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HABENARIA rripentara. 
Tridentate Habenaria. 
GYNANDRIA MONANDRIA.—Nar. Orv. ORCHIDES. 
Gen. Cuar.—Cor ringens. Labellum basi ecalcaratum. Glandule pollinis 
nude distinctz (loculis pedicellorum adnatis vel solutis distinctis).—Br. 
Habenaria tridentata; petalis conniventibus, labello subaequali late ovato 
obtuse tridentato, cornu filiformi curvato germine longiore. 
Orchis tridentata, Muar. MSS.—Wruun. Sp. Pl. v. iv. p. 41.—Porsu, Fi. of 
N. Am. p. 587. 
Root consisting of a few thick, whitish, subfasciculated, fleshy fibres. Stem 
a foot or more in height, erect, straight, furrowed, furnished near the 
middle with two or three moderately sized, oblongo-lanceolate, striated 
leaves; below with about as many submembranaceous or foliaceous 
scales, whilst in the upper part are two or three small bracteiform leaves. 
Spike oblong, of rather few, somewhat distantly placed, small, greenish-white 
ers, accompanied by lanceolate bractee, which are about equal in 
length with the germens. The five petals are connivent ; of these the two 
innermost are the smallest ; the three outer ones broadly ovate, concave ; the - 
lateral ones embracing with their margin the lower part of the lip. Lip 
standing out horizontally, about equal in length with the petals, broadly 
ovate or somewhat quadrate, cut at the extremity into three very short and 
obtuse teeth, and protruded at the base into a long filiform white spur, 
curved upwards, and subclavate at the extremity ; this is rather longer 
than the germen. Germen oblong, somewhat gibbous at the base, angu- 
lar, slightly twisted. Column very short. Stigma extremely small, convex. 
Anther large, terminal, 2-celled ; the cells distant at the base, and contain- 
ing each a clavate yellowish pollen-mass, whose glands of the footstalk 
are naked, and set apart or distant from each other. 
Another North American plant, for the introduction of 
which, from Canada, we are indebted to the zeal and perseve- 
tance of Mr Goxpre. In general habit, its greatest affinity is 
VOL. II. 
