Caryophyllaceae NEBC: 00575534 Silene caroliniana pensylvanica (Michaux) Fernald USA: Massachusetts Waltham: Waltham C. W. Swan 1881-5-29
NEBC: 00693366 Spergularia marina (Linnaeus) Grisebach USA: Massachusetts Gloucester: W. [West] Gloucester C. W. Swan 1881-8-4
NEBC: 00602976 Stellaria graminea Linnaeus USA: Massachusetts Gloucester: East Gloucester C. W. Swan 1881-6-7
Celastraceae NEBC: 00295232 Celastrus scandens Linnaeus USA: Massachusetts Boston: Dorchester C. W. Swan 1881-6-19
Chenopodiaceae NEBC: 00732520 Suaeda linearis (Elliott) Moquin-Tandon USA: Massachusetts Gloucester: West Gloucester C. W. Swan 1881-8-4
Cyperaceae NEBC: 00228384 Carex crinita crinita USA: Massachusetts Rockport: C. W. Swan 1881-8-20
NEBC: 00576837 Carex panicea Linnaeus USA: Massachusetts Boston: Dorchester, Lawrence Av. C. W. Swan 1881-6-19
NEBC: 00854990 Carex plantaginea Lamarck USA: Massachusetts Lowell: Lowell C. W. Swan 1881-6-12
NEBC: 01043180 Carex viridula Michaux USA: Massachusetts Gloucester: Gloucester, beyond Bass Rocks C. W. Swan 1881-8-20
NEBC: 01042169 Cladium mariscoides (Muhlenberg) Torrey USA: Massachusetts East Gloucester C. W. Swan 1881
NEBC: 01043990 Cyperus filicinus Vahl USA: Massachusetts Boston: Boston, Beacon St. C. W. Swan 1881-9-14
NEBC: 00339724 Eleocharis obtusa (Willdenow) Schultes USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 00339724 Eleocharis obtusa jejuna Fernald USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 00339724 Eleocharis ovata (Roth) Roemer & Schultes USA: Massachusetts Milton: C. W. Swan 1881-9-25
NEBC: 00717842 Eleocharis tuberculosa retrorsa Svenson USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-28
NEBC: 01060261 Eriophorum alpinum Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-7-14
NEBC: 01058042 Fimbristylis autumnalis (Linnaeus) Roemer & Schultes USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-8-24
NEBC: 00894646 Scirpus atrocinctus Fernald USA: Massachusetts Boston: W. [West] Boston C. W. Swan 1881-6-27
NEBC: 01160276 Scirpus cyperinus (Linnaeus) Kunth USA: Massachusetts Boston: W. [West] Boston C. W. Swan 1881-9-8
NEBC: 00854135 Scirpus tabernaemontani C. C. Gmelin USA: Massachusetts Gloucester: E. [East] Gloucester, Downs C. W. Swan 1881-7-30
Ericaceae NEBC: 01073224 Pyrola americana Sweet USA: Massachusetts Groton: Groton C. W. Swan 1881
NEBC: 01073406 Pyrola elliptica Nuttall USA: Massachusetts Groton: Groton C. W. Swan 1881
Euphorbiaceae NEBC: 00563016 Chamaesyce nutans (Lagasca) Small USA: Massachusetts Boston: W. [West] Boston flats C. W. Swan 1881-9-26
Fabaceae NEBC: 00591532 Genista tinctoria Linnaeus USA: New Hampshire Beverly C. W. Swan 1881-7-19
NEBC: 00534322 Medicago lupulina Linnaeus USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881
Hypericaceae NEBC: 00774017 Hypericum boreale (Britton) E. P. Bicknell USA: Massachusetts Gloucester: Gloucester, Niles Pond C. W. Swan 1881-8-1
Juncaceae NEBC: 01025693 Juncus balticus littoralis (Engelmann) Snogerup USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-8-1
NEBC: 01174874 Juncus bufonius Linnaeus USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-7-14
NEBC: 01174873 Juncus bufonius Linnaeus USA: Massachusetts Gloucester: E [East] Gloucester C. W. Swan 1881-7
