20 SYNOPSIS OF BRITISH MOSSES. 



above and lax hexagonal below, sometimes papillose. 

 Caps, cernuous or erect, oblong, with or without neck, 

 or more or less globose, with or without striae. Perist. 

 rarely absent, single or double. 



Fam. 1. Amblyodontse. 

 L. soft, cells lax, hexagono-rhomboid. Caps, with a 

 long neck. Perist. double, ext. t. half the length of 

 the int. processes, incurved when dry. 



59. Amblyodon, P. Beauv. L. lower remote, upper 

 clustered, widely lanceolate, denticulate at apex, cells 

 large, nerved nearly to apex. Caps, subpyriform, 

 cernuous, incurved, with a small oblique mouth. Int. 

 perist. free, of 16 narrow processes. 



Fam. 2. Meesiae. 

 L. cells minute, thickened, hexagono- quadrate, rarely 

 lax and thin. Caps, obovate or subglobose, cernuous, 

 lid small, oblique. Perist. double, 16 short obtuse 

 teeth, more or less united with inner, which is a mem- 

 brane deeply divided into 16 narrow carinate processes 

 longer than the teeth, cilia absent or rudimentary. 



60. Meesia, Medv). PL tall, radiculose, and tomen- 

 tose. L. lanceolate or subulate, upper in a terminal 

 cluster, obtuse, erect, or spreading, cells densely 

 hexagono-rectangular. Caps, obovate, with a long 

 neck tapering into the long seta. Perist. as above. 



61. Paludella, Ehr. PL tall, strongly radiculose 

 and tomentose. L. squarroso-recurved, decurrent, 

 ovate-lanceolate, nerved nearly to apex, cells dense, 

 roundish, papillose. Caps, cernuous, oblong, on a long 

 seta, slightly curved, with a short neck. Perist. outer 

 teeth and inner processes of equal length. 



