JOURNAL 



OF THE 



ROYAL MICROSCOPICAL SOCIETY. 



FEBRUARY 1888. 



TRANSACTIONS OF THE SOCIETY. 



I. — Fresh-water Algm (including Chloroplujllous Protophyta) of the 

 English Lake District. II. With descriptions of a new genus 

 and five new species. 



By Alfred W. Bennett, F.R.M.S., F.L.S., Lecturer on Botany 

 ' at St. Thomas's Hospital. 



(Read 11th January, 1888.) 

 Plate I. 



The following is a list of species gathered in the English Lake Dis- 

 trict in August and the early part of September 1887, not included in 

 my previous list from the same district.* A few species only are 

 noted which are recorded in that list, where it seemed desirable for 

 some special reason, and these are placed between brackets. The 

 gatherings were all within the county of Cumberland, in the lower 

 part of Borrowdale, and near the southern end of Denventwater, mostly 



EXPLANATION OF PLATE I. 



Fig9. 1-3. — Horinospora mutabilia Bre'b. x 200. 

 „ 4. — Acanthococcus anglicus Benn. x 200. 

 „ 5. — Urococcus insignis Hass. (?) x 400. 



„ G. — Capsulococcus craterifornris Benn. Tegument with single pseudo- 

 cyst, front view x 200. 

 „ 7. „ „ „ Tegument with nest of eight 



pseudocysts, front view x 200. 

 „ S. „ „ „ Empty tegument, side view 



X 200. 

 „ 9. — Chrooeoccus pyriforniis Benn. x 200. 

 „ 10.— Gomphosphseria (?) anomala Benn. x 200. 

 „ 11.— Calothrix minuta Benn. x 200. 



12.— Gonatozygon Brebissonii dBy (?) x 200. 

 „ 13. — Euastrum rostratum Kalfs, var. cumbricum Benn. x 400. 

 „ 14. — Cosmarium globosum Buln. x 400. 

 „ 15. — Staurastrum spongiosum Bre'b., var. cumbricum Benn., side view 



x 400. 

 „ 16. „ „ „ „ „ front view 



x 400. 



* This Journal, 1880, pp. 1-15. 

 1888. 



