32 CRTPT06AMIA. 



inner peristome broad, split on the keel, ciliola3 in pairs, appendicu- 

 late; annulus broad. Operculum unusually large, subhemispherical, 

 apiculate. Dioicous. 



B. pattens, Swartz, and B. turhinatum, Hedw., associate closely 

 with this species : the first, however, has decurrent leaves with a 

 thickened recurved border; the second has a symmetrical straight 

 capsule; in both the operculum is much smaller than in B. Mega- 

 lostegium. 



Plate 7, A. — Bryum megalostegium j four plants, of the natural 

 size. Fig. 1. A plant, 2. Perich^tial leaves. 3, 4, 5, 6, 7, 8. Stem 

 leaves. 9. Cross section of leaf. 10. Portion of base of leaf, show- 

 ing the reticulation. 11. Point of leaf, showing the same. 12, 13, 

 14, 15. Capsules. 16. Portion of the peristome. 17. Vertical sec- 

 tion of the peristome. 18. Points of teeth of same. 19. Vaginual 

 with archegonia and paraphyses. — Details magnified. 



4. Bryum Auberti, Brid. 



Bryum Auberti, Brid. Bryol. Univ. 1, p. 711 ; Schwsegr. Suppl. 1, 2, p. 132, t. 80. 



Hab. Feejee Islands. The specimens, though scanty and imper- 

 fect, accord well with Schwsegrichen's figure above cited. 



5. Bryum nivale, O. Mull. 



Bryum nivale, C. Miill. Synop. Muse. 1, p. 262. 



Hab. Casa Cancha, Peru. Snow-line of the Cordilleras, near 

 Santiago, Chili. 



6. Bryum c^spiticium, Linn. 



Bryum empiticium, Linn. Sp. PI. 1586; Bryol. Europ. 4, Bry. Monog. p. 70, t. 34. 



Hab. Sandwich Islands. 



