W. WEST AND G. S. WEST: ALGA-FLORA OF YORKSHIRE. TQ 



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54. Hormidium parietinum (Vaucli.), Kiitz. 



[Syn. UlotJirix parietina Kiitz., 1849]. 

 S.\V.— Dcwsbury (C. B. Crawshaw and C. P. Hobkirk). 

 Halifax. Bradford. 



Mid "W.— Leeds. Skiplun. 



Cknus IIORMrSCIA Fries, 1835; em. Aresch., 1866. 



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55. Hormiscia subtilis (Kiitz.), De Toni. 



[Syn. UloiJirix siihlilis Kiitz.]. 



S.W.^-^Ogdcn (dough. 



Mtd AV.— Rowkand Knotts. Wigton Moor, 



N.W.— J)odd Fell, at 2,000 feet. 



Var. subtilissima Rabenli., 1868. 



[Syn. Ul 



rL\ suhlilisdina Rabenh., 1S63]. 



S.W. -Bradford (ix. iSy6). 



Mid AV.™ Baildon (iv. 1895), ^niongst mosses on dripping 

 rocks. Cells 1^- — 4 times longer than the diameter, with a very 

 pale green, parietal chloro[)hyl]-plate : thickness 4 /i. 



Var. variabilis (Kiitz.), Kirchn. 



[Syn. UlotJirix variabilis Kiitz.]. 



S.W.— Holmfirth (C. P. Hobkirk). Crimsworth Dean. Ogden 



Clough. Horton. Heaton. Keighley. Cragg Vale, towards 



Blackstonc Edge. 



Mid W.— Shipley Glen. Hawksworth. Earl's Seat. Bride 

 Cross, above Earnley Moor. Langcliffe. Simon's Fell. Linn 



Ghylk Ribblehead. Malliam. 



N.W.— Cowgill Wold Moss, Widdalc Fell. Bog near Wid- 



dale Beck. Cronkley Fell. 



N.E. ^Carlton Bank. 

 Thirsk. Malton. 



;Sx\ar Scarl)oroug]). Pilmoor, near 



Var. tenerrima (Kiitz.), Kirchn. 



Syn. UlotJirix tcncrri?na Kiitz.]. 



S.W.— Ogden Clough. Swill Hill HohnHrth (C.R Hobkirk). 



Barnslcy. Bradford. Heaton. Keighley Moor. 



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