Harvard University Herbaria & Libraries

Asteraceae
NEBC: 00566303 Arctium minus (Hill) Bernhardi USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1053 1964-8-29
NEBC: 01016711 Erigeron canadensis Linnaeus USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1015 1964-8-29
NEBC: 00535705 Helianthus tuberosus Linnaeus USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1055 1964-8-29
Chenopodiaceae
NEBC: 00610575 Salsola tragus Linnaeus USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1030 1964-8-29
NEBC: 00732577 Suaeda linearis (Elliott) Moquin-Tandon USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1062 1964-8-29
Commelinaceae
NEBC: 00567730 Commelina communis Linnaeus USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1054 1964-8-29
Cyperaceae
NEBC: 00808923 Scirpus pendulus Muhlenberg USA: Vermont Highgate: Highgate W. D. Countryman & F. C. Seymour 1229 1965-6-24
Poaceae
NEBC: 00622925 Arrhenatherum elatius (Linnaeus) P. Beauvois ex J. Presl & C. Presl USA: Rhode Island Bristol: Bristol W. D. Countryman & F. C. Seymour 1010 1964-8-29
Trilliaceae
NEBC: 00573325 Medeola virginiana Linnaeus USA: Vermont Fletcher: Fletcher W. D. Countryman & F. C. Seymour 1134 1964-9-25