CHAEA VULGARIS. 27 



been found in one locality in Italy. Regarded as a 

 subspecies of C. fcetida ( = C. vulgaris) by Braun & Nord- 

 stedt (' Fragmente,' p. 168).] 



4. Chara rudis Leonhardi. 

 (Plate XXX.) 



Chara hispida var. rudis Beatjn in Braun, Babenh. & Stiz. Oliarac. 

 Exsico. No. 4 (18.57). 

 Groves in Journ. Bot. XVIII, p. 1.32, t. 208, f. 7a (1880). 

 J. Mtjllek in Bull. Soc. Bot. Geneve, II, p. 86 (1881). 

 C spinosa* rudis Nobdstedt in Bot. Notiser, for 1863, p. 48. 

 C. rudis Leonhaedi in Verh. Naturf. ver. Brunn, TI, p. 185 (1864). 

 Beaitn Oonsp. Obarao. Europ. p. 6 (1867) ; in Oohn, Krypt. Fl. 



Schles. I, p. 408 (1876). 

 Wahlstedt Mon. Sver. and Norg. Charac. p. 29 (1875). 

 Stdo-w Europ. Oliarac. p. 83 (1882). 



MiGULA Die Characeen p. 619, f. 129 (1895) ; Ki-ypt.-PL Deutscb. II, 



ii; p. 331, t. 74, f . 2 (1907) ; Syn. Oharac. Europ. p. 133, f. 114 (1898). 



HOLTZ in Krypt. fl. Mark. Brandenb. IV, i, p. 107 and p. 104, f . 1 



(1903). 



C. hispida subsp. rudis Beatjn & Noedstedt, Fragm. Monog. Obarac. 



p. 173 (1882). 

 C. major subsp. rudis Ht in Bull. Soc. Bot. France, LX, mem. 26, p. 37 

 (1913). 



ExsiCCATA : — Arescboug 142 ; Braun Rabenh. & Stiz. 4, 86 ; Fl. 

 Exsicc. Austr. Hung. 791 ; Groves 13 ; Jack, Lein & Stiz. 217 ; Krypt. 

 Exsioc. 1214, 1215; Migulal30; Nielssen 32, 33 {fide Wahlstedt); 

 Nordstedt & Wahlst. 62, 63, 64a, 64b, 65, 66 ; Gr. & B.-W. 9. 



Monoecious. Stem of medium tliickness or rather 

 slender ; internodes about l^twice as long as the 

 branchlets. Cortex regularly diplostichous, the cells of 

 the secondarjr series very much the broader and more 

 prominent, often more than twice the diameter of the 

 primary series, not tapering at the extremities. Spine- 

 cells mostly geminate, some solitary, and a few three 

 together, usually appressed except in the younger 

 internodes, of medium length, cylindrical usually obtuse. 

 Stipulodes of both series well-developed, of nearly equal 

 length, sub-cylindrical, usually obtuse. Whorls of 6-8 

 branchlets. Branchlets usually rather long, slender, and 

 not much curved, of 7-8 segments, the 3 upper usually 

 ecorticate. Bract-cells normally 5, the posterior short, 



