Habenaria magnibracteata R.González & Cuev.-Fig. 2010
TYPE Drawing by J. R. González and Las Orquideas del Occidente de Mexico Vol 1 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010
LATE
Common Name The Large Bracted Habenaria
Flower Size
Found in Jalisco state of Mexico in pine and oak forest between rocks, in soil of volcanic origin; at elevations around 2700 to 2,900 meters as a small sized, cold growing, inconspicuous terrestrial with a vertical, ellipsoid tuber giving rise to an erect, light green different than the leaves,leafy throughout stem carrying =5 to 7, leathery, rigid, erect, arched in the distal part, they all end in a lamina, the first very short, increasing as they ascend, flat, the first three imbricate, the last similar to bracts floral, conduplicate, narrow, lanceolate, acuminate, the largest located below the middle of the plant, ovate-lanceolate, acute, ashy green on the underside, green above with three main nerves raised in carinas, the conspicuous central carina are furrowed, the edges hyaline leaves that blooms in the late summer on an erect, terminal, rachis similar to the stem, but thinner, 2.6 to 3.68" [6.5 to 9.2 cm] long, in a loose, cylindrical cluster, simultaneously six to eleven flowered inflorescence with erect, almost adpressed, strongly conduplicate, encloses the ovary and the nectarius, contracted at the base, lanceolate, acuminate, with three main nerves raised in carinas, conspicuous central carina, loose reticulum, edges hyaline, far exceeds the flowers floral bracts.
"Habenaria magnibracteata is similar to H. filifera contrasted by the floral bract that wel lexceeds flowers in length; the anterior segment of the petals are as long as to slightly shorter than the posterior segment; slightly longer labellum side lobes than the middle lobe; nectary in most flowers as long as the ovary, sometimes barely longer, short and rostellus arms and the anther channels convergent, in profile the view is hidden by the stelids. In H. filifera the leaves are all erect; The cluster denser and narrower; floral bract below equals ovary, above is slightly shorter, the flowers are and generally more numerous (about 18); the posterior lobe the petals are .24" [6 mm] long, .028" [0.7 mm] wide; the median lobe of the linear, rounded, 7 mm of long, .028" [0.7 mm] wide and the nectary is .44" [11 mm] long.
"Habenaria magnibracteata is sympatric with Habenaria eatoniana and they can be confused, here are the following differences. In Habenaria eatoniana the seven to nine leaves are subcoriaceous, the first two reduced to sheaths, almost flat, green, opaque, the larger located just above the middle of the plant; the stem with a carina; the inflorescence is in a dense little cluster, subcylindrical; triangular-lanceolate floral bract; the ovary with six carinas, sometimes the dorsal carina raised in a wing; erect flowers; the elliptical dorsal sepal, dimmed; the lateral sepals with both sides revolute, lanceolate; the posterior petal lobe is oblong, .36 to .4" [9 to 10 mm] long, with three nerves; a retroflexed anterior lobe; the side lobes of the labellum are pendulous, with the distal part slightly incurved, with a rib; the dilated part of the nectary is about one-third of the way of the total length; the column in trapeziform front view; rostellus half as long as the column and pollinal with the pollinia ovate." Jorge Roberto González Tamayo y Lizbeth Hernández 2010
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ;
Photos by © Juan Carlos Garcia Morales
Las Orquideas del Occidente de Mexico Vol 1: 66 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010 drawing fide;
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