Harvard University Herbaria & Libraries

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FH: 00394292 Dermatocarpon luridum (Dillenius ex Withering) J. R. Laundon USA: Massachusetts Waltham: [data not captured] W. Gerritson 1904-6
FH: 00430890 Leptogium corticola (Taylor) Tuckerman USA: Massachusetts Westford: [no additional data] W. Gerritson 1905-4-29
FH: 01139573 Lobaria amplissima (Scopoli) Forssell USA: Massachusetts Waltham: [no additional data] W. Gerritson 1906-1-7
FH: 01139381 Nephroma helveticum Acharius USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-10-24
FH: 00468080 Parmotrema crinitum (Acharius) M. Choisy USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905-5-21
FH: 01139478 Peltigera canina sorediata Schaerer USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-11
FH: 01139468 Peltigera horizontalis (Hudson) Baumgarten USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905-10
FH: 00472742 Phaeophyscia adiastola (Esslinger) Esslinger USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-10
FH: 00472742 Physcia orbicularis (Baumgarten) Poetsch USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-10
Amblystegiaceae
FH: 00514154 Campylium hispidulum (Bridel) Mitten USA: Massachusetts Canton: [data not captured] W. Gerritson 1908-6-13
FH: 00838589 Hygroamblystegium tenax (Hedwig) Jennings USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00849684 Platyhypnidium riparioides (Hedwig) Dixon USA: Massachusetts Weston: [no additional data] W. Gerritson 1906-9-15
Brachytheciaceae
FH: 00790456 Brachythecium rutabulum (Hedwig) Schimper USA: Massachusetts Weston: [no additional data] W. Gerritson 1906-3-31
FH: 00790461 Brachythecium rutabulum (Hedwig) Schimper USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00790471 Brachythecium rutabulum (Hedwig) Schimper USA: Massachusetts Weston: [no additional data] W. Gerritson 1906-3-31
FH: 00515923 Chamberlainia oxycladon (Bridel) H. Robinson USA: Massachusetts Waltham: [data not captured] W. Gerritson 1905-4
FH: 00515924 Chamberlainia oxycladon (Bridel) H. Robinson USA: Massachusetts Waltham: [no additional data] W. Gerritson 1907-11
FH: 00797377 Eurhynchium pulchellum (Hedwig) Jennings USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
Bruchiaceae
FH: 00625375 Bruchia flexousa (Schwägrichen) Müller Halle USA: Massachusetts Reading: [no additional data] W. Gerritson 1902-6-17
Bryaceae
FH: 00797915 Bryum argenteum Hedwig USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-11-8
NEBC: 00797921 Bryum argenteum Hedwig USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-11-8
FH: 01146369 Bryum argenteum Hedwig USA: Massachusetts waltham W. Gerritson 1903-11-8
NEBC: 00843028 Leptobryum pyriforme (Hedwig) Wilson USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-6-11
FH: 00843039 Leptobryum pyriforme (Hedwig) Wilson USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-6-11
FH: 00900336 Rhodobryum ontariense (Kindberg) Kindberg USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
Buxbaumiaceae
NEBC: 00799818 Buxbaumia aphylla Hedwig USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-7-18
Caloplacaceae
FH: 00888022 Caloplaca elegans (Link) Th. Fries USA: Maine York: [data not captured] W. Gerritson 1906-7
Cladoniaceae
FH: 00412537 Cladonia cervicornis (Acharius) Flotow USA: Massachusetts Waltham: [data not captured] W. Gerritson 1905-5
FH: 00412566 Cladonia cervicornis verticillata (Hoffmann) Ahti USA: Massachusetts Waltham: [data not captured] W. Gerritson
FH: 00371538 Cladonia furcata palamaea (Acharius) Nylander USA: Massachusetts Waltham: [data not captured] W. Gerritson 8 1905-5
FH: 01140095 Cladonia papillaria (Ehrhart) Hoffmann USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905
FH: 00426688 Cladonia rei Schaerer USA: Massachusetts Waltham: [data not captured] W. Gerritson 1905-5
FH: 00391232 Cladonia subcariosa evoluta Vainio USA: Massachusetts Waltham: [data not captured] W. Gerritson 1905-5-26
FH: 00407417 Cladonia uncialis obtusata (Acharius) Vainio USA: Massachusetts Waltham: [data not captured] W. Gerritson 1905-5-26
Climaciaceae
FH: 00539169 Climacium kindbergii (Renauld & Cardot) Grout USA: Massachusetts Waltham: [data not captured] W. Gerritson
NEBC: 00539179 Climacium kindbergii (Renauld & Cardot) Grout USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-11-29
NEBC: 00539183 Climacium kindbergii (Renauld & Cardot) Grout USA: Massachusetts Weston: [no additional data] W. Gerritson 1903-11-29
Dicranaceae
FH: 00825468 Orthodicranum flagellare (Hedwig) Loeske USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
Diphysciaceae
NEBC: 00792904 Diphyscium foliosum (Hedwig) D. Mohr USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-8-8
Entodontaceae
FH: 00796654 Entodon cladorrhizans (Hedwig) Müller Halle USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00796655 Entodon cladorrhizans (Hedwig) Müller Halle USA: Massachusetts Weston: [no additional data] W. Gerritson 1906-11-12
Fontinalaceae
FH: 00540670 Dichelyma capillaceum (Withering) Myrin USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-11-29
