Yazar
Howard Alvin Crum
14 cilt bulundu.
Howard Alvin Crum · Field Museum of Natural History
Sayfa sayısı yok · 1979
Classification / Donrichardsia / Donrichardsia macroneuron / Mosses
Howard Alvin Crum · University of Michigan Press
306 sayfa · 1988
Ecology / Middle West / Peat mosses / Peatlands / Peatland plants
Aaron J. Sharp, Howard Alvin Crum, Patricia Eckel, Howard Crum · New York Botanical Garden
1113 sayfa · 1993
Mosses / Identification / Classification / Mosses (Musci) / Reference / General
Howard Alvin Crum · University of Michigan Press
379 sayfa · 2001
Bryophytes / Morphology / Mosses / Classification / Identification
William C. Steere, Howard Alvin Crum · The New York Botanical Garden Press
220 sayfa · 1977
Flowers / Nature / Nature/Ecology
Howard Alvin Crum · University Herbarium, University of Michigan
417 sayfa · 1973
Great Lakes Region / Identification / Mosses
Howard Alvin Crum · University of Michigan Herbarium
233 sayfa · 1991
Classification / Hornworts (Bryophytes) / Identification / Liverworts
Howard Alvin Crum · New York Botanical Garden
180 sayfa · 1984
Bryophytes / Classification / Peat mosses