Epidendrum angulatum Hagsater & J Duarte 2021 GROUP Amphyglottis SUBGROUP Glossaspis

TYPE LCDP Photo by © : R. Jiménez M. & A. Cisneros and Icones Orchidacearum 18(2) Plate 1855 Hagsater & Jimenez 2021 and the AMO Herbaria Website

Common Name The Strongly Angled Epidendrum [refers tothe callus which has 2 pairs of obtuse angles on each side, the apex being an acute point and the base truncate]

Flower Size 1.4" [3.8 cm]

Found in Huila and Caqueta departments of Colombia at elevations around 2000 meters as a large sized, cool to cold growing epiphyte with simple, cane-like, slightly sinuous, terete, and slightly compressed towards the apex, thin, basal half covered by non-foliar sheaths, erect stems carrying 8 to 13, distichous, articulate, along the apical half of the stem, elliptic-lanceolate, rounded to unequally bilobed apically, coriaceous, smooth, medium green, margins entire leaves that blooms in the winter and again in the summer on an erect, without a spathe, peduncle, 12 to 15.6" [30 to 39 cm] long, elongate, straight, provided with 6 to 8, yellow with brown dots, scarious, striated, papyraceous, imbricate, acuminate bracts, rachis 2.8 to 4" [7 to 10 cm] long, racemose to pluriracemose, new racemes produced from the upper nodes of the peduncle, cylindrical to sub-spherical, successively, 4 to 17, to 25 flowered inflorescence with tringular, acuminate, embracing, decreasing in length, much shorter than the ovary floral bracts and carrying non resupinate flowers.

"Epidendrum angulatum belongs to the GROUP Amphyglottis SUBGROUP Glossaspis , which is recognized by the caespitose habit, simple stems, leaves oblong-lanceolate, coriaceous, bilobed, the elongate peduncle of the erect, racemose inflorescence, the flowers non-resupinate, the callus simple, elongate, fleshy, sulcate towards the base. The new species is recognized by non-resupinate, lilac flowers and the large white callus on the lip, sepals .692 to .8" x .192 to .2" [17.3 to 20.0 x 4.8 to 5.0 mm], oblanceolate, petals .68 to .76" [17-19 mm] long, elliptic-lanceolate, and the callus massive, prominent, formed by an angulate plate, the apex acute reaching the middle of the mid-lobe, the sides forming two pairs of obtuse angles, the lip base truncate, with a pair of digital, bilobed calli on the sides and the main central callus body, and the lip mid-lobe triangular, acute, with an entire margin to flabelliform, the lateral margins strongly revolute, distal margin short fimbriate. It is similar to Epidendrum vinosum Schltr., but that species has fuchsia-colored flowers, the sepals and petals more oblong and wider near the obtuse apex, and the mid-lobe of the lip is oblong, apically obtuse. Epidendrum hookerianum Rchb.f. has 1" [25 mm] long tepals, the lip with 4 elongate lines forming the callus, lateral lobes semi-ovate, deeply fimbriate towards the apex of the interior margin, and the mid-lobe linear-lanceolate, margin sub-dentate. Epidendrum glossaspis Rchb.f. has pink-purple flowers with a large white callus, sepals 1 to 1.32" [26 to 33 mm] long, petals straight, linear-triangular, 1 mm wide, and the lateral lobes of the lip approximately half as long as the whole lip, rhombic, acuminate. Epidendrum blepharoclinium Rchb.f. has pink-violet flowers with a white callus, the lateral lobes of the lip approximately half as long as the whole lip, sub-rhombic, acuminate. The general outline of the lip is quite similar to that of pidendrum acutilobum Hágsater & Uribe-Vélez, but that species has smaller pale pink-red flowers and a wide truncate callus." Hagsater etal 2021

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 18(2) Plate 1855 Hagsater & Jimenez 2021 drawing/photo fide

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