NITELLA TRANSLUCENS. 113 



fertile branchlets are less abbreviated and in consequence 

 form lax heads. This variety has not so far been observed 

 in this country. 



6. Nitella mucronata Miquel. 

 (PLATE XII.) 



Cliara furcata AMICI in Mem. Accad. Modena, I, p. 210, t. 5, f. 2 (1827) 

 non Bruzelius. 



C.flexilis BISCHOFF Krypt. Gew. t. 1, f. 1-4 (1828) non Linn. 

 REICHENBACH Iconogr. f. 1071-1072 (1830). 



C. mucronata BRAUN in Ann. Sc. Nat. ser. 2, 1, p. 351 (1834) ; in Flora, 



XVIII, i, p. 52 (1835). 

 GANTERER Osterr. Char. p. 9 (1847). 

 BABINGTON in Ann. & Mag. Nat. Hist. ser. 2, V, p. 84 (1850). 



C. Barbieri BALSAMO-CRIVELLI in Bibl. Ital. XCVII, p. 190 (1840). 

 C. brevicaulis BERTOLONI Fl. Ital. X, p. 19 (1854). 



Nitella mucronata MIQUEL in van Hall, Fl. Belg. sept. II, p. 428 (1840). 

 KUTZING Phyc. Germ. p. 256 (1845) ; Sp. Alg. p. 514 (1849) ; Tab. 



Phyc. VII, t. 33, f. 1 (1857). 

 COSSON & GERMAIN Atl. Flor. Par. t. 40, f.D (1845) ; ed. 2, t. 46, 



f.E (1882). 

 BRAUN in N. Denks. Schweiz. Ges. Naturw. X, p. 9 (1847) ; in 



Monatsb. Akad. Berl. for 1867, p. 882 (1868) ; in Cohn, Krypt, FL 



Schles., I, p. 398 (1876). 



RABENHORST Deutsch. Krypt. Fl. II, p. 195 (1847). 

 WALLMAN Forsok syst. Cbarac. p. 25 (1853) ; Transl. p. 22 (1856). 

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

 CREPIN in Bull. Soc. Bot. Belg. II, p. 128 (1863). 

 LEONHARDI in Verb. Naturf. ver Briinn, II, p. 172 (1864). 

 WAHLSTEDT Mon. Sver. & Norg. Charac. p. 17 (1875). 

 GROVES in Joura. Bot, XVIII, p. 165, t. 210, f. 16 (1880). 

 MULLER in Bull. Soc, Bot, Geneve, II, p. 52 (1881). 

 BRAUN & NORDSTEDT Fragrn. Monogr. Charac. p. 50, t. 1, f. 39-42 



(1882). 



SYDOW Em-op. Cbarac. p. 22 (1882). 

 BOSWELL End. Bot. ed. 3, XII, p. 180, t, 1902 (1884). 

 MIGULA Die Characeen, p. 149, f . 42-44 (1890) ; Syn. Cbarac. Europ. 



p. 38, f. 30-32 (1898). 



HOLTZ Characeen in Krypt. Mark-Brandenb. p. 74 (1903). 

 PROSPER Carofit. Espafi. p. 71, f. HB (1910) ; 

 HY in Bull. Soc. Bot. France, LX, Mem. 26, p. 13 (1913). 



N.flabellaia KUTZING Phyc. Gen. p. 318 (1843); Phyc. Germ. p. 256 



(1845) (= var. tenuior). 

 N. exilis BRAUN in N. Denks. Scbweiz. Ges. Naturw. X, p. 9 (1849) 



( var. tenuior, not C. exilis, Barb.). 

 KUTZING Tab. Phyc. VII, t. 33, f. 2 (1857). 



N. norvegica WALLMAN Forsok syst. Charac. p. 24 (1853) ; Transl. p. 21 



(1856). 



VOL. I. 8 



