Epidendrum pachycoleum Hágsater, O.Pérez & E.Santiago 2013 GROUP Kalopternix SUBGROUP Serpens

TYPE Drawing

TYPE Photo/TYPE Drawing by © O Perez and The AMO Herbaria Website

Common Name The Thick Clinandrium Hood Epidendrum

Flower Size .6” [1.5 cm]

Found on the Cordillera Central in Valle de Cauca Department of Colombia in cloud forests on small isolated shrubs at elevations around 3300 to 3600 meters as a mini-miniature sized, cold, rhizomatosus growing epiphyte with aggregate, thickened, forming globose, homoblastic pseudobulbs carrying 1 to 2, apical, not articulate, coriaceous, dark green tinged with violet towards the nargins and underside, juvenile leaves burgundy red, elliptic, acute, margin hyaline, spreading erose leaves that blooms in the early winter on a terminal, without a spathe, sessile, rachis very short, thick, successively 2 to 3 flowered inflorescence with very small, triangular, obtuse floral bracts and carrying resupinate, reddish violet flowers with the column and disc of the lip yellowish red.

"Epidendrum pachycoleum belongs to the 2013 GROUP Kalopternix, which has single to few reddish-brown to purple flowers, often resupinate, the petals narrower than the sepals, lip more or less cordiform, sometimes apically 3- lobed, ecallose, usually with a thickened, low, rounded rib running down the middle, the column short, forming a right angle with the ovary, which is short, and the 2013 SUBGROUP Serpens which has plants with aggregate, globose pseudobulbs with fleshy-coriaceous leaves, and a sessile inflorescence, and one or few fleshy, compact, star-shaped flowers, often burgundy red in color, lip entire, more or less cordiform. The species is recognized by the erect plant, 1 to 2 leaved, aggregate, homoblastic pseudobulbs, elliptic leaves, the apical one often much reduced, sessile flowers, produced in succession, sometimes 2 open at one time, sepals .28 to .29" [7.0 to 7.3 mm] long. Epidendrum serpens Lindl. also has an erect plant, but 2 to 3 leaves per pseudobulb, 4 to 5 simultaneous flowers, leaves ovate-lanceolate, linear-lanceolate petals, the lip subrounded–ovate. Epidendrum platyphylloserpens Hágsater, from Ecuador, has a pendent leaf, oblong-elliptic, acute, with up to 9 flowers opening in succession, several open at one time, the sepals are 5-veined, .34" [8.5 mm] long. Epidendrum pachacuteqianum Hágsater & Collantes, from Peru, has a single erect leaf per stem, small, successive, non-resupinate flowers, sepals .24 to .32" [6 to 8 mm] long, the margin of the lip and petals minutely papillose." Hagsater etal. 2015


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 14 Plate 1466 Hagsater, Perez & Santiago 2015 drawing fide; Orchids of the Department of Valle De Cauca Colombia Vol 2 Kolanowska, Hagsater etal. 2014 drawing/photo fide; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 photo fide; Icones Orchidacearum 17(1) Plate 1713 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 17(1) Plate 1733 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 17(2) Plate 1761 Hagsater & Jimenez 2020 see recognition section; Icones Orchidacearum 17(2) Plate 1800 Hagsater & Jimenez 2019 see recognition section;