NEBC: 00615236 Peltigera horizontalis (Hudson) Baumgarten USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615237 Peltigera polydactyla (Necker) Hoffmann USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
Aizoaceae NEBC: 00761279 Mollugo verticillata Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13880 1957-9-27
NEBC: 00761284 Mollugo verticillata Linnaeus USA: Massachusetts Newburyport: Newburyport S. K. Harris 13048 1957-7-16
Alliaceae NEBC: 00685513 Allium cepa Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13870 1957-9-27
NEBC: 00680602 Allium tricoccum Aiton USA: Massachusetts Boxford: Boxford S. K. Harris 12642 1957-6-4
NEBC: 00611607 Allium vineale Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13871 1957-9-27
Amaranthaceae NEBC: 00614841 Amaranthus blitoides S. Watson USA: Massachusetts Ipswich: Ipswich S. K. Harris 13873 1957-9-27
NEBC: 00598383 Amaranthus retroflexus Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13308 1957-7-31
NEBC: 00598384 Amaranthus retroflexus Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13277 1957-7-31
Apiaceae NEBC: 02285319 Cicuta bulbifera Linnaeus USA: Massachusetts Wenham: Coy Pond S. K. Harris 13744 1957-9-2
NEBC: 02160278 Daucus carota Linnaeus USA: Massachusetts Ipswich: Castle Hill S. K. Harris 13983 1957-10-4
NEBC: 02285144 Hydrocotyle americana Linnaeus USA: Massachusetts Wenham: Coy Pond S. K. Harris 13751 1957-9-2
NEBC: 02285321 Sium suave Walter USA: Massachusetts Rowley: Rooty Plain, Mill Pond S. K. Harris 13507 1957-8-16
Asclepiadaceae NEBC: 00572806 Asclepias incarnata pulchra [delete] (Ehrhart ex Willdenow) Woodson USA: Massachusetts Groveland: Groveland S. K. Harris 12868 1957-7-2
NEBC: 00572808 Asclepias incarnata pulchra [delete] (Ehrhart ex Willdenow) Woodson USA: Massachusetts Ipswich: Ipswich S. K. Harris 14029 1957-10-4
NEBC: 00572810 Asclepias incarnata pulchra [delete] (Ehrhart ex Willdenow) Woodson USA: Massachusetts Methuen: Methuen S. K. Harris 12845 1957-7-1
Asteraceae NEBC: 02577264 Bidens beckii Torrey USA: Massachusetts Boxford: Four Mile Pond S. K. Harris 13659 1957-8-24
NEBC: 02577265 Bidens beckii Torrey USA: Massachusetts Ipswich: Hoods Pond S. K. Harris 13239 1957-7-29
NEBC: 02577266 Bidens beckii Torrey USA: Massachusetts Topsfield: Ipswich River below Winthrop St. S. K. Harris 13621 1957-8-23
NEBC: 02577210 Bidens cernua Linnaeus USA: Massachusetts North Andover: Lake Cochichewick S. K. Harris 14080 1957-10-11
NEBC: 02577272 Bidens discoidea (Torrey & A. Gray) Britton USA: Massachusetts Merrimac: Lake Attitash S. K. Harris 13710 1957-8-28
NEBC: 01078093 Crepis capillaris (Linnaeus) Wallroth USA: Massachusetts Ipswich: Ipswich, Castle Hill S. K. Harris 13996 1957-10-4
NEBC: 01690425 Erechtites hieraciifolius (Linnaeus) Rafinesque ex de Candolle USA: Massachusetts Georgetown: dump off of Rt 133 S. K. Harris 13583 1957-8-21
NEBC: 02577267 Galinsoga quadriradiata Ruiz & Pavon USA: Massachusetts Wenham: Coy Pond S. K. Harris 13746 1957-9-2
NEBC: 01019258 Mikania scandens (Linnaeus) Willdenow USA: Massachusetts South Groveland S. K. Harris 13958 1957-9-29
NEBC: 01019259 Mikania scandens (Linnaeus) Willdenow USA: Massachusetts Ipswich: Ipswich S. K. Harris 13448 1957-8-14
NEBC: 01019261 Mikania scandens (Linnaeus) Willdenow USA: Massachusetts Rowley: Rowley S. K. Harris 13496 1957-8-16
NEBC: 01019264 Mikania scandens (Linnaeus) Willdenow USA: Massachusetts Wenham: Wenham S. K. Harris 13764 1957-9-2
NEBC: 01054438 Solidago gigantea Aiton USA: Massachusetts Ipswich: Ipswich S. K. Harris 14017 1957-10-4
NEBC: 02285202 Xanthium strumarium glabratum (de Candolle) Cronquist USA: Massachusetts North Andover: Lake Cochichewick S. K. Harris 14046 1957-10-6
Bignoniaceae NEBC: 01582494 Catalpa bignonioides Walter USA: Massachusetts Georgetown: Dump off Rt 133 S. K. Harris 13591 1957-8-21
Boraginaceae NEBC: 00577241 Myosotis scorpioides Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13456 1957-8-14
Brassicaceae NEBC: 00733273 Rorippa palustris hispida (Desvaux) Rydberg USA: Massachusetts Amesbury Town S. K. Harris 12995 1957-7-11
Cabombaceae NEBC: 00502852 Brasenia schreberi J. F. Gmelin USA: Massachusetts Essex: Essex S. K. Harris 13343 1957-8-7
NEBC: 00502853 Brasenia schreberi J. F. Gmelin USA: Massachusetts Georgetown: Georgetown S. K. Harris 12978 1957-7-8
