84 Mr. C. C. Babington on the British species of Chara. 



b. Mucronatce. Branchlets usually repeatedly divided, terminal seg- 

 ments of two joints, last joint usually resembling a mucro. Branch- 

 lets 6-8 in a whorl, similar. 



3. C. translucens (Pers.) j monoecious, stem thick equal flexible 

 transparent, sterile branchlets simple not jointed, upper ones end- 

 ing in two or three short points, fertile whorls of small trifur- 

 cate branchlets very small and closely placed, nucules small 

 oblong usually in threes just below the three bracts surround- 

 ing the terminal globule. 



C. translucens, Pers. Syn. PI. ii. 531 ; Eng. Bot. t. 1855 ; A. Braun 



in Flora, xviii. 51 ; Ann. Sc. Nat. ser. 2. i. 352 ; Hook. Eng. Fl. 



v. pt. 1. 245 ; Mutel Fl. Franc, iv. 160. 

 Nitella translucens, Coss. et Germ. Fl. Par. 682 ; Ail. t. 40 B. 



A strong plant. Fertile whorls so disposed amongst the 

 branchlets as to appear to be capitate. Globules solitary. Nu- 

 cules with seven striae. The fruit appears to be wrongly drawn 

 in ' Eng. Bot/ 



Deep stagnant pools. " Near Shrewsbury, Rev. E. Williams ; 

 Browston and Belton, Suffolk, Sir W. J. Hooker ; Scotland f* 

 Sir J. E. Smith. Bagnley Moor, Cheshire, Mr. W. Wilson. Tot- 

 teredge, Middlesex, Mr. E. Forster. Loch Lubnaig, Perthshire ; 

 Lochnaw, Wigtonshire ; near Liverpool ; Prof. Balfour. Near the 

 Fairlop Oak in Hainault Forest, Essex. 



Annual. July. 



4. C. mucronata (A. Br.) ; monoecious, stem slender equal flex- 

 ible transparent, branchlets strongly mucronate nearly equally 

 forked or trifid, nucules and globules together at the forks of 

 the branchlets without bracts. 



C. mucronata, A. Braun in Flora, xviii. ; Ann. Sc. Nat. ser. 2. i. 351 ; 



Mutel Fl. Franc, iv. 161. 

 Nitella mucronata, Coss. et Germ. Fl. Par. 683 ; Atl. t. 40 D. 



Rather thick for its length. Secondary branchlets once or 

 twice forked or trifid, the terminal subdivisions rather shorter 

 than the others. " Nucules with four or five strise." 



Marsh ditch at East Grinstead, Sussex, Mr. Borrer. 



Annual. July. 



5. C. gracilis (Sm. !) ; monoecious, stem slender equal flexible 

 transparent, branchlets in lax whorls repeatedly divided into 

 three or four segments, terminal segments mucronate shorter 

 than the others, globules and nucules each solitary but to- 

 gether at the subdivisions of the branchlets without bracts. 



C. gracilis, Sm. ! Eng. Bot. t. 2140; Reich. I Iconog. t. 793; A. 

 Braun I in Flora, xviii. 53 ; Ann. Sc. Nat. ser. 2. i. 351 ; Mutel 

 Fl. Franc, iv. 160 ; Hook. Eng. Fl. v. pt. 1. 245 (in part). 



