|Publication Type:||Journal Article|
|Year of Publication:||2011|
|Journal:||Willdenowia. Mitteilungen aus dem Botanischen Garten und Museum Berlin-Dahlem. Berlin-Dahlem|
|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.