NEBC: 00502854 Brasenia schreberi J. F. Gmelin USA: Massachusetts Groveland: Groveland S. K. Harris 12889 1957-7-2
NEBC: 00502855 Brasenia schreberi J. F. Gmelin USA: Massachusetts Hamilton: Hamilton S. K. Harris 1957-6-28
NEBC: 00502856 Brasenia schreberi J. F. Gmelin USA: Massachusetts Haverhill: Haverhill S. K. Harris 13137 1957-7-23
NEBC: 00502859 Brasenia schreberi J. F. Gmelin USA: Massachusetts Methuen Town S. K. Harris 12850 1957-7-1
NEBC: 00502860 Brasenia schreberi J. F. Gmelin USA: Massachusetts Middleton: Middleton S. K. Harris 12907 1957-7-4
NEBC: 00502862 Brasenia schreberi J. F. Gmelin USA: Massachusetts Rowley: Rowley S. K. Harris 13520 1957-8-16
NEBC: 00502863 Brasenia schreberi J. F. Gmelin USA: Massachusetts Wenham: Wenham S. K. Harris 13097 1957-7-21
NEBC: 00578662 Cabomba caroliniana A. Gray USA: Massachusetts Andover: Andover S. K. Harris 12797 1957-6-24
Caprifoliaceae NEBC: 02160528 Lonicera xylosteum Linnaeus USA: Massachusetts Salem: Little Misery Island S. K. Harris 13294 1957-7-31
NEBC: 02160509 Sambucus nigra canadensis (Linnaeus) Bolli USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13542 1957-8-14
Ceratophyllaceae NEBC: 00834190 Ceratophyllum demersum Linnaeus USA: Massachusetts Groveland: Groveland S. K. Harris 12879 1957-7-2
NEBC: 00834191 Ceratophyllum demersum Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13454 1957-8-14
NEBC: 00834193 Ceratophyllum demersum Linnaeus USA: Massachusetts Peabody: Peabody S. K. Harris 12765 1957-6-21
NEBC: 00834263 Ceratophyllum echinatum A. Gray USA: Massachusetts Hamilton: Hamilton S. K. Harris 12805 1957-6-28
Chenopodiaceae NEBC: 00561574 Chenopodium album Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13297 1957-7-31
NEBC: 00598903 Chenopodium bonus-henricus Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13307 1957-7-31
Cladoniaceae NEBC: 00615235 Cladonia cervicornis verticillata (Hoffmann) Ahti USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615218 Cladonia cornuta (Linnaeus) Hoffmann USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615219 Cladonia cristatella Tuckerman USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615220 Cladonia cristatella Tuckerman USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615221 Cladonia furcata (Hudson) Schrader USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615222 Cladonia gracilis turbinata (Acharius) Ahti USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615223 Cladonia gracilis turbinata (Acharius) Ahti USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00811165 Cladonia ramulosa (Withering) J. R. Laundon USA: New Hampshire Runout field, Drummer Hill, Drummer NH S. K. Harris 14188 1957-11-30
NEBC: 00615224 Cladonia rangiferina (Linnaeus) Weber ex F. H. Wiggers USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615225 Cladonia rangiferina (Linnaeus) Weber ex F. H. Wiggers USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615226 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615227 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615228 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615229 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615230 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615231 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615232 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615233 Cladonia rei Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00811166 Cladonia scabriuscula (Delise) Nylander USA: New Hampshire Runout field, Drummer Hill, Drummer NH S. K. Harris 14179 1957-11-30
NEBC: 00615234 Cladonia stellaris (Opiz) Pouzar & Vězda USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615235 Cladonia verticillata (Hoffmann) Schaerer USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
Commelinaceae NEBC: 00567799 Tradescantia virginiana Linnaeus USA: Massachusetts Lynnfield: Lynnfield S. K. Harris 14104 1957-10-18
Convolvulaceae NEBC: 00655771 Convolvulus arvensis Linnaeus USA: Massachusetts Topsfield: Topsfield S. K. Harris 13327 1957-8-6
NEBC: 00725038 Cuscuta gronovii Willdenow ex Roemer & Schultes USA: Massachusetts Topsfield: Topsfield S. K. Harris 13606 1957-8-23
