NITELLA TEANSLUCBNS. 133 



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.) 



Chamfurcata Amici in Mem. Accad. Modena, I, p. 210, t. 5, f. 2 (1827) 



non Brnzelius. 

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



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

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

 XVIII, i, p. 52 (1835). 

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



Babington in Ann. & Mag. Nat. Hist. ser. 2, T, p. 84 (1850). 

 C. Barhieri Balsamo-Ceitblli inBibl. Ital. XOVII, p. 190 (1840). 

 C. hrevicaulis Bbetoloni F1. Ital. X, p. 19 (1854). 



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

 KiJTZiNG Phyo. Germ. p. 256 (1845) ; Sp. Alg. p. 514 (1849) ; Tab. 



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

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



f.E (1882). 

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

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

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

 Rabenhoest Deutscb. Krypt. Fl. II, p. 195 (1847). 

 Wallman Forsok syst. Oharac. p. 25 (1853) ; Transl. p. 22 (1856). 

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

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

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

 "Wahlstedt Mon. Sver. & Norg. Oharac. p. 17 (1875). 

 Groves in Journ. Bot. XVIII, p. 165, t. 210, f. 16 (1880). 

 MiJLiER in Bull. Soo. Bot. Geneve, II, p. 52 (1881). 

 Beatjn & NoRDSTEDT Fragm. iSonogr. Oharac. p. 50, t. 1, f. 39-42 



(1882). 

 Sydow Europ. Oharac. p. 22 (1882). 

 BoswBLL Engl. Bot. ed. 3, XII, p. 180, t. 1902 (1884). 

 MiGTJLA Die Obaraceen, p. 149, f. 42-44 (1890) ; Syn. Oharac. Europ. 



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

 HoLTZ Oharaceeu in Krypt. Mark-Brandenb. p. 74 (1903). 

 Peospee Oarofit. Espaii. p. 71, f . 11b (1910) ; 

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

 N. flahdlata KiJTzmG Phyc. Gen. p. 318 (1843); Phyc. Germ. p. 256 



(1845) (= var. tenuior). 

 N. exilis Beaujst in N. Denks. Schweiz. Ges. Naturw. X, p. 9 (1849) 

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

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

 N. norvegica Wallman Forsok syst. Oharac. p. 24 (1853) ; Transl. p. 21 

 (1856). 

 VOL. I. 8 



