THE FLORA OF HALIFAX. 23 I 



S. longata, (Vauch.) Kiitz. Popple-well, Warley — J.W.S. 

 S. porticalis, (Vauch.) Cleve. (S. quinina (Ag.) Kiitz.) 



1888. Well in Well-head Field ! 1889. Binnroyd Clough ! 

 S. condensata, (Vauch.) Kiitz. Popple-well, Warley — J.W.S. 



DESMIDIACEJE. 



Gonatozygon Ralfsii, De Bary. Hebden Bridge. 



G. Kinahani, (Arch.) Rabh. 1888. In well, Well-head Field ! 



Spirotaenia condensata, Breb. Ogden CI. ; Bn. CI. — T.C. 



Mesotamium mirificum, Arch. Ogden Clough. 



M. macrococcum, (Kiitz.) Hebden Bridge ; Bn. CI. ! 



M. Endlicherianum, Nag. Var. grande, Nordst. Cr. Va. 



Cylindrocystis Brebissonii, Menegh. (Penium, Ralfs.) Bn. CI. ! 



C. crassa, De Bary. Ogden Clough. [Og. CI. 



C. diplospora, Lund. 1892. Norland — J.W.S. 



Penium digitus, (Ehrnb.) Breb. Ogden Clough. 



P. oblongum, De Bary. Greetland ; Ogden Clough. 



P. truncatum, Breb. Forma punctata, West. Greetland. 



P. margaritaceum, (Ehrnb.) Breb. Pk. Gt. — T.C. 



P. polymorphum, Perty. Ogden Clough, Cr. Dn. 



P. cucurbitinum, Biss. Ogden Clough. 



P. cruciferum, (De Bary) Wittr. Ogden Clough. 



Roya obtusa, (Breb.) West and G. S. West. Greetland. 



Var. montana, West and G. S. West. Ogden Clough. . 

 Closterium paryulum, Nag. Ogden Clough. 

 C. Yenus, Kiitz. Park Gate — T.C. ! 

 C. Leibleinii, Kiitz. Fixby. 



C. moniliferum, (Bory) Ehrenb. 1892. Pk. Gt. ! Hebden Bdge. 

 C. Ehrenberghii, Menegh. Pk. Gt. ! Og. CI. 

 C. lunula, (Miiller) Nitzsch. Cr. Dn. 

 C. Cornu, Ehrnb. Greetland. 



C. striolaturn, Ehrnb. Greetland. 1891. Pk. Gt. ! 

 C. intermedium, Ralfs. 1892. Pk. Gt. — T.C. ! 

 C. lineatum, Ehrnb. 1892. Pk. Gt. — T.C. ! 

 C. Pritchardianum, Arch. Cr. Dn. 

 C. acutum, (Lyngb.) Ralfs. Pk. Gt. ! 

 C. Ralfsii, Breb. Pk. Gt. ! 



C. rostratum, Ehrnb. Greetland. 1892. Pk. Gt.— T.C. ! 

 Pleurotaenium Trabecula, (Ehrnb.) Nag. Fixby. Pk. Gt. ! 

 Tetmemorus Brebissonii, (Menegh.) Ralfs. Halifax. 

 T. granulatus, (Breb.) Ralfs. 1889. Mount Tabor— H. Water- 

 worth. 1891. Greetland! Ogden Clough ; Cragg Vale. 

 T. laevis, (Kiitz.) Ralfs. Ogden Clough. 

 Euastrum lobulatum, Breb. Cragg Vale. 



