143 
enlarged and longer pointed, less regularly and less distinctly ser- 
rate; the upper or perichetial ones are suddenly much enlarged, 
mostly obovate-oblong or subspatulate, very abruptly cuspidate, 
erose serrate above ; costa percurrent or shortly excurrent; areola- 
tion at the base mostly rather long, narrow and straight, or of the 
innermost ones more lax and subhyaline. Capsule large, when dry 
round-ovate and very obtuse, with a papulate apiculus, dark brown, 
shining, of a solid texture, when moist slightly acuminate, immersed 
on a very short pedicel. Calyptra large, broad, dimidiate-campan- 
-ulate, entire at the base (but slightly fissured under pressure), split on 
one side to the base of the slender persistent style, scarcely acumi- 
nate. Spores yellow, papillose, about yyy of an inch in diameter. 
Antheridia about 3, usually naked, and always completely hidden in 
the axils of one or two of the lower leaves, but sometimes furnished 
with a single narrow ecostate perigonial leaf, or, according to Sut- 
LIVANT, with 3-5 of these leaves, also with two or three small para- 
physes.—Light sandy soil, S. Car., Ravenel, 1876. 
Readily distinguished from P/. Ravene/it, by its more clavate stems, 
shorter, and more densely imbricated, not carinate leaves, darker color- 
ed, and more solid capsule on a shorter pedicel, larger calyptra, and by 
the antherdia situated much lower down on the stem (not in the axils of 
the comal leaves). The true P/. xervosum, as partially figured and 
described in HooKer’s Musc. Exot. ¢. 105, is certainly different, 
being nearest to P/. Ravenelii, and possibly identical with it. P/. 
Robbinsoni, Mont., to which Mitten has referred our Moss, has autoi- 
cous inflorscence, the male flower being of moderate size, and rather 
conspicuous ; the upper leaves are narrower and less abruptly acu- 
minate with longer points, the lower ones are rather more acute, etc. 
(I have not seen the spores nor the calyptra.) 
4. Bruchia Sullivanti. | Bruchia flexuosa, SuLLIv. Icones (excl. 
descript.) #13; Aust. Musc. Appalach. n. 56; haud SCHWA&GR.|— 
Statura facieque Br. flexuosa, sed inflorescentia paroica foliis sub- 
papillosis, etc., statim dignoscitur. 
Capsule concolorous, the collum much constricted in drying, 
pale yellow, becoming fuscous. Spores minute (about zhy- 3) of 
an inch in diameter), yellow, opake, papillose. Leaves mostly 
longer than the pedicel (often over-topping the capsule), more or 
less papillose above (often very obscurely so), nearly or quite 
entire.—Occurs on damp ground, from New England to Florida and 
Louisiana. 
Bruchia nigricans (S. & L.)—Br. flexuosa var. nigricans S. & L. 
Exsic. Ed. 2.n. 42. A precedente proxima distincta sporis fere 
duplo majoribus, pedicello longiore strictiore. etc. Differt a 
sequente foliis levibus collo breviore, etc.—Capsule concolorous? 
Spores yellow, as in all the species! in size and texture about as in 
Br. brevipes, Hallii, Texana and Dounellii. eaves nearly or quite 
as long as in the preceding species. The true Bruchia flexuosa, 
ScHWAGR., with autoicous inflorescence, and with spores about as in. 
Br. Sullivanti, is given in S. & L. Exsic. ed. 2, n. 41. The specimens 
were probably collected in Ohio. I have not seen it from any other 
source. 