FH: 00540672 Dichelyma capillaceum (Withering) Myrin USA: Massachusetts Waltham: [no additional data] W. Gerritson
NEBC: 00540688 Dichelyma capillaceum (Withering) Myrin USA: Massachusetts Waltham: [no additional data] W. Gerritson 1903-11-29
FH: 00779996 Fontinalis novae-angliae Sullivant USA: Massachusetts Waltham: [data not captured] W. Gerritson 1906-5-1
FH: 00779999 Fontinalis novae-angliae Sullivant USA: Massachusetts Waltham: [data not captured] W. Gerritson 1906-5-1
Funariaceae
FH: 00847361 Physcomitrium pyriforme (Hedwig) Hampe USA: Massachusetts Waltham: [no additional data] W. Gerritson 1908-6-6
Grimmiaceae
FH: 00557749 Grimmia olneyi Sullivant USA: Massachusetts Canton: [data not captured] W. Gerritson 1908-6-13
FH: 00836388 Hedwigia ciliata (Hedwig) P. Beauvois USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00836393 Hedwigia ciliata (Hedwig) P. Beauvois USA: Massachusetts Waltham: [data not captured] W. Gerritson
Hypnaceae
FH: 00841032 Hypnum curvifolium Hedwig USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00841768 Hypnum pallescens reptile (Michaux) Husnot USA: Massachusetts Waltham: [no additional data] W. Gerritson 1910
Lecanoraceae
FH: 01140472 Lecanora elatina Acharius USA: Maine [data not captured] W. Gerritson 1906-7-1
Leucodontaceae
FH: 00844926 Leucodontella brachypus (Bridel) Noguchi USA: Maine [data not captured] W. Gerritson 1908-7
Ochrolechiaceae
FH: 00888087 Ochrolechia tartarea (Linnaeus) A. Massalongo USA: Massachusetts Waltham: [no additional data] W. Gerritson 1906-2-22
Orthotrichaceae
FH: 00825892 Orthotrichum affine sordidum (Sullivant & Lesquereux) Grout USA: Maine York: [data not captured] W. Gerritson 1908-7
FH: 00824134 Orthotrichum ohioense Sullivant & Lesquereux USA: Massachusetts Reading: [no additional data] W. Gerritson 1908-6-17
FH: 00824209 Orthotrichum strangulatum P. Beauvois USA: Massachusetts Reading: [no additional data] W. Gerritson
NEBC: 00824213 Orthotrichum strangulatum P. Beauvois USA: Massachusetts Reading: [no additional data] W. Gerritson 1909-5-2
Parmeliaceae
FH: 00467455 Melanohalea halei (Ahti) O. Blanco, A. Crespo, P. K. Divakar, Esslinger, D. Hawksworth & Lumbsch USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905
FH: 01140687 Parmelia borreri rudecta (Acharius) Tuckerman USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905-3
FH: 01140827 Parmelia crinita Acharius USA: Massachusetts Waltham: [no additional data] W. Gerritson 1906-3-18
FH: 00467455 Parmelia halei Ahti USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905
FH: 00467455 Parmelia olivacea (Linnaeus) Acharius USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905
Plagiotheciaceae
FH: 00849043 Plagiothecium denticulatum (Hedwig) Schimper USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
Polytrichaceae
FH: 00918504 Polytrichum juniperinum Hedwig USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
Pottiaceae
FH: 00516337 Barbula unguiculata Hedwig USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00516342 Barbula unguiculata Hedwig USA: Massachusetts Waltham: [no additional data] W. Gerritson 1905-10
NEBC: 01132216 Streblotrichum convolutum (Hedwig) P. Beauvois USA: Massachusetts Waltham: [no additional data] W. Gerritson 20 1904-5-20
Sphagnaceae
FH: 01091916 Sphagnum acutifolium Schrader USA: Maine York beach, near "the Nubbles" W. Gerritson 564 1909-7
FH: 01091916 Sphagnum capillifolium (Ehrhart) Hedwig USA: Maine York beach, near "the Nubbles" W. Gerritson 564 1909-7
FH: 01091918 Sphagnum cymbifolium (Ehrhart) Hedwig USA: Maine york beach W. Gerritson 1909-7
NEBC: 00922736 Sphagnum inundatum Russow USA: Maine York: [data not captured] W. Gerritson 1909-7
FH: 00923527 Sphagnum nemoreum Scopoli USA: Maine York: [data not captured] W. Gerritson 1909-7
FH: 00923818 Sphagnum palustre Linnaeus USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-7-24
FH: 00923822 Sphagnum palustre Linnaeus USA: Massachusetts Weston: [no additional data] W. Gerritson 1906-9
FH: 00923903 Sphagnum palustre Linnaeus USA: Maine York: [data not captured] W. Gerritson 1909-7
FH: 00923940 Sphagnum palustre Linnaeus USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-7-24
NEBC: 00923946 Sphagnum palustre Linnaeus USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-7-24
FH: 00924538 Sphagnum recurvum P. Beauvois USA: Massachusetts Waltham: [data not captured] W. Gerritson 1909-8
NEBC: 00924833 Sphagnum robustum (Warnstorf) J. Röll USA: Maine York: [data not captured] W. Gerritson 1909-7
FH: 00996222 Sphagnum subsecundum Nees USA: Maine York Beach W. Gerritson 560 1909-7
FH: 00996256 Sphagnum subsecundum Nees USA: Maine York Beach, in bog at "The Nubbles" W. Gerritson 556 1909-7
FH: 00996257 Sphagnum subsecundum Nees USA: Maine York Beach, in bog at "The Nubbles" W. Gerritson 558 1909-7
Thuidiaceae
FH: 00536957 Anomodon attenuatus (Hedwig) Huebener USA: Massachusetts Weston: [no additional data] W. Gerritson 1908-6-6
FH: 00537405 Anomodon rostratus (Hedwig) Schimper USA: Massachusetts Waltham: [no additional data] W. Gerritson 830 1905-4