52 
THIANDRIA MONOGENI A. Cypei'US. 
filicinus. 
flavescens, 
castaneus. 
Hydra . 
tulerosus. 
tenuiflorus. 
virens . 
ador alus. 
strigosus. 
|| || || Umlella radiis elongatis : spiculis alternis . 
1 1. C. spiculis lineari-lanceolatis remotiusculis laxe imbri- 
catis, involucro triphyllo umbella longiore foliisque 
laxis. Vahl. enum.. pl. 2. p. 332- 
In swamps of Virginia and North Carolina. 1/ . July. 
v. v. 
12. C. spiculis lineari-lanceolatis confertis, involucro tri- 
phyllo umbella trifida longiore. Vahl . enum. pl. 2. 
p. 335. Willd. sp. pl. 1. p. 279. 
Icon. FI. grceca, t. 4 7. 
fi C. pusillus, spiculis brevioribus castaneis. 
Common in low grounds. 1/. . June, July. v. v. 
53. C. spicis corymbosis, spiculis lineari-lanceolatis distan- 
tibus, foliis recurvatis, tuberibus oblongo- subrotundis. 
Vahl. enum . pl. 2. p. 344. Mich. jl. amer. 1 . p. 27. 
In cultivated fields and barren woods : Virginia to Flo- 
rida. l/.July. v. v. 
14. C. spiculis lineari-lanceolatis convexiusculis, involucro 
triphyllo umbella quinqueradiata longiore. Vahl, 
enum . pl. 2. p. 340. 
Icon. Rottl. gram. t.J.f. 1. Nut-grass . 
On the banks of Delaware and other rivers : Pensylvania 
to Carolina. %. June, July. v.v. The roots are 
very sweet, and eaten by children. 
15. C. spicis corymbosis, spicuhs linearibus convexiusculis, 
involucro umbella longiore, culmo folioso. Vahl . 
enum. pl. 2. p. 347« 
Icon. Rutth. gram. t. 14. f. 1. 
In wet fields in Carolina and Georgia. 1/ . July. v. v. 
16. C. spicis corymbosis, spiculis ovalibus, involucro lon- 
gissimo. JVahl. enum. pl. 2. p. 353. Mich.jl. amer. 1 £ 
p. 28. 
In wet meadows and woods : Pensylvania to Carolina. 
I/.July, Aug. v.v. 
17. C. spicis corymbosis, spiculis subulatis remotis distichis, 
valvulis subdistantibus, umbellis patentissimis involu- 
cellum subaequantibus. Vahl. enum. pl. 2. p. 3 56. 
Willd. sp. pl. 1. p. 284. 
Icon, Sloan, hist. jam. 1. t. 74. f. 1. et t. 8 .f. 1. 
On the banks of rivers : Pensylvania to Florida, rare. 
11 . Aug. v. v. 
18. C. spicis oblongis laxis, spiculis subulatis patentibus re- 
