124 BRITISH CHAROPHYTA. 



9. Nitella batrachosperma Braun. 

 (PLATE XV.) 



Chara batrachosperma BEICHENBACH, Iconogr. Bot. t. 794 (1830) ; 

 Flor. Germ. Exc. p. 148 (1830), neque Weiss, nee Thuillier. 



C. glomerata REICHENBACH in Mossl. Handb. p. 1663 (1834) (non 

 Desv.). 



C. tenuissima var. batrachosperma RABENHORST Fl. Lusat. II, p. 166 



(1840). 



C. tenuissima vars. batrachosperma & ramulosa GANTERER Oesterr. 

 Char. p. 10 (1847). 



Nitella tenuissima var. batrachosperma KUTZING Phyc. Germ. p. 256 



(1845). 

 RABENHORST Deutsch. Krypt. Fl. II, p. 196 (1847). 



N. batrachosperma BRAUN in N. Deiiks. Schweiz. Ges. Naturw. X, p. 10 

 (1847) ; in Cohn's Krypt. Fl. Schles. p. 400 (1876) non Agardh. 



KtJTZiNG Sp. Alg. p. 515 (1849) ; Tab. Phyc. VII, t. 35, f. 1 (1857). 



WALLMAN Forsok syst. Charac. p. 28 (1853) ; Transl. p. 24 (1856). 



NORDSTEDT in Bot. Notiser, 1863, p. 36. 



WAHLSTEDT Mon. Sver. & Norg. Charac. p. 20 (1875). 



MULLER in Bull. Soc. Bot. Geneve II, p. 54 (1881). 



BRATJN & NORDSTEDT Fragm. Mon. Charac. p. 66, t. 5, f. 131-132 

 (1882). 



STDOW Em-op. Charac. p. 30 (1882). 



MIGULA Die Characeen, p. 184, f . 52-54, 1890 ; Syn. Charac. Europ. 

 p. 48, f. 40-42 (1898). 



HOLTZ Characeen in Krypt. Mark-Brandenb. p. 78 (1903). 



PROSPER Carofit Espan. p. 75, f. 12, DE (1910). 



N. gracilis var. confervacea BREBISSON Fl. Normand. ed. 2 (1849). 



N. tenuissima var. Brebissonii BRAUN in Brebisson, FL Normand. ed. 3, 

 p. 383 (1859). 



N. confervacea BRAUN Consp. Charac. Europe p. 2 (1867). 

 BRAUN & NORDSTEDT Fragm. Mon. Charac. p. 64 (1882). 

 MIGULA Die Characeen, p. 182, f . 50, 51 (1890) ; Syn. Charac. Europ. 



p. 47, f. 38, 39 (1898). 

 HY in Bull. Soc. Bot, France, L. II, p. 94 (1905) ; IX, Mem. 26, p. 18 



(1913). 



N. Nordstedtiana GROVES in Journ. Bot. XXVIII, p. 66, t. 296 a-i 



(1890). 



EXSICCATA : Areschoug, 150 ; Braun, Rabenh. & Stiz., 78 ; Groves, 

 54; Lloyd, 402; Migula, Syd. & Wahlst., 5, 6; Nielsen, 10 (fide 

 Wahlst.) ; Nordstedt & Wahlst., 42 ; Reichenbach, 100 (in some sets). 



Monoecious. Stem extremely slender; internodes 

 from once to four times the length of the branchlets. 

 Whorls usually of 8 short somewhat spreading 

 branchlets. Branchlets of the fertile whorls twice, 

 occasionally three times, furcate ; primary rays about 

 ^-\ the entire length ; secondary rays 4-6, of which 



