62 MISSOURI BOTANICAL GARDEN. 
scarcely revolute on the borders and more narrowly areolate.— The B. 
alpinum var. angustifolium Husnot, Muscol. Gall., p. 247 (B. atlanticum 
Solms), seems to be the same plant. 
B. Notarisii Mitt. (Mielichoferia crassinervia Jur.) much resembles B. 
alpinum var. meridionale Sch. as to the vegetative system; but its peri- 
stome is far less evolute, the teeth of the exostome being narrower, less 
trabeculate and the endostome entirely wanting. 
37. B. caespiticium Linn. Sp. Plant. p. 1121, var. atlan- 
ticum Card. var. nova.— Sta. Maria (Trelease, Pl. Az. 
nos. 1380, a, 1380, 6, 1380, ¢). — Distrib. : Madeira. 
A forma typica differt foliis costa excurrente brevius cuspidatis, in 
comam densam glomeratis capsulaque minus abrupte pendula, subhor- 
izontalis vel inclinata, pro more angustiore. 
A striking form. 
38. B. caprLuarE Linn. Sp. Plant. p. 1121.— San Miguel 
(Godman). Flores (Trelease, Pl. Az. nos. 1378 and 
1380).— Distrib.: the five parts of the world. 
39. B.CANARIENSE Brid. Mant. p. 118, et Bryol. Univ. 1. p. 
672. — Graciosa (Brown, Pl. Az. no. 380, in part).— 
Disirib.: Canaries, Portugal, Corsica, France. 
40. B. pachyloma Card. sp. nova.—Terceira (Trelease, 
Pl. Az. no. 1381). San Miguel (Machado). 
Caulis brevis, sub perichaetio innovans, 5-7 millim, altus. Folia in 
comam congesta, obovato-oblonga vel subspathulata, madida erecto- 
patentia, sicca erecto-imbricata, vix flexuosa, circa 2 millim. longa, bre- 
vissime acuminata, toto ambitu limbo crassissimo 3-4-stratoso, superne 
remote et plerumque obsolete denticulato circumducta, costa viridi 
basi rubescente valida, apice cum limbo confluente in cuspidem crassam 
obsolete denticulatam breviter excedente; cellulis ovato- et oblongo- 
hexagonis, inferioribus elongatis subrectangulis laxioribus, infimis, in- 
anibus rubescentibus. Folia perichaetialia externa lineari-oblonga, lax- 
ius reticulata, intima minora, lanceolata, longius acuminata, limbo 
angustiore. Capsula in pedicello rubente flexuoso 12-15 millim. longo, 
inclinata vel subhorizontalis, oblongo-subcylindrica, basi attenuata, 
operculo convexo apiculato. Annulus? Peristomium JB. capillaris. 
Divicum videtur.— Pl. 7.— a, entire plant, nat. size; b, b, b, leaves 
14; ¢, leaf point X 130; d, transverse section of a leaf in the lower part 
60; e, transverse section of the border of the leaf < 260; f, capsule 
x 14. 
This species is very peculiar by the strongly thickened margin of 
