170 
tenuis. 
bufonius. 
conglomera- 
tus. 
echiiiatus. 
ckmpestris* 
HEXANDRIA, MONGGYNIA. 
S. J. stem leafy, simple, terete ; leaves channelled ; 
porymb terminal, dichotomous, shorter than the 
bracteas ; capsule oblong, obtuse, shorter than 
the petals. — Fers. 
J. tenuis, Rostk. June. 21. t. 1. f. 3. (Piirsh.) 
J. bicornis, Mich. & Pursh. 
Slender Rush. 
In wet fields and meadows, and on the margins of plashes^ 
common. Perennial. July. 
3. J. stem dichotomous; leaves angled; flowers 
solitary, sessile. — Sp. PL 
Icon. FI. Dan. 1098. Engl. Bot. 802. 
A small species. In wet grassy places. Rare. Perennial. July. 
4. J. stem naked, upright, panicle lateral-conglo- 
bate; capsule retuse, flowers triandrous. — Smith. 
icon. Host. gram. 3. t. 88. Leers, fl. herb. t. 
13. f. 1. (Pursh.) 
Resembles No. 1, but easily distinguished from it by the 
conglobate panicle. In the fens of Jersey, near Woodbury; 
rare. Perennial. June, July. 
5. J. heads few, globose, large, nearly sessile, 
many -flowered ; interior leaves of the calix 
smallest; leaves terete, with knot-like joints.-- 
Elliot. 
J. echinatus, Muhl. 
J. polycephalos, Mich. 
J. polycephalos, /3 tenuifolius^ Pursh. 
Icon. Pluk. aim. t. 92. f. 9. 
Rough-headed Rush. 
Grows in moist soils, and in low meadows. Not unfrequent. 
Perennial. June. 
6. J. leaves flat, hairy ; spikes pedunculated-ovate> 
half-drooping, intermediate sessile, calicine fo- 
