574 THE ORTHOTRicHE^ OF YORKSHIRE, [October, 



sule pyriform^ wide-mouthed, faintly ribbed in the upper half; 

 teeth erect when dry ; cilia 8 ; calyptra brown, very hairy. 

 Rocks. July, August. High Force, Teesdale. 



13. 0. Lyellii, Hook. Dioicous; leai^es long and acuminate, 

 squarrose, rough with papillee and brown gemmse; cilia 16, red, 

 articulate; calyptra conic-campanulate, hairy. Trees in woods. 

 July. Rare in fruit. Gordale, Malham, etc. 



14. O. diaphanum, Schrad. Stems short; leaves ovate-acu- 

 minate, with rough, diaphanous points; cilia 16; calyptra cam- 

 panulate, scariose. Trees and walls. May, June. Very com- 

 mon on hedges, etc. Leaves almost piliferous. 



15. O. leiocarpon, B. and S. Leaves lanceolate, imbricated 

 when dry; capsules smooth, without ribs; cilia 16, erose-arti- 

 culate. Trees. Spring. The only species with a ribless capsule. 



B. Pedicel much exserted, two or three times as long as the capsule, 

 t Calyptra campanulate, smooth. 



16. 0. pulchellum, Smith. Tufts small ; leaves lanceolate, 

 pale-green, somewhat crisped when dry; capsule small; outer 

 teeth 16, red ; cilia 16. Trees. May, Jmie. 



ft Calyptra very hairy ; ochrea indistinct. — Ulotrichum, Bry. Eur. Consp. 

 1. Leaves lanceolate, not crisped when dry. 



17. O. Hutchinsia, Smith. Tufts close, dark-brown or green; 

 leaves rigid, opaque, appressed when dry; capsule subclavate, 

 furrowed; teeth 16, paired; cilia 8. Alpine rocks. July. Stones 

 in the Greta, Mr. Borrer ; between Scawton and the Hambleton 

 Hotel, R. Spruce. 



3. Leaves lanceolate from an ovate dilated base, crisped when dry, — 



CbISPULtE. 



18. 0, Drummondii, Hook, and Grev. Stems creeping; cap- 

 sule oblong-pyriform, with distant ribs; peristome single, of 16 

 long, white, bigeminate teeth. Rare. Trees, alpine glens. 

 August. Lowdale, Hackness, and High Force, Teesdale; Blea 

 Beck, A. 0. Black; Boltby and Highcliffe, /. G. Baker. 



19. 0. Bruchii, Brid. Stems erect; leaves yellowish-brown, 

 perichsetial leaves larger, erect when dry ; capsules ovate-pyri- 

 form, olive-brown, apophysis rounded, seta long and twisted, 

 ribs distant ; teeth 8, coloured ; cilia 8, of one row of cells ; 



