A revision of the genus Ptychosperma Labill. (Arecaceae) Essig, Frederick Burt Allertonia 1978 1 415 478 urn:lsid:zoobank.org:act:98CDF0B4436B4A9DA6EBCC55AEDD0837 Liliopsida Arecaceae Ptychosperma CoL Plantae Arecales Tracheophyta species ramosissimum  This treatment is a stub. You can help Plazi making the full treatment available.