Author: Béguinot, A., & Belosersky, N.:
Title: Revisione monografica del Gen. Apocynum L. Studio biologico e sistematico. [Mem. Atti R. Accad. Lincei, Cl. Sci. Fis. Mat. Nat., Ser. V, 9(15).]
Description: Roma. 4to, 29.5cm. Pp. 597-784, 1 fold. table, 1 fold. map, 35 drawings on 2 pls., 54 photos of herbarium specimens on 9 fold. pls., 12 illus. in text, bibl. Plain new wrappers.

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