22 SYNOPSIS OP BEITISH MOSSES. 



hexagorLo-rectangular, nerve vanisliing. Caps, globose- 

 pyriform, on a curved seta, without striae. Perist. 

 absent, lid small, plano-convex. 



66. Philonotis, Brid. PI. small and decumbent, or 

 erect and larger. Br. at floral apex verticillate or 

 fasciculate, tlie rest dicbotomous, radiculose-tomentose. 

 L. small, erect, sometimes secund, lanceolate, strongly 

 serrate, cells as in Bartramia. Caps, on a long seta, 

 cernuous, globose, striate, lid small, oblique. Perist. 

 internal, with distinct binate cUia. 



67. Brentelia, fifc/ip. PI. robust, irregularly branched, 

 tomentose. L. somewhat sheathing, more or less 

 broadly lanceolate, deeply 5-sulcate, nerve thin, 

 vanishing. Caps, pendulous, on a curved seta, 

 spherical or ovate-oblong, striate, sulcata when dry, 

 lid small, mamillate. 



Tribe xviii. Betacej!. 

 Perennial. L. cells either all parenchymatose or 

 prosenchymatose above and parenchymatose below. 

 Calyptra coriaceous, narrow, cucuUate, mostly de- 

 ciduous. Caps, on a long seta, with the neck long or 

 shortly pyriform, or subspherical, erect, cernuous, 

 inclined, or pendulous. Perist. single or double, 

 mostly the latter, outer teeth trabeculate and lamellate 

 within. 



68. Mielhiehhoferia, N, and H. L. lanceolate, 

 smooth, serrate, cells uniformly hexagono-rhomboid or 

 linear. Caps, erect or cernuous, pyriform or clavate, 

 seta terminal on a branch. Perist. single, of 16 

 narrow slender teeth, confluent at base. 



69. Orthodontium, 8chw. PI. small, caespitose. L. 

 narrow, flexuose, cells hexagono-rhomboid. Caps. 



