TRIANDRIA, MONOGYNIA. 
26. Xyris, Gen. pi. 89. CGraminete.J 
Flowers in an ovate cylindric capitulum. — 
Calix glumaceous, 3-valved, valves unequal, 
the outer coriaceous. Corolla 3-petalled, 
equal. Stigma trifid. Capsule 1-celled, 3- 
valved. Seeds very numerous, and minute. 
Nutt. 
1. X. heads closely imbricate ; calix shorter than t^e flexuosa, 
bracteas, sparingly feathered ; leaves long, sword- 
shaped, twisted. Elliot. 
X Caroliniana, Walt, Lam. and Poir. 
X. Jupicai, Mich. 
X. anceps, Pers. ? 
Waved-stemmed Xyris. Tellow-flowering Rush. 
From ten inches to 2 feet high. Leaves linear, stem anci- 
pital flexuose. Flowers yellow, in an imbricated terminal 
capitulum . In marshy meadows and wet places with sedge 
and other grass, common, particularly in Jersey. July. 
27. Rhyncosphora, Vahl, enum. pL 2. p. 229. ( Cyperiodeas . ) 
Scales of the calix collected into a spike, the 
inferior ones empty. Corolla 0. Style per- 
sistent at base. Bristles at the base of the 
Seed. 
1. R. Spikes in corymbose clusters ; stem above, aiba. 
3-angled ; leaves linear channelled ; bristles of 
the seed 10. Ait. Kew. 1. p. 127. 
Schoenus albus, Mich. 1. p. 34. 
White bog-rush. 
From one to two feet high. Glumes whitish. In the bogs 
and marshy places of Jersey, every where very common. Pe- 
rennial. July. 
2. S. spikes clustered in corymbs, very distant, by giomcr^T 
pairs ; stem obtuse-angled j leaves linear. Vahl. 
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