IOSPE PHOTOS

Epidendrum dermatanthum Kraenzl. 1905 GROUP Macrostachyum SUBGROUP Macrostachyum

Photo Š by Lazaro Santa Cruz and The Plantas de Pulan Website

Drawing by Š Jimenez, Hágsater & E.Santiago and The AMO Herbario Website

LATE

Common Name or Meaning The Thick Skin Epidendrum [refers to the thick fleshy floral segments of the flower]

Flower Size 1.2" [3 cm]

Found in Ecuador and Peru on the Amazon slope of the Cordillera Oriental in wet cloud forests on steep banks at elevations around 1900 to 3600 meters as a giant sized, cold growing terrestrial with erect, cane-like, stout becoming slender above, branching profusely towards the apex, branches short, leafy throughout the apical 2/3's of the stems and carrying numerous, linear, acute apically, margin entire leaves that blooms in the late fall and spring on a few to several, terminal, occuring only once, on the short branches, racemose, to 4.4 to 5.6" [11 to 14 cm] long overall, rachis 4 to 5.2" [10 to 13 cm] long, helicoid shaped, successively to 15 to 17 flowered inflorescence with much longer than the ovary, acuminate, conduplicate floral bracts and carrying reddish brown, non-resupinate flowers.

"Epidendrum dermatanthum belongs to the GROUP Macrostachyum SUBGROUP Macrostachyum , which is characterized by the monopodial plants with sub-apical branching, rugose leaf sheaths, large leaves generally spreading, racemose, erect inflorescence, and fleshy flowers generally green to black (ripe olive colored), as well as yellow to pink to purple, with an entire, conduplicate, generally ecallose and pubescent lip embracing the column, and the nectary pubescent to papillose in front of the stigmatic cavity and at least at the base of the lip. The species is recognized by the large, linear-oblong leaves 3.4 to 7.2" x .68 to 1.6" [8.5-18 x 1.7-4 cm], the inflorescence 4.4 to 5.6" [11 to 14 cm] long with the rachis straight, flowers successive, reddish brown, sepals .6 to .72" [15 to 18 mm] long, spreading, with the apex acuminate. Epidendrum bangii Rolfe has lanceolate leaves 2 to 5.6" x .6 to .96" {5 to 14 x 1.5 to 2.4 cm], lax, few-flowered inflorescence, rachis slightly flexuous, petals linear, oblique. Epidendrum rostrigerum Rchb.f. has shorter, oblong-elliptic leaves 1 to 3.6" x .44 to 1.2" [2.5 to 9 x 1.1 to 3 cm], a 3.6" {9 cm] long inflorescence, flowers green tinged with reddish, sepals .4" [10 mm] long, the dorsal one spreading and the lateral ones partly spreading, the anther has a rostrate apex which extends beyond the apex of the column. Epidendrum probosantherum Hágsater has green flowers with purple spots, sepals .4 to .48" [10 to 12 mm] long, the apex acute, the lip deltate and the anther also long, rostrate. Epidendrum chondrochilum syn Epidendrum macrostachyum Lindl. has lanceolate-elliptic leaves 3 to 5.2" [7.5 to 13 cm] long, a pyramidal inflorescence 6.4 to 12" [16 to 30 cm] long, with dark olive-brown flowers, sepals .44 to .46" [11.0 to 11.5 mm] long, and apically sub-obtuse." Hagsater etal 2015

Synonyms

--------------------------------------------------------------------------------------------------------------------------