A study of Allocarya.

Piper, Charles V. 1867-1926.

A study of Allocarya. By Charles V. Piper. - Washington, Govt. Print. Off., 1920. - v, 79-113, vii p. 25 cm. - Smithsonian Institution. United States National Museum. Contributions from the United States National Herbarium. v. 22, pt. 2 .

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Popcorn flowers.

QK1 / .U5 Suppl.

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