Analytic Keys to the Species of Mosses. 
65 
HOMALIA, p. 285. 
Costa vanishing above middle, leaves serrulate. 
Leaves oblong, subfalcate, apiculate . . H. tricliomanoides, 1. 
Leaves Ungulate, subfalcate, apiculate ... H. Jamesii, 2. 
Costa sometimes hardly perceptible, leaves obovate, ob¬ 
tuse, serrulate. H. obtusata, 3. 
Costa double, very short, or none, leaves entire . . H. gracilis, 4. 
METEORIUM, p. 286. 
Leaves serrulate.M. pendulum, 1. 
Leaves minutely crenulate. M. nigrescens, 2. 
LEUOODON, p. 287. 
Capsule exserted. 
Leaves entire, open-erect, lid exactly conic . . L. sciuroides, 1. 
Leaves serrulate at apex, squarrose, lid obliquely ros¬ 
trate .L. julaceus, 2. 
Capsule surpassed by perichsetial leaves, leaves secund L. bracliypus, 3. 
PTEROGONIUM, p. 289. 
Leaves broadly oblong-ovate or -obovate, acute, smooth . P. gracile, 1. 
Leaves broadly deltoid-ovate, narrowly acuminate, papil¬ 
lose . ..P. brachypterum, 2. 
* 
ANTITRICHIA, p. 290. 
Capsule oval (1:2—-2.5), leaf cells fusiform . . A. eurtipendula, 1. 
Capsule cylindric (1:6), leaf cells oval . . . A. Californica, 2. 
HOOKERIA, p. 292. 
Leaves bicostate to middle (not papillose ?) 
Leaves bicostate to apex, papillose 
Leaves ecostate, entire (not papillose?) . 
H. varians, 1. 
H. cruceana, 2. 
H. Sullivantii, 3. 
FABRONIA, p. 294. 
Leaves ciliate-dentate. 
Peristome of 16 teeth, costa 0 or very short F. pusilla, 1 
Peristome 0, leaves costate to middle . . F. gynmostoma, 2. 
Peristome of 8 geminate teeth, leaves costate nearly to 
middle.F. octoblepharis, 3. 
5—A. & L. 
