A peer-reviewed open-access journal PhytoKeys 48: 1–9 (2015) Two new species of endemic Ecuadorean Amaryllidaceae... 1 doi: 10.3897/phytokeys.48.4399 RESEARCH ARTICLE http://phytokeys.pensoft.net Launched to accelerate biodiversity research Two new species of endemic Ecuadorean Amaryllidaceae (Asparagales, Amaryllidaceae, Amarylloideae, Eucharideae) Alan W. Meerow1, Lou Jost2, Nora Oleas3 1 USDA-ARS-SHRS, National Germplasm Repository, 13601 Old Cutler Road, Miami, Florida 33158, USA 2 EcoMinga Foundation, Via a Runtun, Baños, Tungurahua, Ecuador 3 Universidad Tecnológica Indoamérica, Centro de Investigación de la Biodiversidad y Cambio Climático, Machala y Sabanilla, Quito, Ecuador Corresponding author: Alan W. Meerow (
[email protected]) Academic editor: L. Peruzzi | Received 19 December 2014 | Accepted 14 March 2015 | Published 2 April 2015 Citation: Meerow AW, Jost L, Oleas N (2015) Two new species of endemic Ecuadorean Amaryllidaceae (Asparagales, Amaryllidaceae, Amarylloideae, Eucharideae). PhytoKeys 48: 1–9. doi: 10.3897/phytokeys.48.4399 Abstract New species of the genera Stenomesson and Eucharis (Amaryllidaceae) are described from Ecuador. Ste- nomesson ecuadorense is the second species of the genus reported from that country, and the only endemic one. It is related to S. miniatum and S. campanulatum, both from Peru, with which it shares orange flower color and the fusion of the staminal corona to the perianth tube. It differs from S. miniatum by the non- urceolate perianth, from S. campanulatum by its shorter stamens and longer perianth, and from both by its lower montane, cloud forest habitat. Eucharis ruthiana, found in the vicinity of Zamora, is related to E. moorei from which it differs by the narrower leaves and tepals; short, deeply cleft staminal corona; the long teeth on either side of the free filaments; the narrowly subulate, incurved free filaments; and the shorter style.