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THOMAS B. CROAT, EMILY D. YATES & DOUGLAS A. HAYWORTH New taxa of Anthurium and Philodendron (Araceae) from western
 

Summary: THOMAS B. CROAT, EMILY D. YATES & DOUGLAS A. HAYWORTH
New taxa of Anthurium and Philodendron (Araceae) from western
Amazonia
Abstract
Croat, T. B., Yates, E. D. & Hayworth, A.: New taxa of Anthurium and Philodendron (Araceae)
from western Amazonia. Willdenowia 35: 345-358. ISSN 0511-9618; 2005 BGBM Berlin-
Dahlem.
Five new species of Anthurium and Philodendron (Araceae), including two new subspecies, are
described from Amazonian Ecuador and Peru. New taxa include: Anthurium effusilobum subsp.
effusilobum, A. effusilobum subsp. pallidispadix, A. fornicifolium, A. macdanielii, Philodendron
parvilobum and P. pedunculum.
Introduction
The most recent treatment of the Araceae for Ecuador lists 404 species (Croat 1999). Although
not a thorough revision of the aroid species, this list accounts for all published species for Ecua-
dor known up to that date. Many new species in Ecuador remain unpublished. In modern taxo-
nomic revisions of any group of Araceae, the number of recognized species sometimes increases
by as much as 100 %. It is expected that more thorough studies of the Ecuadorian flora will pro-
duce large increases in the number of species recognized and the total number of Araceae may
approach 1500 species, a more than three-fold increase.
The aroid flora of the Amazon lowlands is the best known of any region of Ecuador. This re-

  

Source: Ault, James R. - Chicago Botanic Garden

 

Collections: Biology and Medicine