Algse of the English Lake District. By Wm. West. 733 
S. Pseudosebaldi Wille var. simplicius var. n. Fig. 37. 
Yar. minor, spinis acnleatis — nec bifurcatis — dorso, apicibns 
processnnm breviornm longius tricuspidatis. 
Long. c. spin. 32 fx ; lat. 46 /x . ; lat. istbm. 9 yn. 
Brandreth. 
S. eustephanum (Ehrnb.) Balfs. Bn., L. 
S. furcigerum Breb. B., L. 
S. sexcostatum Breb. B. 
snbsp. productum snbsp. n. Fig. 34. 
S. circiter tam longnm quam latum (cum processibus) ; 
semicellulae processibus brevibus sex {non lobis), 
cum apicibus processuum truncatis et sexdentatis, 
cum annulo granulorum aculeatorum ad basem semi- 
cellularum ; apices verrucis emarginatis irregulariter 
dispersis ornati; a vertice sexradiatis, radiis semi- 
cellulae utriusque alternantibus. 
Long. 40-43 y, ; lat. 43 y ; lat. istbm. 16-17 /x. Bn., 
B., H. (at 2400 ft.). 
8. margaritaceum (Ebrnb.) Menegb. Very frequent. 
Forma cum annulo punctorum (circiter 14) ad basem 
semicellularum. 
Long. 32 fa ; lat. 30 fx; lat. istbm. 10*5 fx. Hp., Grey 
Knotts. 
8. tetracerum (Kutz.) Balfs. W., B., B. 
Class Multinucleat^:. 
Order Siphoned. 
Genus Vaucheria D. C. 
V. sessilis (Yaucb.) D. C. Bn. 
Class CcenobiEjE. 
Order Yolyocine^. 
Genus Eudorina Ebrnb. 
E. elegans Ebrnb. Bn., L. 
Order Pandorine#:. 
Genus Pandorina (Bory) Prings. 
P. morum Mull. H., Bn., K., Crummock Water. 
Genus Gonium (Mull.) Ebrnb. 
G. pectorale Mull. B. 
Genus Chlamydococcus A. Br. 
C. pluvialis A. Br. Deepdale. 
