533. CXL. ORCHIDACEE. Oncts. 
le, purplish flower at top, as large as that of a Cypripedium. Leaf petiolate, 
‘in diameter, subcordate at base. 
6 TIPULARIA. Nutt. 
Tipula, the crane-fly ; from the fancied resemblance of the flowers. 
Segments of the perianth spatulate, spreading; lip entire, sessile, 
conspicuously spurred at base ; column wingless, free ; anther oper- 
culate, persistent ; pollinia 4, parallel. 
T. piscétor. Nutt. (Orchis. Ph. Limodorum uniflorum. Muh.) 
A slender, green-flowered plant, resembling a Corallorhiza, growing in 
pine woods, Vt., Mid. States to Car. Root bulbous. Leaf solitary, petiolate, 
ovate, plaited, smooth, and longitudinally veined. Flowers minute, greenish- 
white, nodding, in a terminal raceme destitute of bracts. Jl. 
Section 2. Pollen cohering in waxy masses, which are pedicellate, 
with glands at the base of the pedicels. Anthers of 2 distinct, 
vertical cells. 
7, ORCHIS. 
The Greek name of these plants. 
Perianth ringent, the upper sepal vaulted; lip entire or lobed, 
produced at base into a spur which is distinct from the ovary ; anther 
terminal ; pollinia 2, adnate, pedicellate—F'/s. racemose or spicate. 
§ 1. Orcuis vera. Lip broad, entire. Glands of the pedicels of the 
pollinta enclosed. 
1. O. spectaBitis. Showy Orchis. 
Lvs. about 2, nearly as long as the scape; lip obovate, undivided, crenate, 
retuse ; segments of the perianth straight, the lateral ones longer; spur clavate, 
shorter than the ovary, dracts longer than the flower.—This pretty little plant is 
found in shady woods and thickets, among rocks, &c., U. S. and Can, Root 
fasciculate. Leaves few, radical, ovate, 3—6’ long,3—4as wide. Scape 4—6/ 
nigh, acutely-angled, with a lanceolate, acute bract and 3—5 large, showy 
flowers. Segments of the perianth-purpte, ovate-lanceolate. Lip and spur 
white or whitish, each about 8” long. May, Jn. 
§ 2. Pratantuera. Lip narrow, entire. Cells of the anther widely sepa- 
rated at base by the broad, interposed stigma. Glands of the pedicels 
of the pollinia naked. 
2. O. orBicuLATA. Pursh, (Platanthera. Lindl. Habenaria. Torr.) 
Iws. 2, radical, suborbicular, rather fleshy; scape bracteate; upper sep. 
orbicular, lateral ones ovate; lip linear-subspatulate, nearly twice as long as the 
sepals; spur arcuate, compressed, clavate, twice as long as the ovary.—A re- 
markable plant, not uncommon in old woods and in thickets, Penn. to Can. and 
W. States. Leaves lying flat upon the ground, 3—6/ diam., rather inclining to 
oval or ovate with the apex acute. Scape 1—2f high, sheathed with a few 
bracts, bearing a raceme of numerous, greenish-white flowers. Lip }—1’ by 
4—1". Spur 14—2’ long. Jl. 
3. O. Hooxertina. Wood. (Platanthera. Lindl. WHabenaria. Torr.) — 
Las. 2, radical, suborbicular or suboval, fleshy; scape naked; bracts lance- 
olate, nearly as long as the flowers ; wpper sepal ovate, erect, lateral ones deflexed 
and meeting behind; pet. acute, lip lanceolate, projecting, acuminate, a little 
longer than the sepals; spur subulate, arcuate, about twice longer than the 
ovary.— Woods, Can., N. Eng.! to Wis., Lapham! rare. Resembles O. orbicu- 
lata, but is very distinct. Scape 8—12’ high, without a bract below the flow- 
ers. Leaves 4—5’ long, nearly or quite as wide. Flowers 12—18, in a straight 
raceme, yellowish-green, the spur 9—12” in length. Jn. Jl. 
4. O. nypersorea. Willd. (Habenaria hyp. & Huronensis. Spr. ‘Pla- 
tanth. Lindl.)—St. leafy; ivs. very erect, acute; spike somewhat secund- 
