Brown. — On the Genus Grimmia. 



421 



l. 

 2. 

 3. 



4. 



1. 

 2. 

 3. 

 4. 

 5. 



Fig. 20. — Grimmia versabilis. 

 Capsule, with operculum. 

 Perichsetial leaves. 

 Upper stem leaf. 

 Middle stem leaf. 



Plate XXXII. 



Fig. 22. 

 1. 



Fig. 21.- — Grimmia finitima. 

 Capsule, with operculum. 

 Perichsetial leaves. 

 Outside of perichsetial leaves. 

 Upper stem leaf. 

 Middle stem leaf. 



-Grimmia rotunda. 



Capsule, with operculum. 



2. Perichaatial leaves. 



3. Stem leaves. 



Fig. 



23. — Grimmia obovata. 



1. Capsule, with operculum. 



2. Perichsetial leaves. 



3. Upper stern leaves. 



Plate XXXIII. 



Fig. 24. — Grimmia belli. 



1. Capsule, with operculum. 



2. Calyptra. 



3. Inner perichsetial leaf. 



4. Upper stem leaf. 



5. Middle stem leaf. 



6. Lower stem leaf. 



Fig. 25. — Grimmia flexifolia. 



1. Capsule. 



2. Immature capsule, with calyptra. 



3. Same with calyptra removed. 



4. Inner perichffitial leaves. 



5. Upper stem leaf. 



6. Lower stem leaf. 



Fig. 26. — Grimmia pusilla. 



1. Capsule and operculum. 



2. Inner perichsetial leaf. 



3. Outer perichsetial leaf. 



4. Upper stem leaf. 



5. Middle stem leaf. 



Fig. 27. — Grimmia climinuta. 



1. Plant, with capsule. 



2. Perichsetial leaves. 



3. Upper stem leaves. 



4. Middle stem leaves. 



Plate XXXIV. 



1. 

 2. 

 3. 

 4. 



5. 



Fig. 28. — Grimmia cockaynei. 



Capsule, with operculum. 

 Calyptra. 



Perichsetial leaves. 

 Middle stem leaf. 

 Upper stem leaf. 



Fig. 29.- 



-Grimmia petriei. 



1. Capsule. 



2. Operculum. 



3. Calyptra. 



4. Perichsetial leaves. 



5. Upper stem leaves. 



Fig. 30. — Grimmia stevensii. 



1. Capsule. 



2. Operculum. 



3. Calyptra. 



4. Perichsetial leaves. 



5. Upper stem leaf. 



6. Middle stem leaves. 



Fig. 31. — Grimmia webbi. 



1. Capsule. 



2. Operculum. 



3. Perichsetial leaves. 



4. Leaves outside of ditto. 



5. Middle stem leaf. 



6. Upper stem leaf. 



