Field identification cards /

A set of individual identification cards for rare and sensitive plant species found in the southeastern United States including Puerto Rico. Categories include forbs, shrubs, ferns, and trees. Each card has a color picture on one side and a description and map on the reverse. The description includes: family, flowering date, habitat, and identifying characteristics.

Blühende Kakteen (Iconographia Cactacearum) Im auftrage der Deutschen Kakteen-Gesellschaft ...

Editors: v.1-4, Karl Schumann; v.5-[7] lief. 36, Max Gürke; lief. 37-[45], F. Vaupel.