Epidendrum rocioae Hágsater & Vásquez 2019 GROUP Lanium

Plant and Flower

TYPE LCDP by R. Vásquez & A. Cisneros/Photo by R. Vásques and The AMO Herbario Website

Common Name Rocio's Epidendrum [In honor of Rocío del Pilar Rojas Gonzáles (1968-) born in Iquitos, Loreto, currently living in Oxapampa, a Botanist, specialized in Gesneriaceae, curator at HOXA, who participated in the collection of the type.]

Flower Size .4" [1 cm]

Found in Oxapampa department of Peru in secondary forests at elevations around 1645 meters as a small sized, cool growing epiphyte with simple, thickened, cylindrical, terete, erect pseudobulbs enveloped basally by tubular, non-foliaceous, somewhat inflated sheaths and carrying 2, apical, suberect; blade narrowly elliptic, coriaceous, apex obtuse, margin entire leaves that blooms in the fall on a terminal, peduncle 2" [5 cm] long, thin, terete, short pilose; rachis 7.2" [18 cm] long, terete, straight, short pilose, 9.2" [23 cm] long, apical, paniculate, erect, provided with several short racemes, laxly simultaneously 2 to 6 flowered racemes, each raceme subtended by a narrowly triangular, acute, conduplicate bract .2" [5 mm] long; 24 to 30 flowered overall and carrying non-resupinate, distichous, pale brown flowers with the lip ochre and the fragrance not registered.

"Epidendrum rocioae belongs to the GROUP Lanium which is characterized by rhizomatous plants, the stems cane-like to pseudobulbous, leaves generally aggregate towards the apex, flowers non-resupinate, more or less pubescent, pollinia 2 or 4. The new species is recognized by the cylindrical pseudobulbs, 2 apical, sub-erect, elliptic leaves, inflorescence erect, paniculate; peduncle, rachis and ovaries short, densely pilose, rachis straight, sepals dorsally short pilose, petals narrowly oblong, margin entire, lip entire, base widely cuneate, hexagonal-rhombic, widest near the base, apex short apiculate, margin entire. Epidendrum avicula Lindl. has fusiform-ovoid stems, ovate leaves 1" [2.5 cm] long, the panicle about 2.8 to 4" [7 to 10 cm] long, lanceolate sepals, linear petals, a sub-rhombic lip of .18" [4.5 mm] long, with 2 keels in the disk. Epidendrum berkeleyi (Rolfe) Baptista has linear-oblong stems, 2-3 leaves, oblong, sub-acute, apiculate, an inflorescence about 5-10 cm long, lanceolate sepals, petals linear-filiform, and a lip for 4.8 mm long, ovate, concave, with the base of the disk bidentate. Epidendrum flexuoecallosum Hágsater & E.Santiago has up to 2.6" [6.5 cm] long stems with 3 to 6 elliptic-lanceolate leaves distributed throughout, spreading, linear petals with margins densely ciliate, and an ecallose, 3-lobed lip with two short cunicula at the base." Hagsater etal 2019


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 17(1) Plate 1752 Hagsater & Jimenez 2019 Drawing fide