TOLYPELLA INTKICATA. 13S 



and graceful plant, the lower wliorls separated by long inter- 

 nodes and composed of long slender conspicuously divided 

 branchlets. It is however often densely incrusted when in 

 its later stages it presents a particularly dilapidated appear- 

 ance. The large dense fruiting heads are perhaps more 

 conspicuously nest-like than in any other species, but the 

 "nests" are distinctly of tlie untidy order. The spiral-cells 

 secrete a lime-shell. The divided sterile branchlets readily 

 distinguish it from the other British species. 



It varies considerably in the extent of its branching, some- 

 times producing but one branch at a node at others a cluster 

 of branches. The number of adventitious branchlets is also 

 subject to great variation. 



2. Tolypella prolifera Leonhardi. 

 (Plate XVIII.) 



Chara translucens var. prolifera Wallboth F1. Crypt. Germ. II, p. 



106 (1833), /de Braun & Nordstedt. 

 C. prolifera Bbattn in Ann. Sc. Nat. ser. 2, I, p. 352 (1834) ; in Flora, 



XVIII, i, p. 56 (1835). 

 C. nidifiea Boeeer in note to Engl. Bot. Suppl. t. 2762 (1834), nan 



Smith. 

 Nitella prolifera KiJTZiNG Phyo. G-erm. p. 255 (1845). 



Rabbnhoest Deutsch. Krypt. PI. II, p. 196 (1847). 



Wallman Porsok syst. Oharac. p. 41 (1853) ; Transl. p. 35 (1856). 



Oeepin in Bull. Soo. Bot. Belg. II, p. 130 (1863). 



Bbaun Oonsp. Oharac. enrop. p. 3 (1867). 



MiJLLBB in Bull. Soc. Bot. Genev. II, p. 55 (1881). 

 JV. fasciculata var. robustioi- (printed robuster) Beaun in N. Denks. 

 Schweiz. Ges. Naturw. X, p. 12 (1849). 



KuTziNG Sp. Alg. p. 517 (1849). 

 C. Barren Babington in Ann. and Mag. Nat. Hist. ser. 2, V, p. 87 



(1850). 

 N. Borreri Wallman Porsok syst. Charac. p. 43 (1853) ; Transl. p. 36 



(1856). 

 N. intricata var. prolifera Beebisson PI. Normand, ed. 3, p. 384 (1859) 



BoswELL Engl. Bot. ed. 3, XII, p. 189, t. 1908 (1884). 

 Tolypella prolifera Leonhaedi in Lotos, XIII, p. 57 (1863) ; in Verb 

 Naturf. ver. Briinn, II, pp. 168, 176 (1864). 



Beaun in Oohn, Krypt. PL Schles. I, p. 401 (1876). 



Gboves in Jouvn. Bot. XVIII, p. 162, t. 209, f. 12 (1880). 



Bbaust & NoEDSTBDT Pragm. Mon. Charac. p. 97 (1882). 



Sydow Europ. Cbarac. p. 37 (1882). 



MiGULA Die Characeen, p. 203, f. 59, 60 (1890) ; Syn. Charac. Europ 

 p. 53, f. 47-4S (1898). 



HoLTZ Charac. in Krypt. Mark-Brandenb. IV, i. p. 79 (1903) 



Hy in Bull. Soc. bot. Prance, LX, Mem. 26, p. 22 (1913). - 



ExsicCATA : — Rabenhoi-st, 68 ; Groves, 49-51. 



