Jo YORKSHIRE NATURALISTS' UNION. 



N.W. — Mossdale Moor, Widdale Fell. Snaizeholme Fell. 

 Bog, near Widdale Beck. 



N.E. — Strensall Common. Carlton Bank. 



Family CLADOPHORACE^. 

 Genus CH^TOMORPHA Kiitz., 1845. 

 loi. Chaetomorpha sutoria (Berk.) Rabenh. 

 S.W. — In trough, Heaton, with Rhizoclonitim hieroglyphicum 

 var. tortuosum. 



Mid W. — Attached to stones, in stream, near Giggleswick. 



Genus RHIZOCLONIUM Kutz., 1843. 



102. Rhizodonium hieroglyphicum Kiitz., 1843; em. 

 Stockm., 1890. 



S.W. — In canal, Frizinghall. 



Mid W. — Shipley Glen. In stream, Giggleswick. 



N.W. — Spring on Dodd Fell, 1,500 feet. Duerley Beck near 

 Hawes. 



N.E.— Carlton Bank. 



Var. kochianum (Kiitz.), Stockm. [Syn. Rhizodonium 

 kochianwn Kiitz., 1845 ; R.flavicans Rabenh., 1868 

 non Jurg., 1824; Cooke, Brit. Freshw. Alg., p. 141, 

 t. 54, f. 8 ?]. 



N.E. —Cliffs, near Scarborough. 



S.E. — Newsholme, near Howden. 

 Var. tortuosum (Kiitz.) Stockm. 



S.W. — In trough, Heaton, with Chatomorpha sutoria. 



Mid W. — Shipley Glen. Ingleton. 



N.W.— Cautley Spout. 



Genus CLADOPHORA Kutz., 1843. 



103. Cladophora crispata (Roth.), Kiitz. 

 S.W.— Bradfield (Rev. R. A. Gatty). Halifax. Bradford 

 Mid W.— Shipley Glen. Bolton Woods. Dropping Well, 



Knaresborough. Oughtershaw Moss. Leeds (W. B. Turner). 

 N.E. — Near Middleton. Near Scarborough. 



Trans. Y.N.U., 1896 (pub. Sept. 1900). Bot. Scries, Vol. 5. 



