Essig, Frederick Burt, 1978, A revision of the genus Ptychosperma Labill. (Arecaceae)

Essig, Frederick Burt, 1978, A revision of the genus Ptychosperma Labill. (Arecaceae), Allertonia 1, pp. 415-478

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urn:lsid:zoobank.org:pub:AA3682BAAA664B489B2EA8575F52BEC3

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