134 Yorkshire naturalists' union. 



S.W. — Keighley Moor. 



This is a very marked variety. 



Genus UROCOCCUS Kiitz., 1849. 



651. Urococcus Hookerianus (Hass., 1845). 



Mid W, — Knaresborough Dropping Well (Prof. G.J. AUman). 



652. Urococcus Allmani (Hass., 1845). 



Mid W. — Knaresborough Dropping Well (Prof.G.J.Allman). 



653. Urococcus insignis (Hass., 1845) Kiitz., 1849. 

 [Syn. Chroococcus macrococcus Rabenh., and var. 

 aureus Rabenh.]. 



S.W.- Keighley Moor. 



Mid W, — Whernside. Holden Ghyll, near Keighley. Black 

 Hill, near Settle. Cam Fell. Bowland Knotts. Ingleton. 

 N.W. — Great Shunnor Fell. Swaledale (up to 2,200 feet). 

 N.E. — Cornelian Bay. Pilmoor, near Thirsk. 

 S.E.— Near Sutton. 



Genus DACTYLOTHECE Lagerh., 1883. 



654. Dactylothece Braunii Lagerh. 



SiW. — Forming a gelatinous green stratum with Mesot<znium 

 caldariorum ( Lagerh. )Hansg., in greenhouses, Bradford (ix. 1896). 

 Mid W. — On wet rocks, Ilkley (vi. 1897). 

 This species has not previously been recorded for the British 



Isles. 



Sub-Family Protococcace^. 



Genus STICHOCOCCUS Nag., 1849. 



655. Stichococcus bacillaris Nag., 1849. 



S.W. — Bradford. Saltaire, forming a dark-green stratum 

 around the bases of trees. Damp, shady rocks near Bingley. 



Mid W. — Bolton Woods, on damp wood and stones. Lang- 

 cliffe, near Settle. 



N.E.— Gormire (W. B. Turner). 



656. Stichococcus variabilis West & G. S. West, 1896. 

 S.W. — Horton Park, Bradford, forming a dark-green mucous 



stratum on stones subject to the spray of a waterfall. 



Trans. Y.N.U., 1899 (pub. July 1901). Bot. Series, Vol. 5. 



