91 
tetrandria, monogynia. 
from the ridge-road, under the shade of Abies Canadensis and 
J uniperus communis, peeping above the fallen and dead leaves 
of those trees. On the hilly shaded banks on the east side of 
the Schuylkill, a short distance south of the falls. On the very 
high banks of the same river,' west side, near some exposed 
rocks, above the falls a half quarter of a mile. Elsewhere I 
have never seen it. Like the rest of the Gentianse, it is very 
bitter. Perennial ? April and beginning of May, in common 
seasons. 
84. AMMANIA. Gen. pL 206. fSalicariceJ 
Calix 1 leaved, striate, 8-toothed, inferior. 
Corolla of 4 petals, or none, inserted upon 
the calix. Capsule 4-celled, many-seeded. 
Nutt. 
1. A. stem procumbent ; leaves lanceolate, narrow- humiiis, 
ed at the base into petioles ; flowers solitary, op- 
posite, sessile. — Mich. 
A. ramosior, Walt, not of Willd. 
A half-trailing subaquatic plant, with very small red flow- 
ers — stem reddish. Near a pool, about a mile over Cooper’s 
creek, after passing the bridge. Rare. Annual. August, 
September. 
85, SYMPLOCARPUS. Salisbury. (Aroide<eJ 
Spatha ventricose-ovate, acuminate. Spadix 
roundish, covered with hermaphrodite flow- 
ers. Calix deeply 4-parted, persistent, seg- 
ments cucullate, truncate, becoming thick 
and spongy. Petals 0. Style pyramidal, 
4-sided; stigma simple, minute. Seeds so- 
litary, immersed in the spongy receptacle. — 
Nutt. 
1. S. leaves ovate-cordate, acuminate, veined, en- fcetida.; 
tire ; scape radical ; spathe ovoid, cucullate, acu- 
minate, depressed at the apex ; bracteas spathu- 
late, without veins, glaucous ; spadix peduncu- 
late, oblong-oval, truncate at the base. B. 
