Fam. 7. Meteoriacez. 
Stem pendent, without paraphyllia. Leaves papillose; 
cells very small, dilated or narrow. Calyptra mitriform 
or cucullate. Dioecious, very rarely fruiting. 
Fam. 8. Hookeriacez. 
Stem neither tree-like nor pendent; paraphyllia none. 
Leaves smooth or (in Callicostella) papillose; cells mostly 
dilated. Calyptra mitriform. Monoecious or polygamous. 
Fam. 9. Leskeacez. 
Stem decumbent, often with paraphyllia. Leaves 
mostly papillose; cells usually dilated. Calyptra cucullate. 
Fam. 10. Entodontacez. 
Stem generally decumbent, rarely ascending but not 
tree-like; paraphyllia none. Leaves smooth; cells mostly 
narrow. Calyptra cucullate. 
B. Platylepidece. Endostomial segments broad. 
Capsule often asymmetric or curved. Calyptra cucul- 
late. Leaves sometimes falcate. 
a. Primary stem rhizomatic, mostly subterranean; 
secondary stems generally tree-like and suberect or ascend- 
ing. = . P. 
Leaves neither papillose nor faleate. | 
Fam. 11. Climaciacee. 
. Capsule symmetric or asymmetric; pedicel mostly 
=~ . Smooth. Stem often with paraphyllia. Leaf-cells mostly 
narrow. Branch-leaves often strongly serrate. 
b. Stem not tree-like, generally decumbent. 
Fam. 12. Thuidiacece. 
| Capsule generally asymmetric or arrol pedicel 
: generally smooth. Stem often with paraphyllia. Leaves 
usually papillose, not un — faleate; cells Fer : 
m DIT 
