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YORKSHIRE NATURALISTS' UNION. 



» 



Class FLORIDE^E. 

 p-AMiLY BA TRA CIIOSPERME.^. 



Genus BATRACIIOSPERMUM Roth., 1797. 



1. Batrachospermum moniliforme Roth. 



Mid W. — Stream near Towton. AA^aslibiirn Valley. Blubber- 

 bouses (E. Ilowgate). Malham (H. Y. Parsons). Tcnyghent. 

 Leeds district (W. B. ^rurner). Mcanwood (J. Abbott). Baildon. 

 Sherburn Town Drain (F. A. Rces). Malliam Tarn (C. B. 

 Crawshaw and C. P. Hobkirk). Markinglon! (Rev. J. S. Tute). 



S.A\'. — Battye-ford near MirPield (H.F. Parsons). Upper Brad- 

 field (Rev. A. Gatty). Swineflcet ^Varping-Drain (H. F. Far- 

 sons). Skelmanthorpc. Allerton. 



Var. stagnale Ag. 



Mid W.—Malhani Cove (C. B. Crawshaw and C. P. Flob- 



kirk). 



2. Batrachospermum vagum (Roth.) Ag. 



Mid AV. — Kirkstall (W. B. Turner). Near Giggleswiek. 

 S.W.— Bingley. 



N.E.— Strensall (var.- W. B. Turner). Castle Howard. Scar- 

 borough Mere. 



Var. keratophytum (Bory) Sir. 

 Mid W. — In stream, Horton-in-Ribblesdale. 



3. Batrachospermum atrum (Dillw.), Flarv. 



Mid W.^Barkston (H. F. Parsons). Meanwood ! (J. Stub- 

 bins). 



Genus CIIANTKANSIA Kries, 1825. 



4. Chantransia chalybea (I-yngl).) Fries. 



S.W.— Near Halifax. Halnworth (T. Hebden). Marley, near 



Bingley. 



Mid W. —Baildon. 



5. Chantransia violacea Kiitz. 



S.W. — On dripping stones amongst Rhyiichosiegiuni rusci- 



forme, Horton Park, Bradford. 



Mid W.— Eldwick. Ingleborough. 



Trans. 'Y.N.U., 1896(1)11!;. Aug. 1900). Bot. Series, Vol. 5. 





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