34 SYNOPSIS OE BEITISH MOSSES. 



100. Pterygophyllum, Brid. L. broadly complanate, 

 arge, obliquely and densely imbricate, smooth, ovate 

 or acuminate, nerveless, margin scarcely lyordered, 

 entire. Caps, small. Calyptra mitrate, lobed. Perist. 

 outer teeth, reddish, with a single medial line, inner 

 processes with rudiments of cilia. 



101. Hookeria, Tayl. L. soft, nerve double, margin 

 generally bordered, serrate. Calyptra shortly incised 

 at base. Perist. outer t. with two reddish prominent 

 ridges enclosing a yellowish furrow, int. processes 

 entire, no trace of cilia. 



Tribe xxviii. FABRONiACEiE. 



PL small, creeping. L. patent or subsecund, ovate- 

 lanceolate, nerveless or shortly nerved, smooth, cells 

 rather lax, hexagono-rhomboid or rhomboid. Calyptra 

 cucuUate. Caps, erect, regular or slightly curved. 

 Perist. single or double, 8 — 16 teeth, internal a torn 

 membrane or of filiform cilia. 



102. Habrodon, Schp. L. nerveless, soft, squarrose, 

 ovate-lanceolate, longly and acutely acuminate, entire ; 

 per. 1. eroso-denticulate, hyaline. Caps, narrowly 

 oblong, lid conical, muticous. Perist. t. linear-lanceo- 

 late, connivent when dry, 8 bi-geminate or 16 geminate, 

 int. articulate, filiform cilia without basal membrane. 

 Annulus narrow, hyaline. 



103. Myrinia, Schp. Csespitose, pulvinaj;e. L. ovate- 

 lanceolate, not equilateral, entire, obsoletely nerved, 

 smooth. Caps, oblong, subcylindric, regular or slightly 

 incurved, lid conical. Annulus absent. Perist. ext. t. 

 narrowly lanceolate, slender, hyaline, with a sinuous 

 dorsal line, int. processes from a broad carinato-plicate 

 basal membrane. 



