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
Start Page:125
Keywords:aroids, chromosome number, pollen, Spathiphyllum minor, Spathiphyllum pygmaeum, taxonomy

Spathiphyllum pygmaeum from Ecuador is described as a species new to science and illustrated. Only 10 – 15 cm tall, it is the smallest species in the genus and it is characterised by leaf blades 7 – 10 cm long and c. 2 cm wide, with 3 – 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.

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