W. WEST AND G. S. WEST: AI.GA-FLORA OF YORKSHIR^. 229 



elegantissimuin, Cosmatium ... 

 elliptica, Cymatopleura 



Navicula ... 



Oocystis ... 



ellipticum, Cosmarium 

 elobatum, Euastrum 

 elongata, Anabsena ... 

 elongatum, Diatoma 

 Encyonema, Genus ... 

 endivsefolia, Chuetophoia 

 Endlicherianum, M esoLiienium 

 Endosphajrefe, Sub-Family ... 

 enornie, Tetraedron... 

 ensiforme, Characium 

 Enteiomorpha, Genu.s 

 Epitheniia, Genus ... 

 Epitliemiefe, Family 

 Eremosphfera, Genus 

 ericetorum, Zygnema 

 erosum, Cosmarium... 



Euastrum ... 



Etchachanense, Cosmarium ... 



Euastrum, Genus ... 



EucbroococcaccEe, Sub-Family 



Eudorina, Genus 



Eunotia, Genus 



excavatum, Cosmarium 

 Sphserozosma 



exigua, Eimotia 



exiguum, Penium ... 



exilis, Achnanthes ... 



Dactylococcus 



Navicula 



Faba, Eunotia 

 falcatum, Rhaphidum 

 famelica, Synedra ... 

 fasciculata, Nitzscbia 



Synedra... 



fasciculatum, Xantbidium 67 

 fastigiatum , Stigeoclonium 

 fenestrata, Tabellaria 

 figuratum, Scytonema 

 filiforme, Onycboneraa 

 fimbriata, Micrasterias 

 firma, Navicula 

 flaccida, Tolypotbrix 

 flaccidus, Stichococcus 

 flavescens, Cladopbora 



CEdogonium 



Spirogyra 



flavicans, Rbizocloniuni 

 ilexellum, Achnanthidium 

 flexuosa, Eunotia 

 floccosa, Microspora 

 flocculosa, Tabellaria 

 Florideae, Class 



Bot. 5—0 



