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Search for collectorid:[97203] and year collected:[1904]
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FH: 00394289 Dermatocarpon luridum (Dillenius ex Withering) J. R. Laundon USA: Massachusetts Waltham: [data not captured] W. Gerritson 1904-6
FH: 00394292 Dermatocarpon luridum (Dillenius ex Withering) J. R. Laundon USA: Massachusetts Waltham: [data not captured] W. Gerritson 1904-6
FH: 01139381 Nephroma helveticum Acharius USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-10-24
FH: 01139478 Peltigera canina sorediata Schaerer USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-11
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
Bryaceae
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
Pottiaceae
NEBC: 01132216 Streblotrichum convolutum (Hedwig) P. Beauvois USA: Massachusetts Waltham: [no additional data] W. Gerritson 20 1904-5-20
Sphagnaceae
FH: 00923818 Sphagnum palustre Linnaeus USA: Massachusetts Waltham: [no additional data] W. Gerritson 1904-7-24
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