Philodendron scottmorianum, a new species of P. sect. Philodendron (Araceae) from the Guianas

Publication Type:Journal Article
Year of Publication:2007
Authors:Croat, T. B., Moonen J.
Journal:Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem
Start Page:535
Keywords:aroids, French Guiana., Philodendron acutum, taxonomy

Philodendron scottmorianum from French Guiana is described as a species new to science and illustrated. The species is a member of P. subg. Philodendron sect. Philodendron subsect. Philodendron ser. Philodendron characterized by its thick stems, large ovate-sagittate blades and long-pedunculate green inflorescences. The species is closely allied and compared with P. acutatum.

Full Text

The second author has explored the vegetation of French Guiana for more than two decades and has been responsible for discovering many interesting and new species. This large and conspicuous new species described here previously eluded other botanists, including the first author, but thanks to the astute observations of Joep Moonen, this species came to be known. There are a number of cordate Philodendron species in the region of the Guianas, most notably P. acutatum Schott, P. billietiae Croat, P. deflexum Poepp. (treated as P. megalophyllum Schott in Mori & al. (1997) by the first author), P. fragrantissimum (Hook.) G. Don, P. grandifolium (Jacq.) Schott, P. melinonii Regel, P. ornatum Schott and P. solimoesense A. C. Sm. Of these only P. acutatum is easily confused with our new species and it is discussed in detail below.

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