Cornaceae NEBC: 02160133 Benthamidia florida (Linnaeus) Spach USA: Massachusetts North Andover: Harold Parker State Forest S. K. Harris 12745 1957-5-26
Cucurbitaceae NEBC: 01582466 Echinocystis lobata (Michaux) Torrey & A. Gray USA: Massachusetts Georgetown: Dump off Rt 133 S. K. Harris 13571 1957-8-21
Cyperaceae NEBC: 01620460 Carex atlantica atlantica USA: Massachusetts Methuen: Mystic Pond S. K. Harris 12842 1957-7-1
NEBC: 01042172 Cladium mariscoides (Muhlenberg) Torrey USA: Massachusetts Hamilton: Hamilton S. K. Harris 12822 1957-6-28
NEBC: 01043786 Cyperus diandrus Torrey USA: Massachusetts Boxford: Boxford S. K. Harris 14043 1957-10-5
NEBC: 01043792 Cyperus diandrus Torrey USA: Massachusetts Rowley: Rowley S. K. Harris 13492 1957-8-16
NEBC: 01043793 Cyperus diandrus Torrey USA: Massachusetts Merrimac: Merrimac S. K. Harris 13672 1957-8-28
NEBC: 01043974 Cyperus filicinus Vahl USA: Massachusetts Gloucester: Gloucester S. K. Harris 13826 1957-9-15
NEBC: 01018047 Eleocharis flavescens olivacea (Torrey) Gleason USA: Massachusetts Merrimac: Merrimac S. K. Harris 13719 1957-8-28
NEBC: 01018048 Eleocharis flavescens olivacea (Torrey) Gleason USA: Massachusetts Wenham: Wenham S. K. Harris 13756 1957-9-2
NEBC: 01018049 Eleocharis flavescens olivacea (Torrey) Gleason USA: Massachusetts Ipswich: Ipswich S. K. Harris 13241 1957-7-29
NEBC: 01048716 Eleocharis robbinsii Oakes USA: Massachusetts Essex: Essex S. K. Harris 13376 1957-8-7
NEBC: 00766187 Lipocarpha micrantha (Vahl) G. C. Tucker USA: Massachusetts North Andover: North Andover S. K. Harris 14058 1957-10-6
NEBC: 00874101 Rhynchospora capitellata (Michaux) Vahl USA: Massachusetts Methuen Town S. K. Harris 12858 1957-7-1
NEBC: 00802901 Rhynchospora fusca (Linnaeus) W. T. Aiton USA: Massachusetts Georgetown: Georgetown S. K. Harris 12968 1957-7-8
NEBC: 00954700 Schoenoplectiella purshiana (Fernald) Lye USA: Massachusetts Merrimac: Lake Attitash S. K. Harris 13671 1957-8-28
NEBC: 01104700 Schoenoplectus subterminalis (Torrey) Soják USA: Massachusetts Groveland: Crane Pond S. K. Harris 12866 1957-7-2
NEBC: 01104701 Schoenoplectus subterminalis (Torrey) Soják USA: Massachusetts Ipswich: Hoods Pond S. K. Harris 13247 1957-7-29
NEBC: 01104702 Schoenoplectus subterminalis (Torrey) Soják USA: Massachusetts Middleton: Creighton Pond S. K. Harris 12893 1957-7-4
NEBC: 01104703 Schoenoplectus subterminalis (Torrey) Soják USA: Massachusetts Rowley: Rooty Plain, Mill Pond S. K. Harris 13500 1957-8-16
NEBC: 00954700 Scirpus purshianus Fernald USA: Massachusetts Merrimac: Lake Attitash S. K. Harris 13671 1957-8-28
NEBC: 01620218 Scirpus purshianus Fernald USA: Massachusetts Groveland: Johnson's Pond S. K. Harris 13966 1957-9-29
Elatinaceae NEBC: 00750568 Elatine americana (Pursh) Arnott USA: Massachusetts Boxford: Boxford S. K. Harris 13532 1957-8-18
NEBC: 01620334 Elatine minima (Nuttall) Fischer ex C. A. Meyer USA: Massachusetts Merrimac: Lake Attitash S. K. Harris 13733 1957-8-28
NEBC: 02285863 Elatine minima (Nuttall) Fischer ex C. A. Meyer USA: Massachusetts Amesbury: Tuxbury Pond S. K. Harris 13017 1957-7-11
NEBC: 02285864 Elatine minima (Nuttall) Fischer ex C. A. Meyer USA: Massachusetts Groveland: Johnsons Pond S. K. Harris 13979 1957-9-29
Fabaceae NEBC: 00534107 Lathyrus latifolius Linnaeus USA: Massachusetts Amesbury Town S. K. Harris 12992 1957-7-11
NEBC: 00643468 Phaseolus vulgaris Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13854 1957-9-27
NEBC: 00643488 Pisum sativum Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13853 1957-9-27
Haloragaceae NEBC: 01143159 Myriophyllum exalbescens Fernald USA: Massachusetts Wenham: [data not captured] S. K. Harris 1957-7-21
NEBC: 01143161 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Gloucester: [data not captured] S. K. Harris 1957-9-15
NEBC: 01143165 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Saugus: [data not captured] S. K. Harris 1957-7-15
NEBC: 01620284 Myriophyllum humile (Rafinesque) Morong USA: Massachusetts Lynnfield: Suntaug Lake S. K. Harris 14152 1957-10-18
NEBC: 01143162 Myriophyllum humile capillaceum (Torrey) Fernald USA: Massachusetts Saugus: [data not captured] S. K. Harris 1957-7-15
NEBC: 00897913 Myriophyllum tenellum Bigelow USA: Massachusetts South Groveland: [data not captured] S. K. Harris 1957-9-29