NEBC: 00860758 Juncus marginatus Rostkovius USA: Massachusetts Gloucester: Gloucester, Bass Rock C. W. Swan 1881-7-28
NEBC: 01045734 Juncus militaris Bigelow USA: Massachusetts Cambridge: W. [West] Cambridge, Niles Pond C. W. Swan 1881-8-12
NEBC: 00865362 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Boston: West Roxbury C. W. Swan 1881-6-5
NEBC: 00865361 Luzula multiflora (Ehrhart) Lejeune USA: Massachusetts Brookline: Brookline, Pond Ave. C. W. Swan 1881-6-22
Liliaceae NEBC: 00354260 Uvularia perfoliata Linnaeus USA: Massachusetts Medford: Pine Hill [Middlesex Fells Reservat... C. W. Swan 1881-5-22
Linaceae NEBC: 00741244 Linum medium texanum (Planchon) Fernald USA: Massachusetts Boston: W. B. [West Boston] Flats C. W. Swan 1881-9-8
NEBC: 00741245 Linum medium texanum (Planchon) Fernald USA: Massachusetts Boston: West Boston C. W. Swan 1881-9-8
Oleaceae NEBC: 00375237 Ligustrum vulgare Linnaeus USA: Massachusetts Boston: Dorchester, Williams St. C. W. Swan 1881-5-13
Plantaginaceae NEBC: 00561769 Veronica peregrina Linnaeus USA: Massachusetts Boston: Dorchester, Lawrence Av. C. W. Swan 1881-6-19
Poaceae NEBC: 00878057 Agrostis hyemalis (Walter) Britton, Stearn & Poggenburg USA: Massachusetts Boston: West Boston Flats C. W. Swan 1881-6-27
NEBC: 01178517 Agrostis perennans (Walter) Tuckerman USA: Massachusetts Boston: W. [West] Roxbury, Glen Woods C. W. Swan 1881-9-19
NEBC: 00860382 Deschampsia flexuosa (Linnaeus) Trinius USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-9
NEBC: 00635739 Dichanthelium depauperatum (Muhlenberg) Gould USA: Massachusetts Gloucester: Gloucester C. W. Swan 1881-7-23
NEBC: 01151061 Dichanthelium latifolium (Linnaeus) Harvill USA: Massachusetts Rockport: Rockport, Pidgeon Cove C. W. Swan 1881-7-15
NEBC: 01151126 Dichanthelium linearifolium (Scribner) Gould USA: Massachusetts C. W. Swan 1881-6-25
NEBC: 00609922 Festuca rubra Linnaeus USA: Massachusetts Gloucester: E. [East] Gloucester C. W. Swan 1881-6-17
NEBC: 01149101 Glyceria grandis S. Watson USA: Massachusetts Brookline: Brookline, Pond Av. C. W. Swan 1881-6-22
NEBC: 00863746 Leymus mollis (Trinius) Pilger USA: Massachusetts Gloucester: Gloucester, E. [East] Point C. W. Swan 1881-7-23
NEBC: 00853491 Panicum virgatum spissum Linder USA: Massachusetts West Gloucester C. W. Swan 1881-8-4
NEBC: 00583728 Poa pratensis Linnaeus USA: Massachusetts Lowell: Lowell C. W. Swan 1881-6-12
NEBC: 00583733 Poa pratensis Linnaeus USA: Massachusetts Boston: Boston, Back Bay C. W. Swan 1881-6-2
NEBC: 00700308 Vulpia octoflora glauca (Nuttall) Fernald USA: Massachusetts Boston: West Roxbury C. W. Swan 3504 1881-6-5
Polygalaceae NEBC: 00503021 Polygala verticillata Linnaeus USA: Massachusetts Dorchester: Dorchester C. W. Swan 1881-9-23
Rosaceae NEBC: 00710861 Potentilla egedii groenlandica (Trattinnick) Polunin USA: Massachusetts Gloucester: East Gloucester C. W. Swan 1881-6-17
Rubiaceae NEBC: 00729857 Galium aparine Linnaeus USA: Massachusetts Boston: Brighton Av. C. W. Swan 1881-6-25
Salicaceae NEBC: 00523395 Salix rubens F. v. P. v. Schrank USA: Massachusetts Boston: Boston C. W. Swan 1881-5-13
Saxifragaceae NEBC: 00640076 Ribes americanum Miller USA: Massachusetts Belmont: Waverly C. W. Swan 1881-5-14
Solanaceae NEBC: 00598673 Lycium barbarum Linnaeus USA: Massachusetts East Gloucester C. W. Swan 1881-8-26
