X MOSSES WITH A HAND-LENS 



PAGE 



Capsules gymnostomous, leaf-cells large, clear 



Physconritrium in Funariaceae. 90 



Capsules peristomate 13 



13. Capsules with a large swollen hypophysis, which 



is usually larger and more conspicuous than 

 the spore-bearing part ; leaves not papillose ; 

 growing on decaying animal matter Sp lac hnaccae. 88 



Capsules without hypophysis (some with slender 

 necks) 14. 



14. Capsules strongly plicate when dry and empty, 



often strongly unsymmetric 15.- 



Capsules not plicate or striate when dry or only 



very slightly so 18. - 



15. Peristome single Dicranaceae. 34 



Peristome double 16.- 



16. Capsules subglobose ; inner peristome without 



cilia, or cilia very small Bartramiaccae. 94 



Capsules elongated, cilia well developed 17... 



17. Capsules strongly unsymmetric with the mouth 



nearly on one side; segments opposite the 



teeth Funariaceae. 89 



Capsules only slightly unsymmetric; segments 



alternating with the teeth Aulacomniaceae. 92 



18. Capsules subpendent to pendent; peristome 



double Bryaceac. 96 



Capsules often unsymmetric or inclined, but 

 never subpendent; peristome single, teeth 

 usually forked or twisted or both 19. 



19. Leaves nearly always crisped when dry; per- 



istome in most cases of filiform twisted teeth. 



Tortulaccae. 63 



Leaves rarely crisped ; peristome of 16 reddish 



forked teeth which are never twisted 



Dicranaceae. 34 



20. Aquatic, long and floating, with leaves straight ; 



or plants shorter with falcate-secund leaves 

 and often only partially submerged ; capsules 

 immersed or emergent, never exsertecl. . . . 



. . . .Fontinalaceae. 146 



