Epidendrum roezlii Hágsater 2016 GROUP Alpicolum SUBGROUP Alpicolum

TYPE Drawing

TYPE Photo © S. Monsalve/TYPE Drawing by © R Jimenez M and The AMO Herbaria Website

Common Name Roezl's Epidendrum [Czech Orchid Collector 1800's]

Flower Size .6" [1.5 cm]

Found in Antioquia and Tolima departments of Colombia at elevations of 2100 to 2700 meters as a small sized, cold growing, caespitose epiphyte with cane-like, laterally compressed, erect, straight stems carrying articulate, alternate, sub-coriaceous, lanceolate, acute, margin entire, spreading leaves that blooms in the fall on a terminal, with a single, tubular, conduplicate, obtuse spathe, racemose, slightly arched, peduncle 3.2" [8 cm] long, laterally compressed, erect, straight, nearly totally hidden by the spathe; apically provided with a pair of embracing, linear-oblong, acute bracts, densely simultaneously 40 flowered inflorescence with prominent, almost as long as the ovary, linear-triangular, acuminate, clasping floral bracts and carrying resupinate flowers.

Epidendrum roezlii belongs to the GROUP Alpicolum SUBGROUP Alpicolum which is characterized by the simple, canelike stems, 1-2 long, narrow, spathaceous bracts, fox-tail-like inflorescence and numerous flowers with fleshy lip, triangular midlobe and roundish lateral lobes. The species is recognized by the lanceolate leaves, sepals greenish, acute, .28 to .32" x .88 to 1.2" [7 to 8 x 2.2 to 3.0 mm], lip apricot colored, the lateral lobes ovate with the margin denticulate. Epidendrum tequendamae F.Lehm. & Kraenzl. has narrower, longer, linear-lanceolate leaves, the flowers are similar in size and proportionately narrower, sepals .32 to .34" x .08 to .92" [7.6 to 8.5 x 2.0 to 2.3 mm] long, elliptic to linear-lanceolate, falcate petals, the lip callus somewhat shorter, and the margin of the lateral lobes entire; column has very prominent, long column wings which are rounded and notched above, with the clinandrium-hood very short, reaching only half the column length. Epidendrum anthoceros Rchb.f. has oblong leaves, spreading sepals .4 to .44" [10 to 11 mm] long, lateral lobes of the lip erose-denticulate, mid-lobe linear-triangular, short acuminate. Epidendrum aenigmaticum Hágsater & Dodson has small flowers, ochre-orange colored inside, lateral sepals .27 to .3" [6.8 to 7.5 mm] long, transversely ovate-elliptic lateral lobes of the lip are upright, with margin entire, and mid-lobe is short and wide." Hagsater etal 2016


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 15 [2] Plate 1596 Hagsater 2016 drawing fide; Icones Orchidacearum 15 [2] Plate 1597 Hagsater & Sanchez 2016 see recognition section; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 photo fide; Icones Orchidacearum 16[2] Plate 1672 Hagsater & Sanchez 2018 see recognition section; Icones Orchidacearum 17(2) Plate 1776 Hagsater & Jimenez 2020 see recognition section;