N1TELLA CAPILLAR1S. 97 



C. gmoilis WAHLEXBERGF!. Suec. p. 69-4 (1826) fide Braun (non Smith). 

 Nitella capitata AGARDH Syst. Alg. p. 125 (1824). 



WALLIVIAN Forsok syst. Charac. p. 37 (1853) ; Trausl. p. 32 (1856). 

 WAHLSTEDT Bidrag Skand. Charac. p. 8 (1862) ; Mou. Sver. & Norg. 



Charac. p. 15 (1875) (misprinted capita). 

 NORDSTEDT in Bot. Notiser. 1863, p. 34. 

 CREPIN in Bull. Soc, Bot. Belg. II, p. 130 (1863). 

 RABENHORST Krypt. Fl. Sachs. I, p. 287 (1863). 

 LEONHARDI in Yerh. Nat. ver. Briinn, II, p. 166 (1864). 

 BRAUX in Monatsb. Akad. Berl. for 1867, p. 873 (1868) ; in Colin, 



Krypt. Flor. Schles. I, p. 396 (1876). 

 MiJLLER in Bull. Soc. Bot. Geneve. II, p. 49 (1881). 

 BRAUN & NORDSTEDT Fragm. Mon. Charac. p. 31 (1882). 

 SYDOW Europ. Charac. p. 12 (1882). 

 GROVES in Journ. Bot. XXI Y, p. 3, t. 264 (1886). 

 MIGULA Die Characeeii, p. Ill, f. 31-34 (1890) ; Syn. Charac. Europ. 



p. 29, f. 19-22 (1898). 



FILARSKY-NAXDOR Charac. Ungarn. p. 120, f. 17 (1893). 

 HOLTZ Characeeii in Krypt. Mark-Brandenb. p. 70 (1903). 

 PROSPER Carofit. Espan. p. 64, t, lUA (1910). 

 HY in Bull. Soc. Bot, France. LX. Mem. 26, p. 7 (1913). 



N. syncarpa vars. capitata & yloeocepliala KUTZING Phyc. Germ. p. 256 



(1845). 



N. syncarpa vars. capitata & oxygyra RABEXHORST Deutsch. Krypt. Fl. 



'II, p. 195 (1847). 



BRAUX in N. Denks. Schweiz. Ges. Naturw. X, p. 7 (1849) (misprinted 

 oxygyna}. 



N. syncarpa var. capitata BOSWELL Engl. Bot. ed. 3, XII, p. 177 (1884). 



EXSICCATA : Areschoug 300 ; Billot 1986-7 ; Braun, Rabenh. & 

 Stiz. 26-28. 104 : Desmazieres II, 319 ; Groves 30 ; Xielsen 2. 3, 48 

 (fide Wahlst.) ; Nordstedt & Wahlstedt, 3, 4. 



Dioecious. Stem rather slender, the internodes some- 

 times, though not usually, twice as long as the branch- 

 lets. IWiorls of 6-9 branchlets. Branclilets once 

 forked, the primary and secondary rays usually of 

 nearly equal length ; secondary rays 2-4, one-celled, 

 apex extremely Yariable, sometimes quite blunt, but 

 usually abruptly or gradually narrowed into an acumi- 

 nate (sharp) point. Fertile v'lurrls mostly with very 

 short branchlets forming dense heads. Oogonia and 

 anther idia surrounded by an amorphous gelatinous 

 envelopment. Oogonia 2 or 3 together or solitary, 

 c. 550-575 p. long, c. 425-450 //, broad; spiral cells 

 showing usually 7 convolutions, becoming swollen at 

 the apex ; coronula c. 2535 yu, high, deciduous. Oospore 

 c. 375-400 ^ long, 325-375 ^ broad, 300 /* thick, 



VOL. I. 