NEBC: 00897914 Myriophyllum tenellum Bigelow USA: Massachusetts Haverhill: [data not captured] S. K. Harris 1957-10-28
NEBC: 01143166 Myriophyllum tenellum Bigelow USA: Massachusetts North Andover: [data not captured] S. K. Harris 1957-10-6
NEBC: 01143167 Myriophyllum tenellum Bigelow USA: Massachusetts Lynn: [data not captured] S. K. Harris 1957-7-25
NEBC: 01143168 Myriophyllum tenellum Bigelow USA: Massachusetts Boxford: [data not captured] S. K. Harris 1957-8-18
NEBC: 00897912 Myriophyllum verticillatum pectinatum Wallroth USA: Massachusetts Georgetown: [data not captured] S. K. Harris 1957-7-8
NEBC: 01620286 Proserpinaca palustris Linnaeus USA: Massachusetts Rowley: Mill Pond S. K. Harris 13516 1957-8-16
NEBC: 01047030 Proserpinaca palustris crebra Fernald & Griscom USA: Massachusetts Topsfield: Topsfield S. K. Harris 13599 1957-8-23
NEBC: 01047031 Proserpinaca palustris crebra Fernald & Griscom USA: Massachusetts Georgetown: Georgetown S. K. Harris 12955 1957-7-8
Juncaceae NEBC: 00864310 Juncus acuminatus lancifolia Michaux USA: Massachusetts Ipswich: Ipswich S. K. Harris 13442 1957-8-14
NEBC: 00864311 Juncus acuminatus lancifolia Michaux USA: Massachusetts North Andover: North Andover S. K. Harris 14054 1957-10-6
NEBC: 01174006 Juncus articulatus Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13253 1957-7-29
NEBC: 01174007 Juncus articulatus Linnaeus USA: Massachusetts Essex: Essex S. K. Harris 13332 1957-8-7
NEBC: 00897891 Juncus balticus littoralis Engelmann USA: Massachusetts Ipswich: [data not captured] S. K. Harris 1957-9-27
NEBC: 00879969 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Gloucester: Gloucester S. K. Harris 13831 1957-9-15
NEBC: 00879971 Juncus canadensis J. Gay ex Laharpe USA: Massachusetts Ipswich: Ipswich S. K. Harris 13929 1957-9-27
NEBC: 00860755 Juncus marginatus Rostkovius USA: Massachusetts Rowley: Rowley S. K. Harris 13489 1957-8-16
NEBC: 00860756 Juncus marginatus Rostkovius USA: Massachusetts Essex: Essex S. K. Harris 1333 1957-8-7
NEBC: 01045746 Juncus militaris Bigelow USA: Massachusetts Gloucester: Gloucester S. K. Harris 13837 1957-9-15
NEBC: 01045747 Juncus militaris Bigelow USA: Massachusetts North Andover: North Andover, Stearns Pond, ... S. K. Harris 13065 1957-7-19
NEBC: 01148013 Juncus pelocarpus E. Meyer USA: Massachusetts Merrimac: Merrimac S. K. Harris 13722 1957-8-29
NEBC: 01148014 Juncus pelocarpus E. Meyer USA: Massachusetts Gloucester: Gloucester S. K. Harris 13814 1957-9-15
NEBC: 01148015 Juncus pelocarpus E. Meyer USA: Massachusetts North Andover: North Andover S. K. Harris 140664 1957-10-6
NEBC: 00897899 Juncus pylaei Laharpe USA: Massachusetts West Boxford: [data not captured] S. K. Harris 1957-8-12
NEBC: 01150240 Juncus tenuis Willdenow USA: Massachusetts Newburyport: Newburyport S. K. Harris 13039 1957-7-16
Lamiaceae NEBC: 00658115 Lycopus americanus Muhlenberg ex W. P. C. Barton USA: Massachusetts Gloucester: Gloucester S. K. Harris 13834 1957-9-15
NEBC: 00658745 Lycopus uniflorus Michaux USA: Massachusetts Lynnfield: Lynnfield S. K. Harris 14124 1957-10-18
NEBC: 00658747 Lycopus uniflorus Michaux USA: Massachusetts Merrimac: Merrimac S. K. Harris 13712 1957-8-28
NEBC: 00658929 Lycopus virginicus Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 13645 1957-8-25
NEBC: 00658935 Lycopus virginicus Linnaeus USA: Massachusetts Topsfield: Topsfield S. K. Harris 13597 1957-8-23
NEBC: 00658936 Lycopus virginicus Linnaeus USA: Massachusetts Wenham: Wenham S. K. Harris 13749 1957-9-2
NEBC: 01018344 Mentha gentilis Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 13538 1957-8-18
NEBC: 00611441 Mentha piperita Linnaeus USA: Massachusetts Rowley: Rowley, Mill Pond, Rooty Plain S. K. Harris 13482 1957-8-16
NEBC: 00591272 Nepeta cataria Linnaeus USA: Massachusetts Georgetown: Georgetown S. K. Harris 13581 1957-8-21
NEBC: 00591153 Physostegia virginiana (Linnaeus) Bentham USA: Massachusetts Boxford: Boxford S. K. Harris 13312 1957-8-4
NEBC: 00686204 Scutellaria galericulata Linnaeus USA: Massachusetts Amesbury Town S. K. Harris 13002 1957-7-11
NEBC: 00686213 Scutellaria galericulata Linnaeus USA: Massachusetts Merrimac: Merrimac S. K. Harris 13679 1957-8-28
NEBC: 00686219 Scutellaria galericulata Linnaeus USA: Massachusetts North Andover: North Andover S. K. Harris 12927 1957-7-7
