Cypripedium susanae R.González & Lizb.Hern. 2010 SECTION Irapeana
photo by left Jorge Roberto González Tamayo/photo right by Susan Ibarra/TYPE Drawing by © Jorge Roberto González Tamayo and Las Orquideas del Occidente de Mexico Vol 1: 8 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010
LATE
Common Name Susan's Habenaria [Susan Ibarra Mexican Collector of the type species current]
Flower Size
Found in Nayarit state of Mexico in pine and oak forest, on hillside, in volcanic terrain, at elevations around 1100 meters as a medium to large sized, cool growing, caespitose terrestrial with an erect, cylindrical, fluted, .2" [5 mm] in diameter, green, brittle stem carrying imbricate, erect, canaliculate, sometimes only at the base, lanceolate to ovate-lanceolate, attenuated and acuminate or contracted in a short acumen, 5 to 5.8" [12.5 to 14.5 cm] long, 1.64 to 2.56" [4.6 to 6.4 cm] wide, green, with seven to nine main nerves, wavy edged leaves that blooms in the late summer on an erect, terminal, to 36" [90 cm] tall, successively 1 to 2, to five flowered inflorescence
" Cypripedium susanae shares with C. luzmarianum the plant habit and many floral similarities, in fact there is a very close relationship between the two species, the differences among them are reduced to the following, C. luzmarianu lives in tropical deciduous forest; the floral parts are a yellowish cream color; an elliptical dorsal sepal, 1.64" [ 4.1 cm] long, 1.12" [2.8 cm] wide, all three main ribs have raised keels; the lateral sepals are elliptical, rounded, with acute epiculus and 1.4" [3.5 cm] long, .96" [2.4 cm] wide, with three main veins raised in carinas; the shallowly convex, cuneate, oblong-elliptic, subobtuse petals, are about 2" [5 cm] long, 1 to 1.2" [2.5 to 3 cm] wide; the labellum in natural position is about 1.8" [4.5 cm] long, 1.2" [3 cm] in diameter, the base forms two inconspicuous, rounded shoulders, the basal inner face is ornamented with a cushion of botuliform trichomes, the first integers at the base and become glandular towards the middle, the margin forms an opening ca.de 1"[2.5 cm] long, .8" [2 cm] wide in front; the cordate or rounded staminode, in natural position it has an elliptical contour, if extended is ovate-chordate, about .56" [1.4 cm] long, .36" [9 mm] wide; the stigma is about .2" [5 mm] long, .2" [5 mm] wide, and has a groove in the shape of the letter "Y"; the median lobe is acute, flabeliform, the base cuneate; the anthers each have a thick body, .08" [2 mm] long, .08" [2 mm] wide and the lobules in natural position are oblique and oboloids. Cypripedium irapeanum has a similarity; the flowers are yellow in an intense tone; the dorsal sepal is ovate and acute; the convex petals are shallow, the apex is revolute, with an acumen that is somewhat conduplicate, triangular and obtuse; the lip is dilated toward the apex, obovoid in natural position, 2.4" [6 cm] in length, 1.56" [4.4 cm] in diameter, mouth .88" [2.2 cm] wide, a basal aperture approximately elliptical, .4" [1 cm] long, then a dilated indentation gradually forward, the rounded edges, near the base provided with two red macules and all around the mouth striped red, the broad lines, at the base hispid, the trichomes erect or adpressed, rectilinear, acuminate; he staminodio in side view is sigmoid, concave towards base, deltoid, .76" [1.9 cm] long, .48" [1.2 cm] wide in natural position, and ends in a barely arched, underextended triangular face; the stigma .38" [8.5 mm] long, .32" [8 mm] wide, densely warty, with a groove shaped like the letter "Y"; the median lobe isin general flabeliform in outline; the anthers .14" [3.5 mm] long, .16" [4 mm] wide." Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010
Synonyms
References W3 Tropicos, Kew Monocot list , IPNI ;
* Las Orquideas del Occidente de Mexico Vol 1: 7 Jorge Roberto González Tamayo y Lizbeth Hernández Hernández 2010 drawing/photos fide;
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