Synopsis of the Peruvian species of Epidendrum (Orchidaceae: Laeliinae) belonging to the Scabrum group, subgroup Soratae: diversity and description of a new species Author Quispe-Melgar, Harold Rusbelth 0000-0001-6676-0879 Programa de Investigación de Ecología y Biodiversidad, Asociación ANDINUS, Calle Miguel Grau 370, Sicaya, Huancayo, Junín, Perú. & Facultad de Ciencias de la Salud, Universidad Continental, Huancayo, Perú. & rusbeltharold @ gmail. com; hquispem @ continental. edu. pe; https: // orcid. org / 0000 - 0001 - 6676 - 0879 rusbeltharold@gmail.com Author Llacua-Tineo, Elizabeth Santiago Ayala Yashira Stefani Author Hágsater, Eric 0000-0002-2371-9427 Herbario AMO, Montañas Calizas 490, Lomas de Chapultepec, Miguel Hidalgo, CDMX, 11000, México. & erichag _ 1 @ msn. com; herbamo @ prodigy. net. mx; https: // orcid. org / 0000 - 0002 - 2371 - 9427 erichag_1@msn.com text Phytotaxa 2023 2023-07-17 603 1 1 26 http://dx.doi.org/10.11646/phytotaxa.603.1.1 journal article 10.11646/phytotaxa.603.1.1 1179-3163 8153628 25. Epidendrum ypsilum Hágsater & E. Santiago , (2006: t. 900). ( Figure 10F ). Type:— PERU . Amazonas : Prov. Chachapoyas: middle eastern Calla Calla sloptes, near km 415–418 of Leimebamba–Balsas road, 2900– 3150 m , 20 August 1962 , J . Wurdack 1735 , ( holotype : US ! isotype: USM !) . Distribution:— Peru , in the department of Amazonas . The species is restricted to the eastern slopes of the Andes in wet montane forests. Notes:— Epidendrum ypsilum is recognized by its ca. 2 m high plants, with narrowly oblong or oblong-lanceolate leaves, the greenish yellow flowers with sparse wine-colored maculae, the lip with short, radiating wine-colored lines, and the sepals 6.2-7 mm long. In the subgroup Soratae there are 2 species of similar size: E. chrysomyristicum and E. fruticulus , but these species have slightly larger flowers with immaculate sepals, 9-13 mm long. Conservation Status:— DD. Data deficient. As most orchids, listed in CITES appendix II. Examined specimens: — PERU . Abra Barro Negro, carretera de Celedín hacia Leimebamba, Cordillera Calla Calla, 3424 m , 6 October 2020 , Ocupa 269 ( HUT !) .