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NORTH DERBY SHIEE MOSSES. 

 By John Whitehead. 



The portion of Derbyshire with which I propose to deal is 

 included in the district which commences near Ashbourne and 

 Matlock in the south, and extends to Glossop and the extensive 

 moorlands drained into the head waters of the Derwent and Etherow 

 in the north. The geological formation of the southern part of the 

 division which extends from Ashbourne and Matlock to Chapel-en- 

 le-Frith and Castleton is mostly mountain limestone, thus accounting 

 for the occurrence of so many limestone-loving mosses. The northern 

 part of the division is on the millstone grit and coal measures, and 

 includes Kinder Scout, the highest point of the county, with the 

 extensive moorlands surrounding it. That the district is favourable 

 to mosses, and has been well worked by experienced collectors, is 

 shown by the following list, containing 273 species and about 

 51 varieties, being not far from one-half the number recorded for 

 Great Britain and Ireland. 



The names of collectors follow the localities. The author is 

 responsible for those followed by ! 



Sphaf/nwn acutifolium Ehrh. Frequent on Kinder Scout, Charles- 

 worth Coombs, and near Buxton. — b. deflexum Schpr. Kinder 

 Scout, Holt !--c. Imtevirms Braithw. Kinder Scout, Holt !— Var. 

 m. patulum Schpr. Kinder Scout, Holt I — S. fimbriatum Wils. 

 Kinder Scout. — S. stnctum Lindb. Kinder Scout, Holt ! — 8. 

 squarromm Pers. Charlesworth Coombs ; Kinder Scout.— S. inter- 

 medium Hoffm. Charlesworth Coombs ; Kinder Scout. — 8. cuspi- 

 Ehrh. Kinder Scout ; Axe Edge, near Buxton.— 8. riqidum 

 Schpr. var. b. compactum Brid. Kinder Scout ! — Var. c. squarro- 

 suhtm Russ. Kinder Scout, Holt IS. mbsecundum Nees. Kinder 

 Scout ; Charlesworth. — Var. b. contortum Schultz. Charlesworth 

 Coombs ; Kinder Scout. — Var. d. auricvlatum Schpr. Kinder 

 Scout ! — S. papillosum Lindb. Kinder Scout, Holt I — 8. cymbi- 

 folium Ehrh. Charlesworth Coombs ; Kinder Scout. — Var. c. 

 squarrosulum Nees. Kinder Scout, Holt. 



Amlrecea petrophila Ehrh. Charlesworth Coombs ; Kinder Scout; 

 Edale. — A. crassinervia Bruch. Kinder Scout, West; near Wood- 



Gymnostomum rupestre Schwg. var. b. ramosissimum Br. & Sch. 

 Castleton, Roqers ; Miller's Dale, Holt.—G. calcareum Nees & Horn. 

 Chee Dale, Holmes; Monsal Dale, Raven's Dale, and Ashwood 

 Dale, Holt. — G. curvirostrum Ehrh. Wet rocks, Castleton, Holt ! 

 —Var. b. commutatiim Mitt. Raven's Dale, Holt.—G. mirmst.»,nim 

 Hedw. Castleton ; Monsal Dale, Miller's Dale, and Lathkill Dale. 

 — G. squarrosum Nees & Horn. Banks at Mellor, Scholejield. — G. 

 tortile Schwg. Lathkill Dale, Wilson; Ashwood Dale ! 



Weissia viridula Brid. Banks at Edale; Cressbrook Dale; 

 Whaley Bridge and Mellor. — W. cirrhata Hedw. Rocks and walls, 

 Charlesworth ; Mellor and Whaley Bridge. 



Journai, op Botant.— Vol. 32. [July, 1894.] o 



