16 MUSCI. (MOSSES.) 
ropean, and the point is more strongly serrulate : the capsule also is inclined to 
an oval shape. (Eu.) 
1l. P. subulatuma, Schreb. Very much like the last, but the base of 
the leaf not so suddenly dilated, more lanceolate, the point not so serrulate; ca- 
lyptra smaller; the antheridia naked in the axils of the perichzetial leaves. — 
ena and Rhode Island: rare. (Eu.) 
12. palustre, Br. & Sch. shencaeneae from the last two species 
Henrie’ by its canal on calyptra 4-5-lobed at the base: inflorescence 
as in No. 11.— Sandy soil, New Jersey, James. Louisiana u 
is. P. SS Hook. Upper leaves more or less obovate-oblong, 
densely areolated above, satiate at the apex of the lamina, with a broad, long- 
exeurrent costa; the lower leaves much smaller, oblong, ac 
appressed ; sabeule ovate; pedicel short; calyptra cuculliform; male flower 
gemmiform at the base of the fertile stem. — Pennsylvania, Drummond. 
§ 6. ASTOMUM, Hampe.— Stems simple or branched, perennial: leaves elon- 
gated, costate, the terminal much larger, with a loose, hyaline areolation below ; 
above minute, subquadrate, granulose: calyptra cuculliform: capsule globose or 
ovate, more or less rostellate. — (Allied to the Weisiex.) 
* Male flower gemmiform, axillary. 
14. P. erispum, Hedw. Stems divided above, bearing several capsules 
American ; but specimens (imperfect) from Texas and Indiana appear to belong 
to it. 
15. P. Sullivantii, Schimp. Resembles the last, but has shorter stems, 
not so much branched; capsule srcned shining, bright orange-colored ; calyp- 
tra and spores smaller. — 
16. P. nitidulum, Schimp. ee No. 15, but a smaller species, with 
a shining, pale chestnut-colored, oval, obliquely rostellate capsule, its pedicel 
thrice as long as in the last; calyptra minute, scarcely descending to the obscure 
line of operculation. — Central Ohio: rare. 
* * Male flower gemmiform, sto on the main stem or its branches 
7. P. Ludovicianum, 5 Larger than No. 14; leaves very 
ah the same in every respect; lk — obtusely rostellate, usu- 
ally 2-3 in the 6 same perichzeth, borne on a from below the male 
flower. 
—(P. crispum, var. vonneliaines, Schweegr.? Hook. § Wils. in Drum. 24 
— Coll., No. aiteige at Orleans, Drummond. 
5. BRUCHIA, Schwegr. (Tab. 15.) 
Calyptra etoaiay lobed at the base. Capsule obovate or oblong, — 
_ pediceilate : m large. Columella present. Spores numerous, usually 
yellow, ma Inflorescence moneecious: male flower qieiclithiesas tania 
