Analytic Keys to the Species of Mosses. 
30 
Capsule cylindric (1:5-6); teeth divided half way or entire. 
[D. obliquus may be sought here.] 
Dioicous.D. plintliobius, 6. 
Monoicous.1). Neo-Mcxicauus, 7. 
b. Costa vanishing at apex or forming a short point. 
Leaves hyaline f of their length .... 1). obtusifolius, 9. 
Leaves hyaline only at base. 
Margins revolhte. 
Capsule long cylindric, leaves crenulate . . I). arenaceus, 3. 
Capsule elliptic, leaves entire.D. nervosus, 8.. 
Margins indexed above.1). Garberi, 4. 
B. Leaves with a pellucid border. . . D. Porteri, 5. 
II. Capsule nodding or pendent. 
Leaves with a thickened border below. 
Seta straight, capsule nodding or horizontal 
Seta reflexed, capsule pendent 
Leaves without a border . 
1). ceriums, 11. 
I). Laureri, 13. 
I). obliquus, 12.. 
BARBULA, p. 115. 
I. Leaves icith jointed dichotomous filaments on the costa. 
Costa broad (4 leaf) flattened, leaves thick, rigid . . § I. Aloidellse. 
Costa narrow, round, leaves thin, broad . . . § 11 . Chlorouotae. 
II. Leaves not filamentose. 
Teeth from a low membrane, scarcely projecting from the 
mouth [excl. B. brevipes]. 
Plants small. 
Leaf cells distinct.§ III. Cuueifolise- 
Leaf cells small. 
Periclisetial leaves little different from the foliage, 
§ IY. XJnguiculatse. 
Pericheetial leaves long sheathing or convolute . § Y. Convolute. 
Plants robust [excl. B. ccespitosa ]. 
Leaves entire; stems radiculose .... § YI. Tortuosse. 
Leaves serrate, stems not radiculose ... § YII. Squarrosse. 
Teeth from a high tesselated membrane . , § YIII. Syntricliia?. 
