W. WEST AND G. S. WEST : ALGA-FLORA OF YORKSHIRE. 13 



6. Chantransia pygmaea Kiitz. 



Mid W. — Eolton Woods. Ingleton. Douk Ghyll on the 

 western slope, and Heseltine Ghyll on the eastern slope of 

 Penyghent. Whernside. . 



7. Chantransia Hermannii (Roth.), Kiitz. 

 S.W.— North Dean. 



Mid W.— Shipley Glen. 



Family HILDENBRANDTIACE.S. 

 Genus HILDENBRANDTIA Nardo, 1845. 



8. Hildenbrandtia rivularis (Liebm.), J. Ag. 



[Syn. H. rosea Kutz. var. fluviatilis Kutz.]. 

 S.W. — Forming dark-red patches on rocks and stones in 

 streams and dripping-places, not frequent. Anston Crags (Rev. 

 Hild. Friend). 



Mid W.— In rill near Rawdon ! (H. T. Soppitt). Shipley Glen. 

 Gordale. Family LEMANEACEM. 



Genus LEMANEA Bory, 1808. 



9. Lemanea fluviatilis Ag. 



On rocks, stones, and wood in streams and torrents ; also in 

 mill-sluices. Generally where the force of the water is greatest. 



Mid W. — General, but scarce. Shipley Glen. Kildwick. In 

 the river Crimple, Spoftbrth ! (F. A. Lees). River Wharfe, Boston 

 Spa and Wetherby ! (F. A. Lees). Leathley. Near Harrogate ! 

 (T. Hick; LI. J. Cocks). Ripon (W. Brunton). Near Giggles- 

 wick. Ingleborough. 



S.W.— Upper Bradfield, near Sheffield (Rev. R. A. Gatty). 



N.W.— Cautley Spout. 



10. Lemanea torulosa (Roth.), Ag. 



Mid W. — On vertical face of rocks of waterfall, Malham 

 (iii. 1894). ^j^^gg FUCOIDEiE. 



Family HYDRURACE^. 

 Genus HYDRURUS Ag., 1824. 



11. Hydrurus penicillatus Ag. 



S.W. — Newsholme Dean, near Keighley (T. Hebden). 

 Mid W.— Esholt. 



