25 
69. Oligotrichum. Leaves lamelliferous on both 
sides, not contracted above the base, more or less crisped; 
lamelle not numerous, those of the upper side sinuolate, 
those of the under side usually serrate. Capsule sub- 
symmetric without angles and apophysis; calyptra sparingly 
hairy or glabrous. 
10. Psilopilum. Leaves not lamelliferous at back, 
contracted above the base, rigid; lamellee numerous, sinu- 
olate. Capsule asymmetric without angles and apophysis; 
ealyptra glabrous. 
71. Baríramiopsis (new genus). Leaves not lamellife- 
rous at back, long-ciliate near the sheathing base, flaccid, 
more or less crisped when dry; lamelle few, serrate. 
Capsule without angles and apophysis; teeth, lid and 
ealyptra unknown. 
b. Leaves lamellate only at the upper side; lamelle 
neither sinuolate nor serrate. 
72. Catharinella (new genus) Leaves not con- 
tracted above the (more or less or not sheathing) base, 
flaccid, erisped when dry; lamellz numerous, not densely 
cohering. Capsule papillose without angles and apophysis; 
ealyptra densely hairy, short-acuminate. 
73. Polytrichum. Leaves abruptly contracted above 
the distinct sheath, often rigid, sometimes incurved, not 
crisped; lamelle densely cohering, seldom (in one species) 
few (about 10), otherwise numerous. Capsule smooth or 
papillose, often with angles and apophysis; calyptra densely 
hairy with a not long acumen, rarely (in one species) 
sparingly hairy and long-acuminate. 
Fam. 18. Georgiaces. . a 
74. Georgia. Capsule exserted. Leaves smooth; 
cells small, the upper short, — or oval. Plants 
small, sometimes minute. y 
"iden 19. | Fissidentacoz. 
nbi Fissidens. ‘Peristomial t teeth. aio in LO | Hs 
