Orcas. CXL. ORCHIDACEH:. 633° 
bracts linear-lanceolate, acute, longer than the flower; sep. deflexed; pet. and lip 
linear, obtuse, subequal, (the latter dilated at base!) and about as long as the 
pendulous, obtuse spur.—A tall, leafy, variable species, found in mountainous” 
woods and open meadows, N. Y. to Mich. and Can. Stems thick, 2 or 3, or 
even 4 feet high. Leaves lanceolate, 4—7’ by 1—1}/. Flowers greenish in 
_ shades, nearly white in open situations, forming a long, more or less dense 
spike. July. ; 
8. Huronensis. More slender; vs. lance-oblong and lance-linear, obtuse or 
acute; spike rather loose, often long.—Vt., Dr. Phelps! W. to Mich. 
5. O. piuaTATa. Pursh. (Habenaria. Hook. Platanth. Lindl.) 
St. stender; lvs. lanceolate and linear, acute; spike loose; bracts lance- 
linear, about as long as the flowers; wpper sepal ovate, obtuse, the lateral nar- 
rower and spreading; Jip linear, entire, obtuse, dilated at the base, about equal- 
ing the petals and a little shorter than the obtuse, incurved spur, which is longer 
than the ovary—Swamps, Northern States! (rare) and Can. It is a slender 
and delicate species, with pure white flowers. Stem 10—15’ high. Leaves 
often narrow and grass-like, the lower lanceoiate. Flowers 10—20, spur about 
4” long. July. 
6. O. optusitTa. Pursh. (Platanthera. Lindl. Habenaria. Rich.) 
Lf. solitary, oblong-obovate, obtuse; st. bearing the leaf near its base; 
spike loose; wpper sep. broadest; pet. subtriangular; /ip linear, entire, with 2 
tubercles at base, as long as the arcuate, acute spur.—Found in muddy ponds 
and ditches, N. H., Storrs! N.to Lab. Stem slender, angular, 6—8’ high, ter- 
minating in a thin spike of about a dozen small, greenish-white flowers. Leaf 
tapering at base, and usually obtuse at the summit, 2—3/ in length, and 1 in 
breadth, issuing with the stem from 2—3 radical, sheathing bracts. July. 
7. O. InTEGRA. Nutt. (Habenaria. oe) 
St. leafy ; lvs. lanceolate and lance-linear; bracts shorter than the flowers ; 
lip oblong, entire, longer than the petals; spur subulate, longer than the ovary. 
—Swamps, N. J., Nuttall. A species very nearly allied to O. ciliaris, appa- 
rently differing only in the flowers being smaller; and with the lip entire, not 
fringed. Flowers orange-yellow. Jl. 
§ 3. Hapenarra. Lip dilated, variously divided. Glands of the pedi- 
cels of the pollinia naked, distinct. 
* Lip toothed or 3-parted, not fimbriate. 
8. O. FLava. (Habenaria herbiola. Br. Platanthera. Lindl.) 
St. leafy; lower lvs. oblong, acute, upper lanceolate, acuminate; spike 
rather dense, cylindric; dracts longer than the flowers; lip oblong, obtuse, den- 
tate at base ; palate with 1 tuberculate tooth; spur filiform, rather shorter than 
the sessile ovary.—A small-flowered orchis found in alluvial soil. Stem flexu- 
ous, 12—18' high. Leaves about 3, with long sheaths, 3—6 or 7’ by 3—2’, taper- 
ing to an acute summit. Flowers in a long, thin spike. Sepals short, ovate, 
green. Petalsyellowish. Upper bracts about as long as the flowers, lower ones 
2 or 3 times as long. The tubercle of the lip isa remarkable character. June. 
9. O. viripis. Swtz. (O. bracteata. Muhl. Peristylus bracteatus. Lindl.) 
_ St. leafy; Ws. oblong, obtuse, upper ones acute; spike lax; bracts 2—3 
times as long as the flowers; sep. connivent, ovate; pet. linear, erect; lip linear- 
cuneate, truncate, 3-toothed at the end, the middle tooth small or obsolete; spur 
short, inflated, obtuse.—A small, green-flowered orchis, in shades. Stem 6—9/ 
high. Leaves about 3, 18—30” by 6—12”, upper bracis as short as the flower. 
Spikes 2—3’ long. Flowers yellowish-green. Lip as long as the ovary, 3 times 
as long as the spur. Can. to Va. W. toll. July, Aug. . 
10, O. rRmenTATA. Willd. (Habenaria. Hook. Gymnadenia. Lindl.) 
Radical if. solitary, oblong, obtuse, cauline 2—3, much smaller; sep. cam- 
panulate, obtuse, converging ; /ip lanceolate, 3-toothed, at the extremity; spur 
filiform, curved, clavate, longer than the ovary.—Grows in woods and swamps, 
Can., Mich., Penn., Va. Stem slender, 1—2f high, with small, greenish-white 
flowers in a short and rather loose spike, appearing in July. 
