THE FLORA OF HALIFAX. 235 



ACHNANTHEiE. 



Achnanthidium flexellum, (Kiitz.) Breb. Og. CL, Heb. Bdge. 



Achnanthes microcephala, (Kiitz.) Grun. Ogden Clough. 



A. exilis, Kiitz. Coley. 



A. lanceolata, (Breb.) Grun. Cragg Vale. 



Cocconeis Pediculus, Ehrnb. High Greenwood ! 



C. Placentula, Ehrnb. Og. CI. Tag Lock, Norland Moor ! 



EPITHEMIE^. 



Epithemia turgida, (Ehrnb.) Kiitz. Bn. CL, High Green- 

 Var. Westermanni, Kiitz. Ogden Clough. [wood ! 



E. gibba, Kiitz. Og. CI., Cr. Dn. High Greenwood ! 

 E. Argus, (Ehrnb.) Kiitz. Among moss, Hebden Valley, 

 Norland Moor, High Greenwood ! 

 Var. alpestris, (W. Sm.) Rabh. Og. CL, Hebden Bdge. 

 E. gibberula, (Ehrnb.) Kiitz. Cragg Vale. 



Var. rupestris, (W. Sm.) Rabh. Crimsworth Dean. 



Eunotia Arcus, Ehrnb. Bn. CL, Erringden Moor ! Og. CL 



Var. minor, V. H. Among mosses on wet wall, Lee 



Bank ; on filamentous algae, Tag Lock ; well side, 



Grain, Crimsworth Dean ! [Well, etc. ! 



E. major, (W. Sm.) Rabh. 1888. Well, Wellhead, Catty 



E. gracilis, (Ehrnb.) Rabh. Greetland, Ogden Clough. 



Colden Clough. High Greenwood, Wellhead ! 

 E. exigua, (Breb,) Rabh. Ogden Clough. 



In thousands on Hypnuni fluitans, Elland Park Wood ! 

 Gibb Slack Moor ! 

 E. pectinalis, (Dillw.) Rabh. Catty Well ! Og. CL, Cr. Va. 

 Var. undulata, (W. Sm.) Rabh. {Himantidium undulatum, 

 (W. Sm.) Norland—/. Wms. S. 

 E. Faba, (Ehrnb.) Grun. {Himantidium Soleivolei, Kiitz.) 



Ogden Clough. In field well, Wellhead, Halifax ! 

 E. Veneris, Kiitz. Ogden Clough. 



E. lunaris, (Ehrnb.) Grun. Ogden Clough. W'ellside, Grain 

 farm, Crimsworth Dn. ! Erringden Moor — /. T. Aspin. 



SYNEDRE^l. 



Synedra Yaucherise, Kiitz. Halifax, Cragg Vale. 

 S. Olna, (Nitzsch) Ehrnb. Fixby, Ogden Clough. 



Var longissima, (W. Sm.) Grun. Gate Head Clough ! 

 S. Acus, (Kiitz.) Grun. Greetland, Fixby. 



Var. delicatissima, (W. Sm.) Grun. Fixby. 

 S. radians, (Kiitz.) Grun. Ogden Clough. 

 Asterionella formosa, Hass. Greetland. 



