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Botany
[collector note: Canada: DBN (Bryo.), Manitoba (Churchill & Gillam, col. 1956): CAN, DS, WTU; Yukon (col. 1957): CAN, DS, UBC]
Schofield, W. B. & Crum, Howard A.
Schofield, W. B. & Crum, Howard A.
W. B. Schofield & H. A. Crum