I06 YORKSHIRE NATURALISTS' UNION. 



Cylindrospermum macrospermum K. 



Bradford. W. West and J. E. Wilson. 



Calothrix mirabilis Dillw. Malham Tarn. W. West. 

 Nostoc sphaericum Pair. 



Ingleton. Abbott, Emsley and Turner. 

 N. coeruleum Lyfigb. Baildon. W. West. 



Monostroma bullosum Thur. 



Roundhay. Abbott, Emsley and Turner. 



Schizogonium murale -Af; Bradford. W. West. 



Roundhay. Abbott, Emsley and Turner, 

 Botrydina vulgaris K. 



Headingley. Abbott, Emsley and Turner. 



Pleurococcus vulgaris Menegh. The most abundant alga 

 everywhere (if not consisting of the gonidia of Lichens). 



W. West. 

 Coccochloris protuberans Spreng. 



Adel. Abbott, Emsley and Turner. 



Tetraspora gelatinosa Desv. 



Adel. Abbott, Emsley and Turner. 



Apiocystis Brauniana Naeg. 



Adel. Abbott, Emsley and Turner. 

 Glaeocapsa ampla K. 



Bramhope. Abbott, Emsley and Turner. 



Ophiocytium majus Naeg. Aldfield. J. S. Tute. 



Bramhope. Abbott, Emsley and Turner. 

 Sciadium arbuscula A. Br. 



Harrogate. Abbott, Emsley and Turner. 



Hydrocytium acuminatum A. Br. Baildon. W. West. 

 Glaeocystis vesiculosa iVa,?^. Rawcliffe. Nuttall and West. 



Desmidium Swartzii K. 



Bramhope. Abbott, Emsley and Turner. 



Hyalotheca dissiliens Breb. Brimham. J. S. Tute. 



Bramhope. Abbott, Emsley and Turner. 



Trans. Y.N.U., 1880 (pub. 1882). Series E 



