CL. IIT. TRIANDRIA. 
MONOGYNIA. 
Calix» Corolla» 
SCIRPUS 
22 retrofractus 
% 
backward-bent 
1 valv. 
imbricat. 
1 valv. 
imbric. 
23 cyperitbrmis, 
luimlinus^ Spren- V cyperus-like 
gcl % 3 
24 macrostachyos sea, large, spiked, 
25 brunneus % brown, panicled 
26 atrovirens % 
27 lineatus streaked 
28 pendulus % pendulous 
47 TRTCHOPHO- 
RUM 
1 cyperinum, 
lineatum^ Scirpus 
thyrsifloruSy^^Wdi. 
2 alpinum Hudson’s Bay 
48 ERIOTHORUM cotton grass 
Habitat. Fructus^ et 
Tempus florendi. 
CPenn. fl. Jul. Cherok. 
^ Mass. 
Penns.fl. Jul. Georg.Car . 
rCar. Virg. Delaw. 
4 N. Ebor. N. Angi. 
Penns. fl. Sept. Del.^ 
black-green, panicled Penn. fl. Jun. Del. 
Car. 
Penns. fl. Jun. 
C sem'. setulae capilli- 
^ formes, num. defin 6. 
Aug. Virg. 
N. A. 
2 valv. 
2 flor, 
involucr. 
1 polystachium ^ 
2 Virginicum 
3 angustifolium 
Penns. fl. 
Georg. 
Can. N. Ebor. 
C semen 1, villis instruc- 
C tum. 
common, many-headed Penns. fl. Jun. 
Virginian Pen.flJul.Car.Virg.N.A 
narrow-leaved Del. N. Ebor. N. A. 
2 
valv. 
49 CENCHRUS hedge-hog grass 
2 valv. 2 
1 fl. valv. 
© 
© 
1 echinatus 
2 tribuloides 
50 SPARTINA, 
TRACHINOTIA, 
Mx. 
1 cynosuroides 
2 polystachia 
3 juncea 
4 glabra 
5 patens, Hort. 
Kew. 
rough-seeded 
woolly, spiked 
►SPARTINA 
sem. 1, subrotundum. 
CPens. fl. Aug. N Cxs. 
l Georg. 
N. Cses. Virg. Carol. 
N . Ebor. 
C semen 1, oblong. com- 
C press. 
C American cocks-foot a a., xt * 
grass jPenns.fl. Aug.N.A 
A 
many-spiked, 
broad leaved 
rush-like 
smooth 
C Penns. N. Angi. Ten. 
l fl. Aug. 
Car.Georg.N.Cses. N.A. 
Car. Del. N. Eb. N. A. 
^spreading 
DIGYNIA. 
1 
valv. 
1 fl. 
2 51 MUHLENBERGIA, 
valv. DILEPYRUM, Mich. 
. 1 diffusa 
S valv. 
Ifl. 
2 erecta 
0 52 LE'ERSIA 
1 oryzoides 
2 Virginica 
3 lenticularis 
(diflfused) spreading 
upright 
LEERSIA 
(cut- grass) 
Virginian 
round-husked 
semen 1, oblong. acu- 
minat. 
Penns.fl z\ug.Kent.Car. 
C Penns. fl. Jun. Car. 
l Georg. N.A. 
semen l,obovat. tectura. 
Penns. fl.Aug. Car.N.A. 
Penns. fl. iVug. Car. — 
Illin. 
