GRIMMIEI. 241 



Allied to the last, but with a short hair-point, and denser 

 sinuated reticulations at the base. 



9. G. torta, Hornsch.; densely pulvinate, soft, flexible; 

 leaves erecto-patent, spirally curved round the stem when dry, 

 lanceolate, keeled, acuminate, the lower pointless, the upper 

 very shortly hair-pointed. — Hook, fy Wils. t. xxxii. ; Grev. Sc. 

 Crypt. Fl. t. 199. 



On alpine rocks. Always barren, both in this country and 

 on the Continent. 



Forming dense tufts, bright-green above, 1—2 inches high, 

 dark below, the individual plants easily separating from each 

 other. Leaves three-ranked, channelled above along the 

 nerve, sometimes but not always hair-pointed; margin 

 slightly reflexed ; leaf-cells larger at the angles, on the disk 

 narrow, subquadrate or punctiform upwards. The arrange- 

 ment of the leaves when dry calls to mind Hypnum trifa- 

 rium. 



10. G. spiralis, Hook, fy Tayl. ; dioicous; pulvinate; stems 

 slender ; leaves lanceolate, hair-pointed, erecto-patent, spirally 

 imbricated when dry ; fruitstalk curved ; sporangium small, 

 ovate, nearly even; lid short, obtuse; ring broad. — Hook. 

 &; Wils. t. xxxii. ; Grev. Sc. Crypt. Fl. t. 203. 



On exposed alpine rocks. Ireland, Scotland, and England. 

 Bearing fruit in autumn. 



Forming large dense cushions. Stems easily separating as 

 in the last species; margin of leaves recurved; sporangium 

 with eight obscure furrows or quite even ; veil lobed at the 

 base ; teeth bifid, recurved when dry ; leaf-cells as in the last, 

 except that those at the angles are very large. 



11. G. orbicularis, Br. Sf Schimp. ; monoicous; densely 

 tufted; leaves crowded, oblongo-lanceolate, hair-pointed; 

 sporangium roundish, fainter striate; fruitstalk curved; lid 



