Epidendrum hornitense Hágsater & L.Sánchez 2006 GROUP Ramosum SUBGROUP Rugosum

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

Part shade CoolLATESummer

Common Name The Rio Hornito Epidendrum [a river in western Panama]

Flower Size .6" [1.5 cm]

Found in western Panama near the Fortuna Dam at elevations of 1000 to 1200 meters as a small sized, cool growing epiphyte with a branching, monopodial, cane-like, terete stem with the main stem tall with secondary stems which branch into very short tertiary flowering branches all carrying numerous on the main stem, 6 to 8 on the secondary and 1 to 2, one half sized ones on the tertiary or flowering stems, articulate, linear-elliptic, obliquely bilobed leaves that blooms in the later summer on an apical, from the secondary and tertiary stems, racemose, distichous, erect to arching, peduncle very short, rachis zigzag, .6 to .8" [1.5 to 2 cm] long, simultaneously 2 to 6 flowered inflorescence with conduplicate, ovate, obtuse to acute floral bracts and carrying nonresupinate flowers.

"Epidendrum hornitense is part of GROUP Ramosum characterized by the monopodial, branching stems, the spike-like, distichous inflorescence, and the single callus, and the SUBGROUP Rugosum which has a branching habit with few-flowered inflorescence from short, secondary stems, the leaf-sheaths rugose. The species has terete stems, 3-veined, lanceolate, acuminate sepals, linear, 3-veined petals with the lateral veins shorth a narrowly triangular, acute lip, cordate basaIy and fleshy thickened towards the apex. It is similar to Epidendrum monophlebium Hagsater from central Costa Ri ca which has similarly small flowers, single veined petals, the lip tru cate at the base, apically acuminate and not fleshy thickened. Epidendrum sanchoi Ames has white to greenish white, somewhat larger flowers with sepals .18 to .26" [4.5 to 6.5 mm] long, 5-veined, acute sepals with a prominent dorsal, apical keel, and the triangular-acuminale lip .16 to .2" [4 to 5 mm] long, ecallose, the dlsc with 3 thickened nerves. Epidendrum orthodontum Hágsater & L.Sánchez, has larger flowers, the 5-veined sepals .36 to .48" [9 to 12 mm] long, a 3-lobed lip .28 to .36" [7 to 9 mm] long, and a thlck column with an erect apical tooth and a pair of lateral subquadrate wings." Hagsater etal 2006


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 8 Plate 841 Hagsater & Sanchez 2006 drawing fide