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TRANSACTIONS OF THE YORKSHIRE NATURALISTS' UNION. 



PART 22, 

 ISSUED TO MEMBERS FOR THE YEAR 1 896. 



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.."^ of COiT,^, 



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Zooioo 



OCT n IJ^4a 



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IHE 



ALGA-FLORA OF YORKSHIRE: 



A COMPLETE ACCOUNT OF THE KNOWN 



■t 



FRESHWATER ALG/E OF THE COUNTY. 



BY 



W. WEST, E.L.S., 



Pi'ChRlciiL of the Yorkshire Naturalists' Union ; 



AND 



G. S. WEST, B.A., A.R.C.S., 



Hutchinson Research Student, and formerly Scholar ol" St. John's College, 



Cambridge ; Professor of Natural Plistory at the Royal 



Agricultural College, Cirencester. 



CONTENTS 



OF EXKiiT IXSTALMKXT (TliRKE SHKKTS). 



V 4 * 



# i 



« t • 



4 * « 



k 1 



t 4 A 



Introduction 

 Class Fi.ORiDE^ 



Class FuCOiDK.E 



Class Chuoroim i vckm — 



Order Confervoide/e Hetkrogam.k 

 Order Confkrvoide^ Isooam/E 



tat 



• 1 * 



* * V 



pages. 



5—1 1- 

 12—13. 



13- 



Order Conjugate 



* « 



Pariiily Desmidiace^ 



4 4 



* V f 



« 4 t 



t « f 



* t A 



T4— 17. 



17— 31- 



8. 



31 





39—52. 



LEEDS : 



-.-^-' 



PRINTED FOR THE YORKSHIRE NATURALISTS UNION 



BY TAYLOR BROTHERS. 



SEl'T., 1900, 



i. 



