CHARA BALTIC A. 47 



Var. c. rigida. 



Geoves & Bullock-Webstbe, Joui-n. Bot. LXII, p. 34 (1924.) 

 Exsico. Nos. 16 & 35. 



(Plate XXXVII, figs. 6-10.) 



Stem rigid, brittle, internodes 2-3 times tlie length of 

 the branchlets ; bulbils numerous. Cortex regular, the 

 primary and secondary series often nearly equal ; spine- 

 cells solitary, conspicuously patent. Branchlets rigid, 

 nearly straight. 



Norfolk, E., Sickling Broad {G. R. B.-W., 1898). 



The remarkably firm, rigid habit, comparatively long 

 internodes and patent spine-cells give a very distinctive 

 appearance to this variety. The mature fruit is ex- 

 tremely rare. The multicellular bulbils resemble those 

 of the type. It occurred in considerable abundance in 

 the northern area of the Broad for a number of years, 

 but was not observed when we last visited the locality. 



10. Chara aculeolata Kiitzing. 

 (Plate XXXVIII.) 



Hippuris inuscosis sub aqua repens in Hibernia Pltjkenet, Phyto- 



graphia, III, t. 193, f. 6 (1692). 

 Chara aculeolata Ktjtzing in Eeichenbach, PI. Gei-m. Exours. p. 843 



(1832) ; Phyc. Gen. p. 320 (1843) ; Pliyc. Germ. p. 258 (1845) ; Sp. 



Alg. p. 524 (1849) ; Tab. Phyc. VII, t. 67, f. 2 (1857). 

 C.pedunculata KtJTZiNG in Flora XVII, i, p. 706 (1834). 

 C. hispida var. pseudo-crinita Beaun, Ann. sc. Nat. ser. 2, I, p. 355 



(1834) ; in Flora, XYIII, i, p. 67 (1835). 

 CossoN & Germain, Atl. PL par. t. 38, f. B3 (1845) ; ed. 2, t. 42, 



1 B3 (1882). 

 Wallman Porsok syst. Oharac. p. 83 (1853) ; Transl. p. 69 (1856). 

 BoswELL, Engl. Bot. ed. 3, XII, p. 208, t. 1918 (1885). 

 G. spondylophylla Kutzing Phyc. Gen. p. 320 (1843) ; Phyc. Germ. p. 



269 (1845) ; Sp. Alg. p. 525 (1849) ; Tab. Phyc. VII, t. 68, f . 2. 



misprinted spondyluphora on plate (1857). 

 C. hispida var. aculeolata, Eabenhoest, Deutsch. Kiypt. PI. p. 198 



(1847). 

 C. hispida var. dasyacantha Beatjn in N. Denks. Schweiz. Ges. Natiu-w. 



X, p. 18 (1849). 

 C. polyacantha Beatjn in Braun, Rab. & Stiz. Charac. Exsicc. No. 48 



(1859). 



