Grimmiace^.J 52 [Glyphomitrium. 



Hab.— Walls and rocks ; rare. Fr. 5—6. 



On walls, Coniston (Prof. Barker 1867) ! ! Block of limestone in a bridge at Staveley, 

 near Kendal {Binstead 1886) ! ! 



Closely resembling Grimmia anodon and criniia, but known at once by the 

 plicate leaves, with rectangular leptodermous cells at base. 



GLYPHOMITRIUM Brid. 



Plants short, gregarious or pulvinate. Leaves Jong, narrow, 

 crisped, opake, areolation minute and quadrate above, laxer and linear 

 or rectangular at base. Capsule exserted. Calyptra mitr^form, 

 campanulate, deeply lobulate at base and longitudinally plicate or 

 smooth ; per. of 16 lanceolate teeth, entire or bicrurous or approximate in 

 pairs, papillose or densely trabeculate. — Der. yXu^u to carve, /xtrpiov the 

 calyptra. 



The three genera here united into one have the closest affinity in the 

 form and structure of their leaves, which in the dry state assume a peculiar 

 hooked position, and G. Daviesii only differs in the shorter and broader teeth 

 of peristome, which have a narrow membranous border. About 36 species 

 are known, the majority belonging to the section Bracliystelmm, represented 

 here by B. polyphyllum. 



Clavis to the Species. 



Teeth lanceolate, with a hyaline border. Daviesii. 

 cleft into two papillose legs. 



Plants robust, seta straight. polyphyllum. 



short, seta flexuose, cygneous. saxicola. 



GLYPHOMITRIUM DAVIESII {Dich.) Brid. 



Autoicous ; densely pulvinate. Leaves linear-lanceolate, incurved, 

 entire. Perich. bracts large, convolute. Caps, on a short straight 

 seta, subglobose ; cal. covering all caps, contracted and laciniate at 

 base ; teeth 16 in pairs, broadly lane. (T. LIII, B.) 



Syn. — Bryum Daviesii Dicks. PI. crypt. Fasc. II, p. 3, t. 7, f. 6 (1790). Wither. Bot. arr. Br. 

 veg. 3 ed. iii, 835 (1796). Hull Br. fl. P. 2, 264 (1799). 



Encalypta Daviesii Smith Eng. Bot. t. 1281 ; Fl. brit. iii, 1183 (1804). 



Grimmia Daviesii Brid. muse. rec. II, P. I, 61 (1798). Turn. Muse. hib. 24 (1804). 

 Hook. Tavl. Muse. brit. 39, t. 13 (1818). Gray Nat. arr. br. pi. i, 727 (1821). HooK. 

 Grev. in Edin. Journ. Sc. i, 131 (1824). 



Griffithia Daviesii R. Br. in Linn. Trans, xii, 575 (iSig). 



