discovered in Canada in 1819. $$1 
GYNANBRU MONANDRIA. 
Habenaria. 
Corolla rinsens. Lahellum bRsi subtus calcaratuEo. Glanduhe 
pollinis nudag distinctae (loculis pedicelloriim ^.dnatis v,el so- 
liitis distinctis). — Brown. 
Habenaria maerophylla^ labello iineari-elongato integerrimo, an- 
thera basi utrinque producta, cornu germine duplo longiore, 
foliis binis planis ellipUco-orbiculatis. 
Hah. Moist shady woods, Island of Montreal. Very rare. 
Of all the Orchideous plants which I have seen in North Ame- 
rica, this is, without a question, the largest and most striking. 
It must rank next to Habenaria ordiculata {Orchis of Pursh 
and Nuttall), having, like it, two plane, orbicular, approaching 
to elliptical, leaves, which spring from immediately above the fas- 
ciculated root, and which, in this plant, are four times as large 
as those of H. orhiculata, measuring from six to eight inches in 
length, very thin and pellucid, beautifully marked with longitu- 
dinal and transverse veins. The scape is equally long in propor- 
tion, and is furnished with a few lanceolate scales. Bracteas si- 
milar to these, and shorter than the germen. Flowers large, 
white, resembling those of H. hifolia, and arranged in a lax spike 
of about five or six inches in length. The three superior petals 
are connivent, the uppermost is nearly orbicular, the others ovate, 
attenuated, the two lateral ones of the same shape, but much 
larger, reflexed, their bases decurrent with the lahellum, which, 
standing forwards, is linear, as long as the germen, quite entire. 
Germen about an inch in length, slender, tapering down into a 
footstalk. Column of fructification very short. Anther large, 
broad, much like that of H. h folia, but having the base of the 
cells remarkably apart and elongated into two projecting horns. 
Pollenmass yellow, with a very long footstalk, and a jointed 
gland at the base. Stigma large, viscid. 
MONCECIA POLYANDRIA. 
Betula. 
Mas. Amentum imbricatum, squamis peltatis trifloris. Staminei> 
10~12. Fulu. Squama ASY??z<J?Mmicuni, alatum. 
