... The Polytrichaceæ of western North America
By: by T. C. Frye, drawings by Elsie K. Waddingham ...
Series: Proceedings of the Washington academy of sciences.; vol. XII, no. 3
Publisher: Williams & Wilkins company
Published: 1911
Place of publication: Baltimore, Md
Language: eng
Number of pages: 328
Subjects: Polytrichaceae.