188 ENGLISH BOTANY. 



similar to the bracts of the fertile whorls, more rarely unbranched. 

 Fertile whorls terminating ( the stems and primary and secondary 

 branches, forming large subglobose heads, consisting of very numerous 

 branchlets, and incurved bracts. Branchlets 3- to 5-celled, acute, 

 bearing at the first node 4 or 6 lateral bracts, each bract of 3 or 4 cells 

 attenuated and acute, similar to the terminal portion of the branches, 

 but shorter, and incurved over the nucules and globule. Nucules 2 to 8 

 together at the nodes of the fertile branchlets between the bracts, 

 [and at the base of the branchlets,] subglobose-ovoid, 8- or 9-striate, 

 with a minute deciduous crown. Globules solitary, lateral on the 

 inner side of the fertile branches, between the bracts, surrounded by 

 the nucules, [and lateral at the base of the branchlets.] 



Yar. a. genuina. 



Plate 1907. 



Braun, Babenh. & Stiz. Char. Europ. Exsicc. Nos. 18, 33, 108. 



Nordst. & Wahlst. Char. Scand. Exsicc. Nos. 46, 47, 48. 



Nitella intricata, Agardh, Syst. Alg. p. 125 (excluding synonym C. flexilis, var. stellata, 



Wallr. and the plant quoted from the Baltic Sea). Coss. & Germ. Fl. Envir. Par. 



ed. ii. p. 893 ; and Atlas pi. 47, f. i. Nordst. in Anderss. Bot. Notiser, 1863, p. 39. 



Braun, Consp. Char. Europ. p. 3. Crepin in Bull. Soc. Bot. Belg. Vol. II. p. 130. 



Fl. Danica, t. 2744. Mutter in Bull. Soc. Bot. Geneve. 1881, p. 56. Baling. 



Man. ed. 8, p. 470. 

 N. fasciculata, A. Braun, Schweiz. Char. p. 11. Kiitz. Sp. Alg. p. 517; and Tah. Phyc. 



Vol. VII. p. 14, t. 36. 

 N. polysperma, Kiitz. Phyc. Gener. p. 318 ; and Phyc. Germ. p. 255. Wallm. in Kongl. 



Vet. Akad. Handl. Stockh. 1854, p. 269. 

 N. glomerata, Coss. & Germ. Atlas Fl. Envir. Par. ed. i., as to description under 



explanation of plate 41, not as to figure. 

 Tolypella intricata, Leonhardi " in Lotos, 1863, p. 32 ; " and in Brunn, Verhandl. Vol. II. 



p. 175. Braun in Cohn, Krypt. Fl. Schles. Vol. I. p. 400 ; and Fragm. Monog. 



Char. p. 99. Walilst. Monog. Sver. Norg. Char. p. 22. H. & J. Groves in Journ. 



Bot. 1880, p. 163, t. 209, f. 13. Sydoiv, Europ. Char. p. 38. 

 Chara intricata, Both, Catalecta Bot. Fasc. II. p. 125. Baker in Beport of London 



Bot. Exchange Cluh for 1867, p. 15 ; and in Journ. Bot. 1868, p. 73. 

 C. fasciculata, Amid, Descriz. Char. p. 16, t. iv. f. iv. and t. v. f. iii. 

 C. polysperma, A. Braun in Ann. Sciences Nat. 2nd ser. Vol. I. p. 352 ; and in 



Flora, 1835, Vol. I. p. 56. Ganterer, Osterr. Char. p. 12, t. i. f. iii. Baling, in 



Ann. Nat. Hist. ser. ii. Vol. V. 1850, p. 88. 



Branchlets of the sterile whorls 6 to 14, once or twice branched 

 with the divisions simple or again branched. 



