Habenaria casillasii R.González & Cuev.-Fig. 2010

TYPE Drawing by Jorge Roberto González Tamayo and Las Orquideas del Occidente de Mexico Vol 1 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010

LATE

Common Name Casillas' Habenaria [Secundino González Casillas Mexican Orchid Enthusiast current]

Flower Size

Found in Jalisco state of Mexico in a pine forest ravine, in the shade of the trees, around 2,200 meters as a small sized, cold growing terrestrial with a descending, ellipsoid, inconspicuously rugose tuber giving rise to an erect, thin, leafy throughout stem carrying 8 to 9, the first three reduced to sheathing, the upper 6 produce a blade, the largest located in the middle part of the plant, slightly convex, retroflex and twisted, rounded, elliptical-lanceolate to lanceolate, acuminate, .48 to 1.16" [1.2 to 2.9 cm] long,.36 to .6" [0.9 to 1.5 cm] wide, green, furrowed, the carinas correspond to the three main nerves, decurrent in the sheath and stem, the lepidot surface, the hyaline margins, serrulate; infundibuliform sheath leaves that blooms in the late summer on an erect, terminal, slightly sinuous, striated and angular, 2.4" [6 cm] long, clustered cylindrical, lax, eleven flowered inflorescence with ascending, somewhat twisted and conduplicated, with the revolute sides, in the first flowers exceeding the ovary, in the latter it is shorter, ovate-lanceolate, acuminate, up to of green color, trinerved, the loose reticulum, with a conspicuous carina, the margins and keel serrulate, hyaline. floral bracts.

"Habenaria casillasii is related to Habenaria zamudioana and is differentiated in the erect, shallow concave, triangular-ovate, subobtuse dorsal sepal; the posterior petal Segment triangular-sigmoid, .18" [4.5 mm] long, .036" [0.9 mm] wide; the lateral lobes of labellum divaricate, flat, linear, acute, .36" [9 mm] long, .02" [0.5 mm] wide; arcuate, linear, orthogonal middle lobe .34" [8.5 mm] long, .036" [0.9 mm] wide; a slim, linear-cylindrical nectary, .44" [11 mm] long, .048" [1.2 mm] wide; the column trapeziform profile view, in front view oblate and succulent, subsquare, rounded, truncated stellidia. In Habenaria zamudioana the dorsal sepal ends in a mucron; the triangular, falcated posterior petal segment is .18 to .32" [4.5 to 8 mm] long, .032 to .044" [0.8 to 1.1 mm] wide; the lateral lobes of labellum arcuate, with the distal part more or less ascending, from .24 to .48" [6 to 12 mm] long, .02 to .024" [0.5 to 0.6 mm] wide; the middle lobe oblong-triangular, acute, .24 to .52" [6 to 13 mm] long .032 to .04" [0.8 to 1mm] wide; the column tapered in side view, subsquare in front view and narrower and more tuberculous stelidia, are among the most obvious details." Jorge Roberto González Tamayo y Lizbeth Hernández 2010

Synonyms

References W3 Tropicos, Kew Monocot list , IPNI ;

* Las Orquideas del Occidente de Mexico Vol 1: 130 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010 drawing fide;

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