184 PROCEEDINGS OF THE AMERICAN ACADEMY 
below, only the axils of the veins bearing tufts of white hairs: 
petioles 4-1 inch long: inflorescences axillary, opposite, racemose; 
bracts few, small, lanceolate; bractlets minute, subulate; calyx 
glandular-pubescent, of five lance-linear segments, 2 lines long: 
corolla pubescent on the outer surface, reddish, strongly veined, 
nearly an inch long; tube narrow; lips subequal, the upper erect, 
emarginate, the lower spreading, with three very shallow rounded — 
lobes: stamens close to the upper lip, inserted rather low down 0B 
the tube; anther cells nearly equal in size, one inserted. higher 
than the other and oblique, both with a small white spur at the 
base: fruit not seen. — Limestone ledges, Las Canoas, San Luis 
Potosi, October and December, 1891 (n, 3933). 
HaBENARIA PRINGLEI. Roots mostly fibrous, but the central | 
one tuberous: stem 3 feet high: leaves sheathing, ensiform, cat — 
nate, 6-8 inches long, an inch in breadth, gradually tapering to 4 
long point: bracts lanceolate, sharply acuminate, 2 inches long — 
5 lines broad; flowers about 10, large, pedicels 18 lines long; the 
ovary of equal length: sepals ovate, acuminate, minutely. cuspidate, — 
8-9 lines in length; the upper one erect, scarcely at all galeate; — 
lateral petals 2-cleft. to the basé, the segments linear, acute, the ie 
upper broader, not equalling the sepals; the lower yery narrow 
more than an inch in length: lip 3-cleft nearly to the base, exceed — 
ing an inch in length; the segments all narrow and linear, the b 
lateral somewhat surpassing the thickish, scarcely acute cen 
one: fleshy processes very conspicuous, linear-spatulate, 3-4 lines — 
in length: spur over 5 inches long, exceeding the ovary and pede 
icel, its tip sheathed in the bracts and apparently adherent 5 
them. — Near Guadalajara, June, 1891 (n. 3823). This striking - 
species is related to H. macroceratites, Willd., and H. setifer s 
Lindl., but differs from the former in its much longer narrower — 
leayes, larger flowers, and conspicuous fleshy appendages; from th : 
latter, by its larger more numerous flowers, and in the shape of i” : 
petals. oe : 
TIGRIDIA PULCHELLA. Bulb small, oval, } inch in diameter, with 
a few fibrous roots at the base: stem. slender, flexuous, 6 inches 
to a foot high, bearing about two narrow linear acute plicate 
leaves: spathe of two nearly equal lanceolate acute bracts * . 
lines long, 5 lines broad: flowers solitary, about an inch 
diameter: pedicel slender, an inch in length: ovary 4 gst 
long: outer segments of the perianth ovate-oblong; the lower part 
slightly broader, light colored and spotted with purple, the bia 
: 
: 
