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Sable Island, with a catalogue of its vascular plants
Iss 62, Page 1
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The Gray Herbarium expedition to Nova Scotia, 1920
Iss 63, Page 89
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Records preliminary to a general treatment of the Eupatorieae,--I
Iss 64, Page 3
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The Mikanias of northern and western South America
Iss 64, Page 21
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The group of Polypodium lanceolatum in North America
Iss 65, Page 3
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Notes on certain Leguminosae of the tribe Psoraleae
Iss 65, Page 14
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Dyscritothamnus, a new genus of Compositae
Iss 65, Page 24
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A revision of Astragalus, subgenus Homalobus, in the Rocky Mountains
Iss 65, Page 28
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Various North American Spermatophytes, new or transferred
Iss 65, Page 39
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Records preliminary to a general treatment of theEupatorieae,--ii
Iss 65, Page 46
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Polypodium virginianum and P. vulgare
Iss 66, Page 125
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Notes on the flora of western Nova Scotia, 1921
Iss 67, Page 157
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Records preliminary to a general treatment of the Eupatorieae,--III
Iss 68, Page 3
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Studies in the Boraginaceae
Iss 68, Page 43
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Diagnoses and notes relating to the Spermatophytes chiefly of North America
Iss 68, Page 80
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Revision of the American species of Hypoxis
Iss 69, Page 120
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Some genera closely related to Hypoxis
Iss 69, Page 155
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Index [no. 51-75]
Iss 75, Page 1