1106 Cellulares. 
4, on the mner side and lower half of each branchlet. 
On each branchlet there are from 4 to 7 whorls of 
nearly obsolete scales. Aug. 8 to 10i. ©. In shal- 
dow, slow running water. Old River, Hamilton, O. 
Molentangy River, Worthington, O. 
1793. C. humilis, mihi. Stem calcareous, solitary and branch- 
ing, scabrous, (not sulcate,) 2 to 3 inches high.— 
Branchlets 8 to 10 in a wherl, without an involucre, 
generally equalling the internedes which do not ex- 
ceed three-fourths of aninchin length. Towards the 
summit of the stem, each branchlet bears 1 or 2 thece. 
Colour deep green. Aug. ©. Growing in the shallow 
water of Old River, with the last, which it resembles. 
£794. C. sabulosa, mihi. Stone-wort. Stem with a few erect 
branches, subsuicate, papillose; branchlets generally 
- 10, sometimes 8 in a whorl, without an involucre, 
neat half an inch long, each with 2 to 4 verticilli of 
scales, in the axils of which, on the inner side of the 
branchlet, are contained the thece. Jnternodes near 
aan inch long. Aug. ©. 18 inches high. Colour 
light pea green. Four or five plants generally grow 
in company in-‘clear pools where the water is two or 
three feet deep. Dayton,O. The calcareous incrus- 
tation is unusually thick, and the stems remarkably 
brittle. 
b. var. spiralis, mihi. Stem spirally sulcate; compared 
with the last, the branches are more divaricate, and 
the internodes and branchlets twice as long in propor- 
tion to the size of the stem. Pools near Dayton. 
Trise lil. Apnyiiz. Leafless flowerless plants. 
CCLXX. LICHENES.—Txe ticuen TRIBE, 
795. Cenomyce pyxidata. Autumnand winter. Cinereous 
g. #toli. On the earthe Wor. O. (The names 
accord with the Synopsis Methodica Lichenum of 
Acharius. 
1796. C. bacillaris. Nov. r. #i, On the earth. Central O. 
1797. C. coccifera. Autumn. r. 4i. Earth. O. 
#798. C. rangiferina. Rein-deer moss. March. Lichen cin- 
ereous. 2to4i. NShady, rocky ravines. Wor. O. 
Earth. In colder regions this lichen grows much more 
luxuriantly. The rein-deer subsists upon it during the 
Greenland winter. 
¥79O. Peltidea canina. In fruit at all seasons. Lichen blu- 
ish cinereous, or greyish green. 1 to 2 i. On the 
earth, among mosses, in damp rocky situations. O. 

