Epidendrum caurense Carnevali & G.A.Romero 1992 GROUP Amblostoma SUBGROUP Amblostomioides

TYPE Drawing by Carnevali & G.A.Romero and The Epidendra Website

LATER

Common Name The Rio Caura Epidendrum [A river in Venezuela]

Flower Size .6" [1.5 cm]

Found in Bolivar state of Venezuela in rainforests at elevations around 300 meters as a medium sized, hot growing epiphyte with cane-like, terete, simple stems carrying 15 to 25, in the upper half, linear-elliptic, acute, ascending in youth, drooping with age leaves that blooms in the later spring on a terminal, paniculate, slender, somewhat divaricate branches, 10 to 12" [25 to 30 cm] long including the 3.2" [8 cm] long, terete, glabrous peduncle, rachis with scattered, irregular, moniliform hairs, simultaneously many flowered inflorescence with glabrous, ovate, obtuse, shorter than the ovary floral bracts.

Similar to E lanipes and E purum , but E caurense has a different shape to the midlobe of the lip and has a different callus.

"Epidendrum caurense Carnevali & G. Romero belongs to the GROUP Amblostoma SUBGROUP Amblostomioides which is characterized by the caespitose habit, the thinly fusiform stems with narrow, apically bilobed, subcoriaceous leaves distributed along the apical half of the stems, an often large, apical, erect, paniculate inflorescence, greenish-yellow to white flowers, the ovary and the sepals usually dorsally pubescent, and the lip 3-lobed. The species is recognized by the sepals .28" [7 mm] long, pale yellow-green flowers, a straight column, and an oblong midlobe. Epidendrum elephantinum has strongly pubescent ovaries and sepals (dorsally), the strongly arched column, with the humped clinandrium hood, the small flowers with sepals .2 to .264" [5.0 to 6.6 mm] and the bell-shaped midlobe with the lateral margins revolute and the whole upturned so as to look like an elephant's trunk. It closely resembles Epidendrum pubiflorum from the Amazonian slope in Peru, which has oblong, apically rounded, bilobed leaves, larger flowers sepals .36 to .44" [9 to 11 mm], and the petals .08" [2 mm] wide. Epidendrum lanipes Lindl. has larger sepals .4 to .48" [10 to 12 mm] long, white, strongly fragrant flowers, a straight column, and large, sturdy stems with leaves .68 to 1" [17 to 25 mm] wide. Epidendrum purum Lindl. has glabrous ovaries and sepals, sepals .24 to .28" [6 to 7 mm] long and an arched column. Epidendrum hartii Rolfe has glabrous ovaries and sepals which are .28 to .32" [7 to 8 mm] long, and a straight column." Adapted from Plate 734 Hagsater etal 2004

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; *Novon 2(4): 312-314 Carnevali & G.Romero 1992 drawing fide; Flora of the Venezuelan Guayana Vol 7 Steyermark, Berry, Yatskievych and Holst 2003; Icones Orchidacearum 7 Plate 734 Hagsater and Sanchez 2004 see recognition section; Orquideas, Tesoro de Colombia Vol 2 Ortiz & Uribe 2017 drawing fide;

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