228 



YORKSHIRE NATURALISTS' UNION. 



cyathigerum, CEdogonium 

 cyclicum, Cosmarium 

 Cyclotella, Genus ... 

 cylindricum, Desmidium 

 Cylindrocapsa, Geniis 

 Cylindrocapsaceoe, Family 

 Cylindrocystis, Genus 

 Cylindrospermum, Genus 

 Cylindrotheca, Genus 

 cylindrus, Penium ... 

 Cymatopleura, Genus 

 cymatopleurum, Cosmarium 

 Cymbella, Genus ... 

 C)Tnbelle8B, Family... 

 cymbiformis, Cymbella 

 Cynthia. Closterium... 

 Cyprinus, Navicula ... 

 cyrtocerum. Staurastrum 

 cystifera, Gloeothece 

 Dactylococcopsis, Genus 

 Dactylococcus, Genus 

 Daetylothece, Genus 

 Dactylus, Navicula ... 

 Dansei, Mastogloia .. 

 Davidsonii, Cosmarium 

 Debarya, Genus 

 DeBaryi, Cosmarium 

 debilis, Nitzschia 

 decedens, Cosmarium 

 decorum, Closterium 

 DeGreyii, Mesottenium 

 dejectum, Staurastuni 

 delicatis.sima, Synedra 

 delicatula, Cymbella 



Schizochlamys 



delicatulum, GEdogoniuin 



Staurastrum 



Denticula, Genus ... 



Nitzschia... 



denticulaia, Micrasterias 

 denticulatum, Euastnim 



Staurastrum 



denticulatus, Scenedesmus 

 depressa, Mougeotia 

 depressum, Spondylosium 

 Desmidiaceae, Family 

 Desmidium, Genus ... 

 DeTonii, Staurastrum 

 devia, GlcEOthece ... 

 diagonum, Aptogonum 

 Dianse, Closterium ... 

 Diatoma, Genus 

 Diatomese, Family ... 

 dicephala, Navicula... 

 dichotoma, Vaucheria 

 dichotomum, Gomphonema 



Tran?, V.X.U., 1901 (pub, Jqlj- 1901). Bot. Series, Vol. 5. 



