SYNOPSIS OP BRITISH MOSSES. 33 



quadrate, and rhomboid, basal narrowly oblong. Caps, 

 short, turgid, ovate, lid with a long beak. Perist. ext. 

 t. long, densely lamellate, int. processes perforate, with 

 long appendiculate cilia. 



Tribe xxvii. Hookeeiacej;. 



PI. short or longer, branched. L. narrow, patent, 

 secund or broad and complanate, singly or doubly 

 nerved, cells lax. Per. 1. scarcely sheathing. Calpytra 

 conical or mitrate, almost entire at base, or lobed and 

 fimbriate at base, papillose or squamous. Caps, on a 

 smooth or papillose seta, cernuous or horizontal. 

 Perist. large, double. 



Fam. 1. Daltoniae. 



PI. small, slender. L. patent, narrow, cells narrowly 

 rhomboid, laxer at base. Calyptra fimbriate at base. 

 Seta generally papillose. Perist. ext. t. linear-lanceo- 

 late, subulate, int. processes narrowly subulate from a 

 basal membrane. 



99. Daltonia. L. ovate and linear-lanceolate, margin 

 thickened, more or less flexuose when dry, singly 

 nerved nearly to apex, lower, cells oblong-hexagonal, 

 hyaline, quadrate-dilated at base. Caps., calyptra, and 

 ■perist., as above. 



Fam. 2. Hookerise. 



PL taller. L. narrow or broad, acuminate, obtuse, 

 truncate, binerved, rarely nerveless, cells lax. Calyptra 

 mitrate, lobed or entire. Caps, subhorizontal, lid 

 beaked. Perist. ext. t. long, entire, solid, densely 

 articulate, int. processes from a carinato-plicate Ibasal 

 membrane, carinate, and as long as outer teeth, 



D 



