Epidendrum atrorugosum Hágsater 1999 GROUP Ramosum SUBGROUP Rugosum TYPE Drawing © by Hagsater and The Epidendra Website


Common Name The Dark "Rugosum” Epidendrum [refers to the dark purple flower similar to E rugosum]

Flower Size .8" [2 cm]

Found in Costa Rica at elevations around 2200 to 2700 meters as a medium sized, cold growing epiphyte with flexuous, glabrous where nude stems the primary, long, producing secondary branches from the internodes, which in turn produce very short, flowering branches and these produce new successively flowering branches from the subapical nodes carrying numerous per stem, 2 to 3 per flowering branch, oblong, unequally bilobed, basally clasping leaves that blooms in the winter through summer on a terminal, from the flowering branches, racemose, occuring only once, erect, distichous, flexuous .4” [1 cm] long, 2 to 4 flowered inflorescence with shorter than the ovary, acute floral bracts and carrying purple flowers.

This species is distinguished by the purple plant with purple, successive flowers with acuminate sepals that are .36 to .4" [9 to 10 mm] long, the tepals are free, erect and three nerved, the length of the lip is about 2 times the width of the defexed column that forms a 90' angle in respect to the ovary.


References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Orchidacearum 3 Plate 309 Hagsater & Sanchez 1999 drawing/photo fide; Manual de las Plantas de Costa Rica Vol 3 Hammel, Grayum, Herrera and Zamora 2003; Orchids of Costa Rica Vol 3 Morales 2009 photo fide;