NEBC: 00762359 Scutellaria lateriflora Linnaeus USA: Massachusetts Lynn: Lynn S. K. Harris 13175 1957-7-25
NEBC: 00762369 Scutellaria lateriflora Linnaeus USA: Massachusetts Wenham: Wenham S. K. Harris 13748 1957-9-2
NEBC: 00581003 Teucrium canadense Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 14034 1957-10-4
NEBC: 00686689 Trichostema dichotomum Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13995 1957-10-4
Lemnaceae NEBC: 00875183 Spirodela polyrrhiza (Linnaeus) Schleiden USA: Massachusetts Haverhill: Haverhill S. K. Harris 13126 1957-7-23
NEBC: 00875184 Spirodela polyrrhiza (Linnaeus) Schleiden USA: Massachusetts Rowley: Rowley S. K. Harris 13481 1957-8-16
NEBC: 01151014 Wolffia columbiana H. Karsten USA: Massachusetts Haverhill: Haverhill S. K. Harris 13127 1957-7-23
NEBC: 01151013 Wolffia columbiana H. Karsten USA: Massachusetts West Boxford S. K. Harris 14074 1957-10-11
Liliaceae NEBC: 00567681 Lilium lancifolium Thunberg USA: Massachusetts Boxford: Boxford S. K. Harris 13271 1957-7-30
Lobeliaceae NEBC: 01582678 Lobelia dortmanna Linnaeus USA: Massachusetts Andover: Haggetts Pond S. K. Harris 14098 1957-10-11
NEBC: 01582681 Lobelia dortmanna Linnaeus USA: Massachusetts Essex: Chebacco Lake S. K. Harris 13340 1957-8-7
Magnoliaceae NEBC: 00217779 Magnolia virginiana Linnaeus USA: Massachusetts Gloucester: East of Magnolia Station S. K. Harris 14166 1957-11-24
Nymphaeaceae NEBC: 01014093 Nuphar variegata Engelmann ex Durand USA: Massachusetts Amesbury Town S. K. Harris 13016 1957-7-11
NEBC: 01014096 Nuphar variegata Engelmann ex Durand USA: Massachusetts Middletown S. K. Harris 12905 1957-7-4
NEBC: 01014097 Nuphar variegata Engelmann ex Durand USA: Massachusetts Methuen Town S. K. Harris 12855 1957-7-1
NEBC: 01014098 Nuphar variegata Engelmann ex Durand USA: Massachusetts Merrimac: Merrimac S. K. Harris 13691 1957-8-28
NEBC: 01014099 Nuphar variegata Engelmann ex Durand USA: Massachusetts Lynn: Lynn S. K. Harris 13183 1957-7-25
NEBC: 01014100 Nuphar variegata Engelmann ex Durand USA: Massachusetts Ipswich: Ipswich S. K. Harris 13458 1957-8-14
NEBC: 01014102 Nuphar variegata Engelmann ex Durand USA: Massachusetts Hamilton: Hamilton S. K. Harris 12804 1957-6-28
NEBC: 01014103 Nuphar variegata Engelmann ex Durand USA: Massachusetts Groveland: Groveland S. K. Harris 12877 1957-7-2
NEBC: 01014104 Nuphar variegata Engelmann ex Durand USA: Massachusetts Georgetown: Georgetown S. K. Harris 12984 1957-7-8
NEBC: 01014105 Nuphar variegata Engelmann ex Durand USA: Massachusetts Essex: Essex S. K. Harris 13375 1957-8-7
NEBC: 01014108 Nuphar variegata Engelmann ex Durand USA: Massachusetts Peabody: Peabody S. K. Harris 12761 1957-6-21
NEBC: 01014109 Nuphar variegata Engelmann ex Durand USA: Massachusetts Saugus: Saugus S. K. Harris 13029 1957-7-15
NEBC: 01014110 Nuphar variegata Engelmann ex Durand USA: Massachusetts Wenham: Wenham S. K. Harris 13096 1957-7-21
NEBC: 01014391 Nymphaea odorata Aiton USA: Massachusetts Amesbury Town S. K. Harris 13015 1957-7-11
NEBC: 01014393 Nymphaea odorata Aiton USA: Massachusetts Andover: Andover S. K. Harris 12790 1957-6-24
NEBC: 01014395 Nymphaea odorata Aiton USA: Massachusetts Boxford: Boxford S. K. Harris 13418 1957-8-12
NEBC: 01014400 Nymphaea odorata Aiton USA: Massachusetts Essex: Essex S. K. Harris 13345 1957-7-8
NEBC: 01014401 Nymphaea odorata Aiton USA: Massachusetts Georgetown: Georgetown S. K. Harris 12985 1957-7-8
NEBC: 01014402 Nymphaea odorata Aiton USA: Massachusetts Gloucester: Gloucester S. K. Harris 13811 1957-9-15
NEBC: 01014403 Nymphaea odorata Aiton USA: Massachusetts Groveland: Groveland S. K. Harris 12883 1957-7-2
NEBC: 01014404 Nymphaea odorata Aiton USA: Massachusetts Hamilton: Hamilton S. K. Harris 12823 1957-6-28
NEBC: 01014407 Nymphaea odorata Aiton USA: Massachusetts Ipswich: Ipswich S. K. Harris 13463 1957-8-14
NEBC: 01014408 Nymphaea odorata Aiton USA: Massachusetts Ipswich: Ipswich S. K. Harris 13464 1957-8-14
NEBC: 01014409 Nymphaea odorata Aiton USA: Massachusetts Methuen Town S. K. Harris 12856 1957-7-1
NEBC: 01014410 Nymphaea odorata Aiton USA: Massachusetts Middleton: Middleton S. K. Harris 12901 1957-7-4
NEBC: 01014411 Nymphaea odorata Aiton USA: Massachusetts Peabody: Peabody S. K. Harris 12760 1957-6-21
