by Nels R. Lersten , Charles R. Gunn , United States. Agricultural Research Service
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Flowering Plant Embryology
Comparative morphology of the lens on le...
The morphology and toxicology of plant s...
Anatomical and chromosomal observations ...
Hairy vetch (Vicia villosa)
Scarlet vetch (Vicia fulgens)
Samuel Vetch
Common vetch
Biological studies of the vetch bruchid,...