
Muscoidee. ; 109 
CCLXVIII. HEPATICEA.—Tue pene NU TRIBE. 
1786. Jungermannia multifida, Linn. 1 to 2 i. Swampy 
woods, Monroe, O. 
1787. Marchantia polymorpha, Linn. Brook liver-wort. July. 
g-y. 2i. 4%. Wet shady rocks, in wells, &ce. O. To- 
nic, demulcent, nutrient. De Cand. Lind. 322, 
1788. M. hemispherica, Linn. 1#i. Rocky grounds. O. (2) 
Valuable diuretic, and local diaphoretic. Eberle. 
1789. Riccia fluitans, Linn. Fork-stems. June. Floating, 2 to 
3i. Plenty from Lake Superior to Boston, in water 
among lemne. Eat. 
CCLXIX. CHARACE/:.—Tue cuara TRIBE. 
This order consists of a few obscure aquatic plants, found 
generally in stagnant pools. In Sprengel’s Systema 
Vegetabilium, vol. iv. p. 345, (Ed. of 1827,) there are 
sixteen species of Chara enumerated, most of which 
occur in the temperate parts of the globe. J have not 
at present the means of comparing the plants which 
are described below, with foreign specimens, nor even 
with satisfactory descriptions. The specific names are 
therefore given more with a reference to present con- 
venience, than with the expectation of their being ulti- 
mately retaimed. 
1790. Chara vulgaris, Willd. Feather-beds. Branhchlets or 
leaves 7 to 9 in a whorl, bearing verticilli of still smal- 
ler branchlets. Stem 12 to 18 inches high, branching. 
Odour fetid, colour dirty green above, orange or yel- 
low below. This species forms dense beds in stagnant 
pools and ditches. Like the other species it is encrust- 
ed with carbonate of lime. July—Aug. ©. O. 
1791. C. flexilis, Willd. Stems seldom czspitose, 18 to 24 in- 
ches high, moderately branching, smooth, semipellucid, 
eflervesces slightly in muriatic acid; colour nearly 
brown; branchlets or leaves 4 to 7 in a whorl, from 4 to 2 
inches in length, often branching; internodes 2 to 4 in- 
ches. July-Aug. ©. Grows in clear still water, 2 
miles south of Dayton, and 7 miles north of Cincinnati. 
1792. C. squamosa, Desfontaines. (2) foliosa, Willd. (2) Stem 
solitary, calcareous and very brittle, sending off at dif- 
ferent heights 2 or 3 branches at an angle near 35°; 
scabrous, striate, subsulcate, the younger portions arm- 
ed with numerous whorls of minute foliaceous scales, 
Branchlets generally 13 in a whorl, from one half to 
three fourths of an inch long, involucred at their ori- 
gin by a dense whorl of subulate scales. Thece 2, 3 or 

