Epidendrum orthopterum Hágsater & E.Santiago 2004 GROUP Diothonea SUBGROUP Diothonea

TYPE Drawing by © Lopez and The AMO Herbaria Website

Common Name The Straight Winged Epidendrum [refers to the wings on the column]

Flower Size .8” [2 cm]

Found in Colombia on the Cordillera Central south of the Nevado de Tolima at elevations of 3200 to 3500 meters as a large sized, cold growing terrestrial with erect, branching from the apical internodes of the previous stem, cane-like, terete, thin, straight stems carrying 5 to 7, all along the apical half of the stem, erect, distichous, coriaceous, narrowly lanceolate, bilobed to unequally bilobed, minute dorsal keel, margin entire leaves that blooms in the spring on a terminal, erect, racemose, occuring only once, .8” [2 cm] long overall, peduncle thin, short, bractless, rachis terete, thin, straight, simultaneously 10 to 12 flowered inflorescence with shorter than the ovary, narrowly triangular, acuminate floral bracts and carrying resupinate, pinkish red flowers with the apex of the column green.

"Epidendrum orthopterum belongs to the GROUP Diothonea SUBGROUP Diothonea which is characterized by the branching plants, linear lanceolate to oblong, bilobed leaves, racemose, arching-nutant inflorescence, membranaceous, rarely fleshy flowers, the entire to 3-lobed, ecallose lip with the margin erose with 1 to 10 thin keels, smooth to erose, the column completely to obliquely united to the lip, the anther reniform. The new species is recognized by the short inflorescence, .8" [2 cm] long, with 10 to 12 flowers, the narrowly ovate, 3-veined petals, .152" [3.8 mm] wide, the lip with 7, erose keels and the column with wings at the union of the column and lip straight, i.e. ·not involute. Epidendrum dolichorhachis has a 2.4 to 5" [6 to 12.5 cm] long inflorescence with 15 to 30 flowers, oblong petals, .92 to 1.04" [2.3 to 2.6 mm] wide, and the lip with 5, erose, serrulate keels. Epidendrum yarumalense Hágsater & E. Santiago has linear oblanceolate, single veined petals, .028 to .056" [.7 to 1.4 mm] wide, the lip has 4 to 5 very low, inconspicuous keels. Epidendrum lloense (Lindl.) Hágsater & Dodson has a 2 to 4.8" [5 to 12 cm] long inflorescence, narrowly ovate to subtrullate, 4 to 5 veined petals, .24 to .26" [6.0-6.6 mm] wide, 5 low keels on the lip forming a convex disc and a very prominent and involute column foot. Epidendrum gratissimum (Rchb. f.) Hágsater & Dodson has ovate petals, and the subreniform, apically 4-lobed lip, with 3 to 5, laminar, erose keels." Hagsater etal 2004


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 7 Plate 770 Hagsater & Santiago 2004 drawing fide; Orquideologia Vol 24 #1 2005; Icones Orchidacearum Vol 8 Plate 838 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 859 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum Vol 8 Plate 879 Hagsater & Sanchez 2006 see recognition section; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 drawing fide;