Four new species of Philodendron (Araceae) from South America

Publication Type:Journal Article
Year of Publication:2006
Authors:Croat, T., Yu G.
Journal:Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem
Start Page:885
Keywords:aroids, Bolivia, Brazil, Colombia, French Guiana, Peru, taxonomy

Four species of Philodendron sect. Macrobelium, namely P. huaynacapacense from Peru and Bolivia, P. rimachii from Peru, P. ushanum from French Guiana and P. wadedavisii from NW Brazil and SE Colombia, are described as species new to science and illustrated.

Full Text

Investigations with Philodendron at the Missouri Botanical Garden have yielded four new species from South America, while a considerable number of other species there remain in the process of being analysed and described. Nearly every school year the first author is blessed with a gifted Washington University student who chooses to take his or her rotation in his laboratory. At Washington University, each graduate student in biology is expected to do three such internships with different department members and some students are attracted to the training he offers in systematics. The latest is the co-author of this paper, following in the footsteps of other graduate or undergraduate students from Washington University, St Louis University, Grinnell College, the Universidad San Carlos and the University of Milwaukee. They have learned in the aroid working group at the Missouri Botanical Garden to enjoy aroids, to understand their complex morphology using both living and dried specimens, to make detailed descriptions, to write taxonomic keys, to prepare florulas, to write a paper for publication and to share in the publication of new species. Among those who have shared this experience are Nancy Lammert, Douglas Hayworth, Patricia Davila, David Mount, Tom Stiebel, Cavas Engineer, Anne Swart, Alicia Shah, Juan Chaparra, Courtney Finch, Jorge Lingan and Monica Carlsen.
The species described here are members of Philodendron sect. Macrobelium and are from South America, but they cover a broad area from the Guianas (P. ushanum) in the east to W Brazil and S Colombia (P. wadedavisii) in the west and Peru and Bolivia in the south (P. huaynacapacense, P. rimachii).

Scratchpads developed and conceived by (alphabetical): Ed Baker, Katherine Bouton Alice Heaton Dimitris Koureas, Laurence Livermore, Dave Roberts, Simon Rycroft, Ben Scott, Vince Smith