Epidendrum macuchiense Hágsater & E.Santiago 2015 GROUP Arbuscula SUBGROUP Incomptum

LCDP Photo by H. Medina & A. Cisneros and Icones Orchidacearum 18(2) Plate 1882 Hagsater & Jimenez 2021

TYPE Drawing

TYPE Drawing by © O Perez and The AMO Herbaria Website

Common Name The Macuchi Epidendrum [A town in Cotopaxi Ecuador]

Flower Size 1.2” [3 cm]

Found in the province of Cotopaxi Ecuador at elevations around 800 to 1500 meters as a small sized, cool growing epiphyte with cane-like, simple, straight, terete, the new stem arising from the middle internode of the previous stem carrying 4, clustered towards the apex of the stem, alternate, articulate, erect-spreading, subcoriaceous, lanceolate, acute, margin entire leaves that blooms in the winter on a terminal, occuring only once, racemose, arching, peduncle thin, somewhat laterally compressed, ancipitous, straight, rachis laterally compressed, thin, straight, 2.4” [6 cm] long, simultaneously about 12 flowereed inflorescence with about half as long as the ovary, triangular, acuminate floral bracts and carrying resupinate, green flowers.

"Epidendrum macuchiense belongs to GROUP Arbuscula SUBGROUP Incomptum which is characterized by the successive lateral growths produced from the middle of the previous growth, few leaves aggregate towards the apex of the stems, a short apical inflorescence with fleshy greenish to violet-green flowers with short ovaries, the lip entire to 3-lobed. The species is recognized by the green flowers, the deeply 3-lobed lip, twice as wide as it is long, .346 x .66" [8.6 x 16.1 mm], the lateral lobes semi-orbicular, and the quadrate-cuneate, emarginate mid-lobe, and the thin, linear-oblanceolate petals .43 x .04" [10.8 x 1 mm]. It resembles Epidendrum homoion Hágsater & Dodson, has a very similar shaped lip .56 to .64" x 1.04 to 1.12" [14 to 16 x 26 to 28 mm], but has obtrullate petals which are much wider .34 x ,24 to .26" [8.5 x 6.0 to 6.5 mm]; the sepals and petals are green and the lip olive-green to purplish green. Epidendrum boekei Hágsater also has a 3-lobed lip, but it is nearly as long as it is wide, .44 to .56 x .56 to .72" [11 to 14 x 14 to 18 mm], the lateral lobes are slightly retrorse, petals narrowly oblanceolate, apex rounded .46 x .12 to .24" [11.5 x 3 to 6 mm], and the calli are narrower and divergent. Epidendrum oenochromum Hágsater & Dodson has burgundy-red colored flowers, the lip is proportionately wider than long, .4 x .56" [10 x 16 mm], but the lateral lobes are orbicular, and petals oblong, .468 x .088" [11.7 x 2.2 mm]." Hagsater etal 2015

Epidendrum marioi Zambrano & Hágsater has oblong-elliptic leaves, an ovary about .6 to .64" [15 to 16 mm] long, furrowed ventrally, the sepals oblanceolateelliptic, 3-veined, the petals with one vein with two lateral branches, a lip with lateral lobes obliquely and widely sub-orbicular, the midlobe larger, about .22 to .24 x .092 to .116" [5.5 to 6.0 x 2.3 to 2.9 mm], and a shorter column, .28 to .308" [7.0 to 7.7 mm] long. Hagsater etal 2021


References W3 Tropicos, Kew Monocot list , IPNI ; *Icones Orchidacearum 15 [1] Plate 1537 Hagsater & Santiago 2015 drawing fide; Icones Orchidacearum 16[2] Plate 1675 Hagsater & Sanchez 2018 see recognition section; Icones Orchidacearum 16[2] Plate 1688 Hagsater & Sanchez 2018 see recognition section; Icones Orchidacearum 17(1) Plate 1784 Hagsater & Jimenez 2019 see recognition section; Icones Orchidacearum 18(2) Plate 1882 Hagsater & Jimenez 2021 LCDP Photo/photo fide; Icones Orchidacearum 18(2) Plate 1891 Hagsater & Jimenez 2021 see recognition section