NEBC: 01014412 Nymphaea odorata Aiton USA: Massachusetts Rowley: Rowley S. K. Harris 13517 1957-8-16
NEBC: 01014415 Nymphaea odorata Aiton USA: Massachusetts Wenham: Wenham S. K. Harris 13094 1957-7-21
NEBC: 01014416 Nymphaea odorata Aiton USA: Massachusetts Wenham: Wenham S. K. Harris 13103 1957-7-21
NEBC: 00761938 Nymphaea tuberosa Paine USA: Massachusetts Lynn: Lynn S. K. Harris 13184 1957-7-25
Oleaceae NEBC: 01076817 Fraxinus pennsylvanica Marshall USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13450 1957-8-14
NEBC: 01035009 Ligustrum amurense Carr. USA: Massachusetts Ipswich: Ipswich, vicinity of Castle Hill S. K. Harris 14019 1957-10-4
NEBC: 00578868 Ligustrum vulgare Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 14197 1957-12-28
Orobanchaceae NEBC: 02285917 Agalinis paupercula (A. Gray) Britton USA: Massachusetts Newbury: Plum Island S. K. Harris 13807 1957-9-14
NEBC: 02285919 Agalinis purpurea (Linnaeus) Pennell USA: Massachusetts Ipswich: River Road S. K. Harris 13897 1957-9-27
NEBC: 02285128 Aureolaria flava (Linnaeus) Farwell USA: Massachusetts Ipswich: S. K. Harris 13850 1957-9-27
Oxalidaceae NEBC: 00761905 Oxalis corniculata Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 14011 1957-10-4
NEBC: 00761906 Oxalis corniculata Linnaeus USA: Massachusetts North Andover: North Andover S. K. Harris 14165 1957-11-22
Papaveraceae NEBC: 00697961 Adlumia fungosa (Aiton) Greene ex Britton, Stearn & Poggenburg USA: Massachusetts Boxford: Boxford S. K. Harris 13957 1957-9-28
Phytolaccaceae NEBC: 00732631 Phytolacca americana Linnaeus USA: Massachusetts Amesbury Town S. K. Harris 12993 1957-7-11
Plantaginaceae NEBC: 00745104 Callitriche heterophylla Pursh USA: Massachusetts Essex: Essex S. K. Harris 13339 1957-8-7
NEBC: 00551058 Callitriche stagnalis Scopoli USA: Massachusetts Amesbury: Amesbury S. K. Harris 12997 1957-7-11
NEBC: 02285913 Gratiola aurea Muhlenberg USA: Massachusetts Merrimac: Lake Attitash S. K. Harris 13725 1957-8-28
NEBC: 02285914 Gratiola aurea Muhlenberg USA: Massachusetts Essex: Chebacco Lake S. K. Harris 13362 1957-8-7
NEBC: 02285843 Linaria canadensis (Linnaeus) Dumont Courset USA: Massachusetts Salem: Little Misery Island S. K. Harris 13306 1957-7-31
NEBC: 02285834 Linaria genistifolia (Linnaeus) Miller USA: Massachusetts Georgetown: Central Street S. K. Harris 12798 1957-6-24
NEBC: 01582489 Plantago rugelii Decaisne USA: Massachusetts Lynnfield: Suntaug Lake S. K. Harris 14121 1957-10-18
NEBC: 02285846 Veronica longifolia Linnaeus USA: Massachusetts Boxford: Middleton Rd, old dump S. K. Harris 12891 1957-7-4
NEBC: 02285869 Veronica serpyllifolia Linnaeus USA: Massachusetts Ipswich: Castle Hill S. K. Harris 14015 1957-10-4
Poaceae NEBC: 00878718 Glyceria borealis (Nash) Batchelder USA: Massachusetts Amesbury Town S. K. Harris 12994 1957-7-11
NEBC: 00878721 Glyceria borealis (Nash) Batchelder USA: Massachusetts Methuen Town S. K. Harris 12836 1957-7-1
NEBC: 01620184 Glyceria laxa (Scribner) Scribner USA: Massachusetts Ipswich: Castle Hill S. K. Harris 14018 1957-10-4
NEBC: 00722621 Sporobolus neglectus Nash USA: Massachusetts Ipswich: Ipswich S. K. Harris 13993 1957-10-4
NEBC: 01182173 Torreyochloa pallida (Torrey) G. L. Church USA: Massachusetts North Andover: North Andover, Stevens Pond S. K. Harris 12925 1957-7-7
NEBC: 01182174 Torreyochloa pallida (Torrey) G. L. Church USA: Massachusetts Peabody: Peabody S. K. Harris 12749 1957-6-21
Polygonaceae NEBC: 01620513 Polygonum aviculare Linnaeus USA: Massachusetts Georgetown: dump off Rt 133 S. K. Harris 13576 1957-8-21
NEBC: 01583711 Polygonum aviculare littorale (Link) Mertens & W. D. J. Koch USA: Massachusetts Salem: North Gooseberry Island S. K. Harris 13282 1957-7-31
NEBC: 01583711 Polygonum buxiforme Small USA: Massachusetts Salem: North Gooseberry Island S. K. Harris 13282 1957-7-31
NEBC: 00645149 Polygonum careyi Olney USA: Massachusetts North Andover: North Andover, Stearns Pond, ... S. K. Harris 13061 1957-7-19
NEBC: 00645836 Polygonum hydropiper Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 13786 1957-4-9
NEBC: 00552034 Polygonum hydropiperoides Michaux USA: Massachusetts Lynn: Lynn S. K. Harris 13173 1957-7-25
NEBC: 00729104 Polygonum robustius (Small) Fernald USA: Massachusetts Rowley: Rowley S. K. Harris 13494 1957-8-16
