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

TYPE Drawing

Photo/TYPE Drawing by © Eric Hagsater and The AMO Herbario Website

Flower not?

Inflorescence not?

Photos by © Diego Calderon and his Colombia Birding & Orchid Website

Common Name The Yarumal Epidendrum [A town in Colombia]

Flower Size to 1" [to 2.5 cm]

Found in Antioquia department of Colombia at elevations around 2100 meters as a small sized, cold growing epiphyte with terete, canelike, thin, erect, branching in the apical half of the stem and carrying 4 to 8, all along the stem, narrowly lanceolate, obtuse to minutely bilobed, margin entire leaves that blooms in the spring on a terminal, occuring only once, short, arching-nutant, peduncle, .12 to .16" [3 to 4 mm] long, thin, terete, short, without bracts, racemose, 1 to 1.2" [2.5 to 3 cm] long, successively 7 to 9 flowered inflorescence with shorter than the ovary, triangular, acuminate floral bracts and carrying resupinate, green tinted more or less with red flowers with a green column clearer than the segments and without fragrance data.

"Epidendrum yarumalense 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 thee margin erose, with or without 1 to 10 thin, smooth to erose keels, the column completely to obliquely united to the lip and the anther reniform. The new species has small flowers, slightly arching, .28 to .36" [7 to 9 mm] long column with the wings that unite it to the short lip, the lip entire, reniform, cordate at the base, the nectary penetrating the ovary behind the perianth and the sepals glabrous. Epidendrum c1eistocoleum Hágsater & E. Santiago, also found in Antioquia, has the new stems originating from the apical internodes of the previous stem, linear-lanceolate petals, the reddish to purple lip united to the base of the column which is arching at the base and provided with a pair of prominent, rounded wings ventrally and the ventral surface with a cavity which is accessed by a long narrow slit. Epidendrum cottoniiflorum (Rchb.f.) Hágsater has larger plants, 8 to 20" [20 to 50 cm] tall, much branched, the lip united to the middle of the column, with a very narrow, cuneate base and the column strongly arched at the basal half, forming a prominent hump dorsally." Hagsater 2004


References W3 Tropicos, Kew Monocot list , IPNI ; Icones Orchidacearum 7 Plate 770 Hagsater and Sanchez 2004 see recognition section; * Icones Orchidacearum 7 Plate 799 Hagsater & Sanchez 2004 drawing good; Orquideologia Vol 24 #1 2005 photo fide; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 drawing ok/photo fide; Icones Orchidacearum 17(2) Plate 1759 Hagsater & Jimenez 2020 see recognition section;