ORCHIDACEAE 379 
and low woods, Coastal Plain, New England Upland and Great Lake Lowland, 
Fla. to La., Ont., and Vt. —Spr. 
19. PRESCOTTIA Lindl. Caulescent herbs, with stout roots. Leav 
various, the basal ones with broad blades, the cauline ones reduced to didus 
scales. Flowers minute, 1 in a terminal 
i i it 
th 
sepals. Lip very broad, the bla de. auri- 
cled at the base. Capsule ascending.— 
About 30 species of tropical America. 
1. P. oligantha (Sw.) Lindl. Plant 2- 
the stem with narrow scales: 
about 1.5 m 
ee -ovate, about 1 1 mm. : lip 
15 m long, t he blade suborbieu- 
lar P LUE aurieles at the 
capsule-bo ody 4—5 mm. lo mic AU "Everglade Keys, Fla.— (WW. I.) —Wint. 
20. CRANICHIS Sw. Caulescent oa. herbs, with coarse roots. 
Leaves various, the lower cauline with mostly long-petioled dilated blades, the 
upper ones reduced to partially eee | 
ing scales. Flowers in a terminal spike. 
1 itis 
. pals broad, slightly inequilateral. Petals 
narrow, mueh smaller than the sepals. 
longer than the petals, concave. 
Capsule scarcely stipitate-—-About 20 
species of tropical America. 
1. C. muscosa Sw. Plant 1-3 dm. 
the stem scaly: c blades "olg: 
elliptie, oval or ad 2.5-7 long: 
lateral sepals 3 -3.5 mm. long: 
vetals narrowly Mistic to cuneate-spatu- 
ate, 2.5-3 mm. long: lip oblong or 
o so, about 3 mm. long, sessile: or 2 or ellipsoid, 1 em. long or 
les E eeu Everglade Keys, Fla—(W. I.)—Wint.-spr. 
21. PONTHIEVA R. Br. Caulescent herbs with seape-like stems from 
clustered roots. Leaves various, the lower cauline with dilat ed blades, the 
mere scales. Flow im a lax raceme. Perianth greenish. Latera 
sepals broad, slightly inequilateral Petals icine is blade very inequilat- 
eral, slender-elawed. Lip relatively small, eonea eaked, short-elawed. Cap- 
ading.—About 20 species, natives of ino tropieal and warm parts of 
America.—SHADOW-WITCHES. 
Petal-blades about as wide as long: lip 4 mm. long or more. 1. P. racemosa. 
Petal-blades decidedly longer than wide: lip 3.5 mm. long or less. 2. P. Brittonae. 
1. P. racemosa (Walt.) C. Mohr. Plant 2-5 dm. tall, the stem scape-like, with 
remote sheathing seales: leaves mainly near the base of the stem ; blades. ellip- 
