A new dwarf Spathiphyllum species (Araceae) from Ecuador

Publication Type:Journal Article
Year of Publication:2011
Authors:Bogner, J
Journal:Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem
Volume:41
Start Page:125
Pagination:127
ISSN:1868-6397
Keywords:aroids, chromosome number, pollen, Spathiphyllum minor, Spathiphyllum pygmaeum, taxonomy
Abstract:

Spathiphyllum pygmaeum from Ecuador is described as a species new to science and illustrated. Only 10 โ€“ 15 cm tall, it is the smallest species in the genus and it is characterised by leaf blades 7 โ€“ 10 cm long and c. 2 cm wide, with 3 โ€“ 5 primary lateral veins on each side of the midrib, a white spathe with green apex and a two-locular ovary with one ovule in each locule; the chromosome number is 2n = 30; the pollen, formerly considered as inaperturate for Spathiphyllum, is actually polyaperturate. It is compared with the closely related S. minor, which is also illustrated.

URL:http://dx.doi.org/10.3372/wi.41.41116
DOI:10.3372/wi.41.41116
Full Text

In the last years Mary Sizemore, an enthusiastic aroid grower from Florida, collected a few Spathiphyllum species in Ecuador and Peru. One of them turned out to be a new species and is described here. This novelty is really a dwarf species, not taller than c. 15 cm. Most Spathiphyllum species are much bigger and in the case of S. cochlearispathum (Liebm.) Engl., the inflorescence can reach the height of a man (Engler & Krause 1908; Bunting 1960). Another small species collected by Mary Sizemore is S. minor G. S. Bunting with a height of c. 20 cm.

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