Epidendrum posadarum Hágsater 2001 GROUP Megalospathum SUBGROUP Tigriphyllum

Another Angle in situ Ventanas Jardin Antioquia 5/14

Plant and Flowers in situ Ventanas Jardin Antioquia 5/14

Photos by © Jay Pfahl

TYPE Drawing

TYPE Drawing by © R Jimenez M and The AMO Herbaria Website


Original Drawing by © Padre Pedro Ortiz Conserved at the Herbario de la Universidad Javeriana, Bogota Colombia

Common Name Posada's Epidendrum [Colombian Nurserymen current]

Flower Size .8" [2 cm]

Found in Antioquia department of Colombia at elevations of 2600 to 2800 meters in elfin cloud forests as a miniature to small sized, cold growing, pendant epiphyte with laterally compressed stems each arising from the base of the previous stem and enveloped completely by evanescent, imbricating, foliaceous sheaths and carrying articulate, narrowly lanceolate, acute, succulent, grayish-green, transversely barred with purple leaves that blooms in the spring, summer and fall on a terminal, short, hanging, simultaneously 2 flowered inflorescence arising through a semi-ovate, obtuse, acuminate spathe and a similar apical bract and carrying light green flowers with the ovary and column dotted with purple.

"Epidendrum posadarum belongs to the GROUP Megalospathum SUBGROUP Tigriphyllum, recognized by the prominent spathe, few, resupinate flowers, the column united to the lip. The species is recognized by the grayish-green, pendant plants with purple bars across the leaves, semiovate spathe, grayish-green flowers, the column and ovary dotted with purple, lip cordiform with entire margin, and linear, 3-veined petals. Epidendrum calacaliense Hágsater & Dodson has yellow flowers, a reniform, bicallose lip and the nectary does not penetrate the ovary which is therefore not swollen. Epidendrum escobarianum Garay has larger flowers, and a glossy, deep red acuminate lip. Epidendrum stanhopeanum has somewhat larger flowers, the sepals .52 x .2" [13 x 5 mm] and the reniform lip .4 x .6" [10 x 15 mm]; it was collected around Ocańa in northeastern Colombia (no specimen has been found, the type was apparently destroyed). Epidendrum platypetalum Hágsater has very wide petals .74 x .3" [18.5 x 7.7 mm] and a short column and the lip has two small, globose calli and a ventral low keel." Hagsater etal 2001


References W3 Tropicos, Kew Monocot list , IPNI ; Icones Orchidacearum 4 Plate 424 Hagsater 2001 see recognition section; Icones Orchidacearum 4 Plate 472 Hagsater 2001 see recognition section; * Icones Orchidacearum 4 Plate 474 Hagsater & Sanchez 2001 drawing fide; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 drawing/photo fide; Icones Orchidacearum 18(1) plate 1829 2020 see recognition section