Epidendrum chloronanum Hágsater & Cisneros 2019 GROUP Nanum

TYPE DrawingTYPE Photo/TYPE Drawing by © R Jimenez and AMO Herbaria Website

LATE

Common Name The Dwarf Green Epidendrum

Flower Size .6" [1.5 cm]

Found in Azuay province in southern Ecuador at elevations around 2000 meters as a mini-miniature sized, cool to cold growing epiphyte with new stems horizontal to pendulous, produced from the base of the previous stem in older plants, laterally compressed, ancipitose, thicker towards the apex stems, completely covered by evanescent, imbricating, foliaceous sheaths and carrying 6 to 11, articulate, unequal, progressively larger towards the apex, evenly distributed throughout the stems, succulent; sheaths tubular, strongly laterally compressed, ancipitose; blade ovate-lanceolate, acute, twisted so as to be on the same plane as the stem, spreading leaves that blooms in the spring on a terminal, peduncle reduced, .68 to .8" [1.7 to 2.0 cm] long, apical, sessile, simultaneously 2 to 4 flowered inflorescence with decreasing, ovate-triangular, acute floral bracts and carrying resupinate, greenish brown flowers with the lip and column light green, anther purple; fragrance none registered.

"Epidendrum chloronanum belongs to the GROUP Nanum, which is characterized by the Dichaea-like horizontal or pendulous stems, the inflorescence produced by pairs of opposite flowers without spathaceous bracts, but with prominent floral bracts. The new species is recognized by the flowers greenish brown, lip and column light green, anther purple larger floral segments (ca. .28 to .36" [7.0 to 9.0 mm] long, ovary inflated ventrally from the base, lip 3-lobed with a rectangular, acute mid-lobe, and the lateral lobes of the lip semiovate, about 3/4 of the length of the mid-lobe. Epidendrum leuconanum has apical and axillary, short, racemose, sessile inflorescences, a short peduncle to .6" [1.5 cm] long all covered with bracts, a rachis about 1.12" [2.8 cm] long, pale greenish white flowers, a straight column with a prominent, 3-lobed, dentate clinandrium-hood. Epidendrum tingo-mariae Hágsater has a short racemose inflorescence .6" [15 mm] long, ovary not inflated, a short nectary that does not penetrate behind the perianth, short sepals and petals .18" [4.5 mm] long and .14" [3.5 mm] long, respectively), and lip 3-lobed with a sub-triangular mid-lobe and lateral lobes about 1/3 of the length of the mid-lobe. Epidendrum vesicinanum Hágsater & L.Valenz. is easily distinguished by smaller lateral lobes of the lip, a lanceolate mid-lobe, an inflated pedicellate ovary just behind the perianth forming a rounded vesicle. Epidendrum integrinanum Hágsater, from the Cordillera del Cóndor in Ecuador, has large, caespitose plants (about ca. 2.4 to 12" [6 to 30 cm] long, widely lanceolate leaves, with cream-greenish tone flowers and a small sub-entire lip, .16 x .01" [4.0 x 2.5 mm], mid-lobe triangular (longer than wide) lateral lobes much reduced, hemi-orbicular and rounded. Epidendrum bonitense Hágsater & Dodson has long plants 4 to 12" [10 to 30 cm], stems horizontal to pendulous, flowers glaucous green with a faint purple tinge, ovary .48" [12 mm] long, long sepals and petals .48 [12 mm] and .4" [10 mm], respectively, a 3-lobed lip .2" [5 mm] long, mid-lobe subrectangular, and 2 prominent, globose calli." Hagsater etal 2019

SynonymsReferences W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 17(1) Plate 1711 Hagsater & Jimenez 2019 drawing/photo fide

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