60 
tribuloides. 
asperifolia. 
aquatica . 
miliacea. 
TRIANDRIA M0N0GYNIA. 
66. CENCHRUS. Gen.pl 1574. 
1. C. spica spiculis alternis, glumis femineis globosis muri- 
cato-spinosis hirsutis. Willd. sp. pl. I. p. 317* 
C. carolinianus. Walt.fi. car. 79. 
Icon. Sloan . hist. 1. t.65.f. 1. 
Near the sea-shore, from New Jersey to Florida. ©« 
June, July. v. v. ; v.s. in Herb. Walter. 
67. ORYZOPSIS. Mich. Jl. amer. \.p.51. 
O. culmo subnudo, foliis erectis subpungentibus asperis. 
Mich. 1. c. 
Icon. Mich. I. c. t. 9. 
On high mountain meadows : Canada and Pensylvania. 
If. July, Aug. v. v. I observed this grass on the 
Broad mountains of Pensylvania, and consider it worth 
the attention of farmers, as the considerable large 
seeds contain the finest flour of any grain I know. 
II. DIG YNIJ. 
68. ZIZANIA. Gen. pl. 1433. Indian Rice. 
. Z. panicula pyramidata, inferne divaricata mascula, su- 
perne spicata feminea, fulcris florum clavatis aristis 
longis, semine elongato. 
Z. aquatica. Lambert, in linn. trans. 7* p. 264. 
Z. palustris. Linn. want. 2Q5. Gron. virg. 148. 
Z. clavulosa. Mich.ji. amer. 1. p. 75. 
Icon. Lambert. I. f. t. 13. Tuscarora or Wild Rice. 
In all the waters from Canada to Florida, common. If. 
July, Aug. v.v. 
2. Z. panicula effusa, glumis brevi-aristatis : masculis et 
femineis mixtis, semine ovato laevi. Mich.ji. amer. 1 
p. 74. 
Z. aquatica. Willd. sp. pl. 4. p. 394 ? 
Icon. Sloan, hist. 1. t. 67 ? 
On the tide water meadows and ditches : Pensylvania 
arid Carolina. If. Aug. y. y. 
