236 THE FLORA OF HALIFAX. 



FRAGILARIE^. 



Fragilaria capucina, Desmaz. Tag Lock, Barkisland, Colden 

 F. mutabilis, (W. Sm.) Grun. Fixby. [CI. ! 



MERIDIONIDJE. 



Meridion circulare, (Grev.) Ag. Coley. Salterhebble ! 



DIATOME.&J. 



Diatoma vulgare, Bory. In swamp, Norland ! 

 D. elongatum, Ag. Fixby. 



D. hiemale, (Lyngb.) Heib. (Odohtidium hiciuale, Klitz). 

 Greetland, Crimsworth Dn., Colden CI., Catty Well ! 

 Var. mesodon, (Kiitz) V. H. 



Og. CI., Cr. Dn., Heb. Edge. On moss, Well Head, 

 Catty Well, Erringden Moor, Lud. Dn., Tag Lock ! 

 Denticula tenuis, Kutz. Crimsworth Dean. 

 D. elegans, Kutz. Ogden Clough. 



TABELLARIEJE. 



Tabellaria fenestrata, (Lyngb.) Kutz. Greetland. 



T. flocculosa, (Roth.) Kiitz. Cr. Va. Well Head,Hx.;Og. CI. ! 



SXJBIREIiLEiE. 

 Cymatopleura elliptiea, (Breb.) W. Sm. Fixby. 

 Surirella biseriata, Breb. In well, Shay Lane, Ovenden ; on 



moss, Barkisland ! Binn Royd Clough — T.C. 

 S. linearis, W. Sm. Greetland, Ogden Clough, Cragg Vale. 

 S. robusta, Ehrub. Var. splendida (Ehrnb.) V. H. 



In well, Shay Lane ; among moss, Binn Royd Clough ! 

 S. OYalis, Breb. 1891. Kirk's Dam, Old Lane, Hx. ! 

 Var. minuta, Breb. V. H. Fixby ; Coley. 

 Var. pinnata, (W. Sm.) V. H. Ogden Clough. 

 S. spiralis, Kiitz. Hebden Bridge. 



nitzschie.se. 

 Hantzschia amphioxys, (Ehrb.) Grun. 1891. Ogden CI. ! 

 Nitzschia parvula, W. Sm. Ogden Clough. 

 N. sinuata, (W. Sm.) Grun. Ogden Clough. 

 N. Sigmoidea, (Ehrnb.) W. Sm. Halifax. Canal, Salter- 

 hebble ! 

 N. linearis, (Ag.) Var. tenuis, (W. Sm.) Grun. Cragg Vale. 

 N. Palea, (Kiitz.) W. Sm. Crimsworth Dean ; Cragg Vale. 



MELOSIREiE, 



Melosira varians, Ag. Fixby. 



