Epidendrum integrinanum Hagsater 2019 GROUP Nanum SUBGROUP Nanoecallosum


TYPE LCDP photo by R. Jiménez M. & A. Cisneros/Photo by R Jimenez M. and The AMO Herbario Website


Common Name The Entire E Nanum Epidendrum [in reference to the nearly entire, triangular lip with the basal corners forming very small sub-orbicular lobes, distinct from most species in this group which have prominent lateral lobes, except for Epidendrum nanosimplex]

Flower Size .6" [1.5 cm]

Found in Zamora-Chinchipe province of Ecuador in wet Andean montane forest, on slopes of Andean Tepui at elevations around 1600 meters as a mini-miniature to small sized, cool growing epiphyte with simple, cane-like, laterally compressed, straight, the new stem originating from a middle to sub-apical internode of the previous stem, or pendent with new stems produced sub-apically from previous stem, gradually becoming slightly thinner and shorter stems carrying 8 to 12, aggregate along the stem, green concolor, alternate, articulate, spreading, unequal in size, the basal one generally larger, sub-coriaceous, twisted at the base so as to be in the same plane as the stem; sheaths tubular, laterally compressed, light green; blade widely lanceolate, acute, margin entire leaves that bloom in the eary spring and early fall on a terminal, peduncle reduced, laterally compressed, straight, light green; rachis .2" [5.0 mm] long, short, laterally compressed to terete, thick, straight, 1.08" [2.7 cm] long, racemose, sub-umbellate, straight, simultaneously 6 to 8 flowered inflorescence witth almost the same length as the ovary, decreasing towards the apex, ovate-triangular, acute, margin slightly dentate, light green floral rbacts and carrying resupinate, white flowers with the lip with light green overtone, column green; without any apparent fragrance.

"Epidendrum integrinanum belongs to the GROUP Nanum SUBGROUP Nanoecallosum, which is characterized by the Dichaea like pendent stems, the inflorescence produced by pairs of opposite flowers, without spathaceous bracts, but with prominent floral bracts. The subgroup differs in the simple, entire lip. The new species is recognized by the large plants (about ca.2.4 to 12" [6 to 30 cm] long), widely lanceolate leaves, green concolor, the ovate-triangular floral bracts, white with green tone flowers, resupinate, with dorsal sepal oblanceolate, and lateral sepals oblanceolate-elliptic .372 to 3.84" x .1 to .104" [9.3 to 9.6 x 2.5 to 2.6 mm] and petals linear, by the small sub-entire lip, .16 x .1" [4.0 x 2.5 mm], the mid-lobe triangular (longer than wide) and the lateral lobes very reduced, hemi-orbicular and redounded. Epidendrum nanosimplex Hágsater & Dodson, has short plants growing horizontally on the underside of the branches, also has an entire lip, .12 x .6 to 1.12" [3.0 x 1.5 to 2.8 mm], ovate, base truncate, obtuse, revolute, convex, fleshy; calli sub-globose, prominent, with a ventral low, wide keel running from the calli to the apex of the lip, slightly longer than wide. Epidendrum bonitense Hágsater & Dodson with grayish-green, ovate leaves, somewhat oblique, sub-coriaceous-succulent, flowers glaucous-green with a faint purple tinge, sepals obovate 4 to 5 veined, and deeply 3-lobed lip, lateral lobes obliquely ovate, and the mid-lobe sub-rectangular." Hagsater etal 2019


References W3 Tropicos, Kew Monocot list , IPNI ; * Icones Orchidacearum 17(1) Plate 1729 Hagsater & Jimenez 2019 drawing fide; Icones Orchidacearum 17(1) Plate 1732 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 17(1) Plate 1755 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 17(1) Plate 1782 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 18(1) plate 1826 2020 see recognition section