Epidendrum yanesharum Acuña-Tarazona, Chocce-Peña et Hágsater 2013 GROUP Elleanthoides SUBGROUP Rhombochilum

TYPE Photo by © Miguel Chocce Peña

TYPE Drawing

TYPE Drawing by © Jimenez, Hágsater & E.Santiago and The AMO Herbario Website

Common Name The Yanesha Epidendrum [An indigenous people of the central rainforest of Peru]

Flower Size to .6" [1.5 cm]

Found in Pasco department of Peru at elevations around 3170 meters as a medium sized, cold growing epiphyte with terete, canelike, erect, straight, branching from the sub-apical internodes of the stems that are enveloped basally by tubular, non-foliaceous, scarious sheaths and carrying up to 15, all along the apical half of the stem, alternate, articulate, coriaceous, lanceolate, low dorsal keel, unequally bilobed, margin crenate leaves that blooms in the spring on a terminal, pluri-racemose, a new raceme arising while the original is still in bloom, subtended by a basal, triangular-ovate, acute, amplexicaul, short bract, arching, sub-sessile, .56" [1.4 cm] long, successively 4 flowered, 2 open at any one time inflorescence with nearly as long as the ovary, prominent triangular, acuminate, amplexicaul floral bracts and carrying non-fragrant flowers.

": Epidendrum yanesharum belongs to the GROUP Elleanthoides SUBGROUP Rhombochilum which is characterized by the branching habit, small fleshy leaves and a short 3 to 4 flowered, nutant inflorescence on a short thick peduncle. The species is recognized by the lanceolate leaves 1.52" to 1.88" x .28 to .4" [3.8 to 4.7 x 0.7 to 1 cm]; the sub-sessile inflorescence that produces successive racemes when the previous raceme is still in flower; lateral sepals oblong-elliptic, acute, .28 to .32" [7 to 8 mm] long, the lip clearly 3-lobed, its base cuneate, and the 4 pollinia. Epidendrum chinchaoense Hágsater, D.Trujillo & E.Santiago is vegetatively very similar but the lateral sepals are lanceolate, strongly falcate and acuminate; the lip is entire with the apex long-acuminate, and the column geniculate at the base with respect to the ovary. Epidendrum oripicoranense Hágsater & E.Santiago has shorter, lanceolate-oblong leaves, .24 to .92" x .08 to .12" [0.6 to 2.3 x 0.2 to 0.3 cm]; the inflorescence is distichous, non-successive, sepals elliptic, .2 to .24" [5 to 6 mm] long, and the flowers are greenish purple with a cream-colored lip." Hagsater etal 2013


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 14 Plate 1497 Hagsater & Sanchez 2013 drawing fide;