Stigeoclonium nauum Dillw. Near Bradford (W.). 

 Sraparnaldia glomerata Ag. Bingley, Steeton, Eccleshill, York, 



Ilkley, Halifax, (fee. (W.) ; Roundhay (A., E., and T.). 

 Draparnaldia plumosa Vauch. Clayton (W.) ; Adel (A., E., 



and T.). 

 Chsetophora endivsefolia Ag. Bingley, Saltaire, Horton-in-Ribbles- 



dale (W.). 

 Chaetophora elegans Roth. Baildon, ikc. (W.); Roundhay, Adel 



(A., E., and T.). 

 Chsetophora tuherculosa Roth. Baildon, &c. (W.). 

 Coleochsete SCUtata Br^b. Bradford (W.) ; Adel (A., E., and T.). 



Class II.-PHYCOCHEOMOPHYCE.ffi. 



Order I.— CYSTIPHOR.^. 



Fam. I. —GHROOCOCGA CE^. 

 €hroococcus turgidus Nag. Cullingworth, Steeton, ike. (W.). 

 Gloeocapsa polydermatica Kiitz. Baildon, Bingley, Keighley (W.). 



Order II.— NEMATOGEN^. 



Fam. l.—NOSTOGEJE. 



Nostoc rupestre Kiitz. Ingleborough, Clapham, Malham (W.). 

 Nostoc sphsericum Vauch. Ingleton (A., E., T., and W.) ; near 



Bradford (W.). 

 Nostoc cceruleum Lyngb. Baildon, &e. (W.). 

 Nostoc commune. Knaresborough (A., E., and T.). 

 Gylindrospermum macrospermum Kiitz. Horton, near Bradford (W. ). 

 Cylindrospermum catenatum Ralfs. Goole. 



Fam. ll.—LYNGBYE^. 



Spirulina oscillarioides Turp. Bramhope (A., E., and T.). 

 Oscillaria tenerrima Kiitz. Bradford (W.). 

 Oscillaria Frolichii Kiitz. Bingley, Baildon, Frizinghall (W.). 

 Oscillaria muscorum Carm. Hebden Bridge, AUerton (W.). 

 Oscillaria irrigua Kiitz. Keighley, Addingham, (fee. (W.). 

 Oscillaria tenuis Ag. Baildon (W.) ; Potternewton (A., E., and T.). 