Pontederiaceae NEBC: 00700425 Heteranthera dubia MacMillan USA: Massachusetts Boxford: Boxford S. K. Harris 13554 1957-8-18
NEBC: 00700426 Heteranthera dubia MacMillan USA: Massachusetts Georgetown: Georgetown S. K. Harris 12987 1957-7-8
NEBC: 00700427 Heteranthera dubia MacMillan USA: Massachusetts Ipswich: Ipswich S. K. Harris 13265 1957-7-29
NEBC: 00700428 Heteranthera dubia MacMillan USA: Massachusetts Topsfield: Topsfield S. K. Harris 13234 1957-7-29
NEBC: 00700430 Heteranthera dubia MacMillan USA: Massachusetts Wenham: Wenham S. K. Harris 13100 1957-7-21
Portulacaceae NEBC: 00759751 Portulaca oleracea Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13291 1957-7-31
Potamogetonaceae NEBC: 01036910 Potamogeton amplifolius Tuckerman USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13468 1957-8-14
NEBC: 01036912 Potamogeton amplifolius Tuckerman USA: Massachusetts Ipswich: Hoods Pond, Ipswich S. K. Harris 13260 1957-7-29
NEBC: 00816874 Potamogeton bicupulatus Fernald USA: Massachusetts North Andover: North Andover, Stearns Pond, ... S. K. Harris 13091 1957-7-19
NEBC: 01009224 Potamogeton epihydrus Rafinesque USA: Massachusetts Essex: Essex, Chebacco Lake S. K. Harris 13379 1957-8-7
NEBC: 01009229 Potamogeton epihydrus Rafinesque USA: Massachusetts Ipswich: Ipswich, Hoods Pond S. K. Harris 13267 1957-7-29
NEBC: 01024009 Potamogeton natans Linnaeus USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13470 1957-8-14
NEBC: 01024132 Potamogeton nodosus Poiret USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13465 1957-8-14
NEBC: 01024133 Potamogeton nodosus Poiret USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13449 1957-8-14
NEBC: 01010008 Potamogeton perfoliatus Linnaeus USA: Massachusetts Ipswich: Ipswich, Hoods Pond S. K. Harris 13264 1957-7-29
NEBC: 00700610 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts West Boxford S. K. Harris 13433 1957-8-12
NEBC: 00700611 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Boxford: Boxford S. K. Harris 13226 1957-7-28
NEBC: 00700614 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Essex: Essex S. K. Harris 13380 1957-8-7
NEBC: 00700615 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Georgetown: Georgetown S. K. Harris 12954 1957-7-8
NEBC: 00700617 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Merrimac: Merrimac S. K. Harris 13727 1957-8-28
NEBC: 00700620 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts West Peabody S. K. Harris 13323 1957-8-6
NEBC: 00700623 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Topsfield: Topsfield S. K. Harris 13598 1957-8-23
NEBC: 00700624 Potamogeton pusillus tenuissimus Mertens & Koch USA: Massachusetts Wenham: Wenham S. K. Harris 13768 1957-9-2
NEBC: 01024355 Potamogeton robbinsii Oakes USA: Massachusetts Ipswich: Ipswich, Hoods Pond S. K. Harris 13242 1957-7-29
NEBC: 01050703 Potamogeton sp. USA: Massachusetts Wenham: Wenham, Pleasant Pd. S. K. Harris 13098 1957-7-21
NEBC: 00816874 Potamogeton spirillus Tuckerman USA: Massachusetts North Andover: North Andover, Stearns Pond, ... S. K. Harris 13091 1957-7-19
Primulaceae NEBC: 00610865 Lysimachia arvensis (Linnaeus) U. Manns & Anderberg USA: Massachusetts Topsfield: Topsfield S. K. Harris 13326 1957-8-6
NEBC: 00578983 Lysimachia vulgaris Linnaeus USA: Massachusetts Topsfield: Topsfield S. K. Harris 13325 1957-8-6
Ranunculaceae NEBC: 00485686 Ranunculus acris Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 12688 1957-6-17
NEBC: 01015813 Ranunculus flabellaris Rafinesque USA: Massachusetts Amesbury Town S. K. Harris 13004 1957-7-11
NEBC: 01015818 Ranunculus flabellaris Rafinesque USA: Massachusetts Groveland: Groveland S. K. Harris 13973 1957-9-29
NEBC: 01015820 Ranunculus flabellaris Rafinesque USA: Massachusetts Ipswich: Ipswich S. K. Harris 13460 1957-8-14
NEBC: 01015825 Ranunculus flabellaris Rafinesque USA: Massachusetts Merrimac: Merrimac S. K. Harris 13715 1957-8-28
NEBC: 01015833 Ranunculus flabellaris Rafinesque USA: Massachusetts Rowley: Rowley S. K. Harris 13501 1957-8-16
NEBC: 00692462 Ranunculus flammula Linnaeus USA: Massachusetts Haverhill: Haverhill S. K. Harris 13129 1957-7-23
NEBC: 00692464 Ranunculus flammula Linnaeus USA: Massachusetts Merrimac: Merrimac S. K. Harris 13734 1957-8-28
