Epidendrum jatunsachanum Dodson & Hágsater 1994 GROUP Jatunsachanum

Photo by Ecuagenera and their Ecuadorian Orchid Webpage

TYPE Drawing

TYPE Drawing by © Dodson & Hagsater

Part shadeHot Cool FallSpring

Common Name The Jatun Sacha Epidendrum [A River in Ecuador]

Flower Size 1.2" [3 cm]

Found in Ecuador on the eastern slope of the Andes at elevations of 400 to 1600 meters as a medium sized, hot to cool growing epiphyte with simple, cane-like, erect, somewhat laterally compressed basally, ancipitose towards the apex stems enveloped basally by tubular, non-foliaceous sheaths and carrying 6 to 11, along the upper 2/3's of the stem, alternate, subcoriaceous, oblong-elliptic, entire marginally, acuminate, minutely apiculate, articulate below into the base leaves that blooms in the fall through spring on a terminal, racemose, laterally compressed, ancipitose, elongate, erect, 3" [7.5 cm] long, successively single, few flowered inflorescence which is pluriracemose or blooming for years out of the same peduncle, with 6 tubular, somewhat imbricating bracts and much shorter than the ovary, triangular, acute, amplexicaul floral bracts and carrying non-fragrant flowers.

"Epidendrum jatunsachanum belongs to the GROUP Jatunsachanum , which is recognized by the caespitose habit, numerous narrow leaves, apical inflorescence in young stems, and lateral inflorescences in mature plants of some species, the inflorescences producing new racemes through time, the lip with margins fimbriate, and the obovoid, not “bird-wing” type pollinia. The species is recognized by the oblong-elliptic leaves, 3.4 to 4.8" x .64 to .8" [8.5 to 12 x 1.6 to 2 cm]; apical inflorescence producing successive flowers, one at a time, the white lip with purple spots on the disc, margin fimbriate. Epidendrum hajekii R.Vásquez & Dodson has linear-lanceolate leaves 3.8 to 4" x .278 to .4" [9.5 to 18 x 0.7 to 1 cm]; the apical and lateral inflorescence generally 2-flowered, the flowers simultaneous. Epidendrum ilense Dodson has narrowly elliptic leaves 3.6 to 7.2 x .6 to 1.6" [9 to 18 x 1.5 to 4 cm]; a sub-capitate apical and lateral inflorescences with few simultaneous flowers, the lip entire, immaculate with the margin long-fimbriate. Epidendrum pseudopaniculatum Dodson has apical and lateral, racemose inflorescences with numerous simultaneous greenish white flowers, the lip with 5 purple lines on the keels of the disc, pollinia “bird-wing” type.


References W3 Tropicos, Kew Monocot list , IPNI ; *Orquideología Vol 19 #2 pg 38-44 1994 Dodson & Hagsater drawing fide; Native Ecuadorian Orchids Vol 2 Dodson 2001 drawing fide; Icones Orchidacearum Vol 8 Plate 846 Hagsater & Sanchez 2006 see recognition section; Icones Orchidacearum 9 Plate 945 Hagsater 2007 see recognition section; Icones Orchidacearum 13 Plate 1342 Hagsater 2010 drawing fide; Icones Orchidacearum 16[1] Plate 1645 Hagsater & Sanchez 2018 see recognition section; Icones Orchidacearum 18(1) plate 1821 2020 see recognition section