Epidendrum jalcaense Chocce, Dalström, Hágsater & J.Arnaiz 2010 GROUP Coronatum SUBGROUP Aristisepalum

TYPE Drawing

Photo by © Miguel Chocce/TYPE Drawing by M. E. Acuña-Tarazona and The AMO Herbaria Website

Part sunCold

Common Name The Jalca Epidendrum [A region of the Andes in northern Peru]

Flower Size 1.2" [3 cm]

Found in northern Peru in scrublands, grasslands and forests fragments at elevations of 3300 to 3400 meters as a medium sized, cold growing terrestrial with erect, simple, cane-like stems carrying up to 9, only in the upper half, alternate, articulate, narrowly elliptic, mucronate, subcoriaceous, green, crenate margined leaves that blooms in the spring on a terminal, arching, racemose, peduncle, 1.6" [4 cm] long, thin, terete; rachis, thin, terete, straight, overall to 4.8" [12 cm] long, simultaneously, densely flowered inflorescene with much shorter than the ovary, triangular floral bracts and without a spathaceous bract.

"Epidendrum jalcaënse belongs to the GROUP Coronatum SUBGROUP Aristisepalum , which has a caespitose habit, simple stems, sub-coriaceous leaves, a racemose inflorescence without spathaceous bracts, and the aristate sepals. The species is epiphytic and tall up to 22.4" [56 cm)], spreading leaves, petals 6-veined, the 3-lobed lip has 5 to 7 keels, the mid-lobe is emarginate forming a couple of semi-orbicular lobes, and the .4" [10 m] long column is stout and thick. It is similar to Epidendrum vegae Chocce-Peña & Hágsater which is a short, lithophytic herb, upright leaves, has large red to bright orange flowers with a short .3" [7.5 mm], thin column, 5-veined sepals and petals, the lip 3-lobed with 3 low parallel keels, and a very small, semi-orbicular, entire, mid-lobe. Epidendrum camilo-diazii Hágsater & Chocce-Peña has tall stems to 36" [90 cm], red to bright orange flowers, bilobed, emarginate lip with a single wide, low, fleshy keel, and straight, obovate, emarginated petals, sepals and petals 5-veined. Epidendrum chachapoyarum Chocce-Peña, Hágsater, Acuña-Tarazona & Vega-Vera is terrestrial, has short stems to 7.2" [18 cm], yellow flowers, sepals 3-veined, petals 1-veined, the sub-3-lobed lip is bicallose, the calli elongate, and a thickened rib in between, disappearing before the mid-lobe. Epidendrum aristoloides Hágsater & Dodson has pale pink flowers, the lip cream colored, prominently 4-lobed, the lobes all semi-orbicular, narrow leaves .2 to .32" [5 to 8 mm] wide, and .44 to .54" [11 to 13.5 mm] long sepals. Epidendrum birostratum C. Schweinf. has leaves up to .6" [15 mm] wide, flowers brownish-maroon, column light green, lateral lobes the lip light green, mid-lobe light maroon, 3-lobed, the mid-lobe tridentate at the apex with a prominent 2-lobed callus and one keel, and sepals .56 to .68" [14 to 17 mm] long. Epidendrum aristosepalum Hágsater & Dodson has cream-green to brownish-orange flowers, the column and disc of the lip cream 3lobed with 3 keels and the apical lobe rounded, the leaves .28 to .44" [7 to 11 mm] wide." agsater etal 2013


References W3 Tropicos, Kew Monocot list , IPNI ; Icones Orchidacearum 13 Plate 1308 Hagsater & Santiago 2010 Icones Orchidacearum 13 Plate 1397 Hagsater & Santiago 2010 See recognition section; Icones Orchidacearum 14 Plate 1415 Hagsater & Santiago 2013 See recognition section; * Icones Orchidacearum 14 Plate 1446 Chocce-Peña, Dalström, Hágsater & J.Arnaiz 2013 drawing fide; Icones Orchidacearum 15 [1] Plate 1504 Hagsater & Sanchez 2015 see recognition section; Icones Orchidacearum 15 [1] Plate 1527 Hagsater & Sanchez 2015 see recognition section; Icones Orchidacearum 16[2] Plate 1689 Hagsater & Sanchez 2018 see recognition section; Icones Orchidacearum 16(2) Plate 1699 Hagsater & Jimenez 2018 see recognition section