Rosaceae NEBC: 00644087 Filipendula vulgaris Moench USA: Massachusetts Boxford: Boxford S. K. Harris 12746 1957-6-18
NEBC: 00644098 Fragaria ananassa (Weston) Duchesne ex Rozier (pro sp.) USA: Massachusetts Georgetown: Georgetown S. K. Harris 13573 1957-8-21
NEBC: 00523112 Physocarpus opulifolius (Linnaeus) Maximowicz USA: Massachusetts Georgetown: Georgetown S. K. Harris 13594 1957-8-21
NEBC: 00562951 Rosa rugosa Thunberg USA: Massachusetts Ipswich: Ipswich S. K. Harris 12641 1957-5-19
Rubiaceae NEBC: 02160546 Cephalanthus occidentalis Linnaeus USA: Massachusetts Amesbury: Tuxbury Rd S. K. Harris 12999 1957-7-11
NEBC: 02160540 Galium asprellum Michaux USA: Massachusetts Lynnfield: Suntaug Lake S. K. Harris 14129 1957-10-18
NEBC: 02160536 Galium tinctorium Linnaeus USA: Massachusetts North Andover: Stevens Pond S. K. Harris 12932 1957-7-7
Salicaceae NEBC: 00723038 Salix meyeriana Rostkoius ex Willdenow USA: Massachusetts Middleton: Middleton S. K. Harris 12895 1957-7-4
NEBC: 00769794 Salix petiolaris Smith USA: Massachusetts Wenham: Wenham S. K. Harris 13741 1957-9-2
Scrophulariaceae NEBC: 02285836 Lindernia dubia anagallidea (Michaux) Cooperrider USA: Massachusetts Gloucester: Niles Pond S. K. Harris 13821 1957-9-15
NEBC: 01582641 Mimulus ringens Linnaeus USA: Massachusetts Ipswich: Ipswich River above Willowdale Dam S. K. Harris 13455 1957-8-14
NEBC: 01582470 Scrophularia lanceolata Pursh USA: Massachusetts Ipswich: Castle Hill S. K. Harris 14000 1957-10-4
NEBC: 02285845 Verbascum thapsus Linnaeus USA: Massachusetts Ipswich: vic. Castle Hill S. K. Harris 13999 1957-10-4
Solanaceae NEBC: 00674433 Datura inoxia Miller USA: Massachusetts Ipswich: Ipswich S. K. Harris 13863 1957-9-27
NEBC: 00674434 Datura inoxia Miller USA: Massachusetts Georgetown: Georgetown S. K. Harris 13570 1957-8-21
NEBC: 00577361 Datura stramonium Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13864 1957-9-27
NEBC: 00598672 Lycium barbarum Linnaeus USA: Massachusetts Georgetown: Georgetown S. K. Harris 13575 1957-8-21
NEBC: 01000425 Petunia atkinsiana (Sweet) D. Don ex W. H. Baxter USA: Massachusetts Ipswich: dump Town Farm Rd. S. K. Harris 13858 1957-9-27
NEBC: 00564338 Solanum dulcamara Linnaeus USA: Massachusetts Lynnfield: Lynnfield S. K. Harris 14127 1957-10-18
NEBC: 00564345 Solanum dulcamara Linnaeus USA: Massachusetts Peabody: Peabody S. K. Harris 12753 1957-6-21
NEBC: 00564348 Solanum dulcamara Linnaeus USA: Massachusetts Salem: Salem S. K. Harris 13301 1957-7-31
NEBC: 00645309 Solanum emulans Rafinesque USA: Massachusetts Salem: Salem, North Gooseberry Island S. K. Harris 13276 1957-7-31
NEBC: 00610092 Solanum tuberosum Linnaeus USA: Massachusetts Georgetown: Georgetown S. K. Harris 13582 1957-8-21
Sparganiaceae NEBC: 00667641 Sparganium americanum Nuttall USA: Massachusetts North Andover: North Andover, Stearns Pd., H... S. K. Harris 13060 1957-7-19
NEBC: 00667641 Sparganium androcladum (Engelmann) Morong USA: Massachusetts North Andover: North Andover, Stearns Pd., H... S. K. Harris 13060 1957-7-19
NEBC: 00754139 Sparganium natans Linnaeus USA: Massachusetts Boxford: Boxford S. K. Harris 13196 1957-7-28
NEBC: 00754140 Sparganium natans Linnaeus USA: Massachusetts Georgetown: Georgetown S. K. Harris 12963 1957-7-8
NEBC: 00754141 Sparganium natans Linnaeus USA: Massachusetts Georgetown: Georgetown S. K. Harris 12959 1957-7-8
NEBC: 00754142 Sparganium natans Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 3243 1957-7-29
NEBC: 00754143 Sparganium natans Linnaeus USA: Massachusetts Rowley: Rowley S. K. Harris 13518 1957-8-16
Stereocaulaceae NEBC: 00615238 Stereocaulon grande (H. Magnusson) H. Magnusson USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
NEBC: 00615239 Stereocaulon grande (H. Magnusson) H. Magnusson USA: New Hampshire Dummer: [data not captured] S. K. Harris 1957-11-30
Tiliaceae NEBC: 00761735 Tilia cordata Miller USA: Massachusetts Salem: Salem S. K. Harris 13300 1957-7-31
Violaceae NEBC: 00771683 Viola tricolor Linnaeus USA: Massachusetts Ipswich: Ipswich S. K. Harris 13869 1957-9-27
Vitaceae NEBC: 01582112 Vitis labrusca Linnaeus USA: Massachusetts Ipswich: Willowdale Dam S. K. Harris 13474 1957-8-14
NEBC: 02284210 Vitis riparia Michaux USA: Massachusetts Ipswich: vicinity Castle Hill S. K. Harris 13994 1957-10-4
