Contribution to the morphology and anatomy of Cryptostegia (Cryptostegia grandiflora) /
by Ernst Artschwager.
- Washington : U.S. Dept. of Agriculture, 1946.
- 40 p. : ill. ; 23 cm.
- Technical bulletin / United States Department of Agriculture ; no. 915 .
- Technical bulletin (United States. Department of Agriculture) ; no. 915. .
Caption title. Contribution from Bureau of Plant Industry, Soils, and Agricultural Engineering.