TOLTPELLA INTRIOATA. 



131 



C. polysperma Beaun in Ann. Sc. Nat. ser. 2, 1, p. 352 (1834) ; in Flora, 

 XVIII, i, p. 56 (1835). 



Ganteree Osterr. Char. p. 12, t. 1, f. 3 (1847). 



BABtNGTON in Ann. and Mag. Nat. Hist. ser. 2, V, p. 88 (1850). 

 N. polysperma Ktjtzing Phyc. Gen. p. 318 (1843) ; Phyc. Germ. p. 255 



Wallman Forsok syst. Charac. p. 41 (1853) ; Transl. p. 34 (1856). 

 N. nidifica var. polysperma Rabbnhoest Deutsch. Krvpt. PI. II, p. 196 



(1847). 

 N. fasciculata Beaun in N. Denks. Sohweiz. Ges. Naturw. X, p. 11 



(1849). 

 KiJTZiNG Sp. Alg. p. 517 (1849) ; Tab. Phyc. VII, t. 36 (1857). 

 Tolypella intricata Leonhaedi in Lotos, XlII, p. 57 (1863) ; in Verb. 



Naturf. ver. Briinn, II, p. 175 (1864). 

 Wahlstbdt Sver. & Norg. Charac. p. 22 (1875). 

 Beatjn in Oohn, Krypt. Fl. Schles. I, p. 400 (1876). 

 Geoves in Joum. Bot. XVIII, p. 163, t. 209, f. 13 (1880). 

 Beatjn & Noedstedt Pragm. Mon. Oharac. p. 99 (1882). 

 Stdow Enrop. Charac. p. 38 (1882). 

 MiGULA Die Characeen, p. 214, f. 61-63 (1890) ; Syn. Oiarac. Europ. 



p. 56, f. 49-61 (1898). 

 HoLTZ Charac. in Krypt. Mark-Brandenb. IV, i, p. 80 & fig. (1903). 

 Ht in Bull. Soc. bot. Prance, LX, Mem. 26, p. 21 (1913). 



ExsiccATA :— Areschoug 248, 249; Billot 1393; Braun, Rabenh. & 

 Stiz. 18, 33, 108 ; Desmazieres II, 325 ; Pries XVI, " 98 " ; Groves 22, 52 ; 

 Migula, Syd. & Wahlst. 7, 35, 77, 78; Nielsen 14 {fide Wahlst.) ; Nord- 

 stedt & Wahlstedt 46-48. 



Monoecious. Stem moderately stout, often much 

 branched. Whorls of two kinds ; the sterile and lower 

 fertile ones distant, large and lax, with usually 6 long 

 primary branchlets, the sterile usually once, the fertile 

 once or twice, divided with a variable, often consider- 

 able, number of shorter, more slender, usually simple, 

 accessory branchlets ; the upper fertile whorls forming 

 very large, rather dense heads, with shorter, usually 

 twice-divided, branchlets. Branchlets ]3roducing at the 

 first node 3-4 lateral, widely divergent simple rays, 

 and one central ray, which is either considerably longer 

 and simple, or is again divided ; at the second node 

 when present usually 3-4 lateral rays, and a central 

 elongated ray. Ultimate rays 5-6-, rarely 7-, celled, the 

 cells successively diminishing in length and thickness, 

 so that the ray tapers to the apex ; ultimate cell bluntly 

 conical. Oogonia stalked or sessile, produced 2-4 

 together at each node, and frequently also at the base 



