Mr. C. C. Babington on the British species of Chara. 83 
Nat. Order. CHARACEM, Rich. 
Genus Cuara, Linn. 
Section I, Nitella. Crown of the nucule of “ten cells, form- 
ing two circles one lying upon the other, never spreading, gene- 
rally falling off before the maturation of the seeds ” (A. Braun). 
Stems more or less pellucid, composed of a single tube. 
A. Nitelle vere. Gilobules terminal at the furcation of the 
branchlets. 
a. Fureate. Branchlets only once divided with one-jointed segments, 
6-—8 in a whorl, similar. 
1. C. flewilis (Linn.) ; nioneecious, stem slender equal flexible 
transparent, branchlets pointed but not mucronate nearly equally 
forked or trifid, nucules and globules together in the forks of 
the branchiets without bracts. 
C. flexilis, Zinn. Sp. Pl. 1624 (in part); Eng. Bot. t. 1070; A. 
Braun in Flora, xviii. 50; Ann. Se. Nat. ser. 2.1. 351. 
C. Brongniartiana, Wedd. in Cat. Fl. Paris. 152. 
Nitella Brongniartiana, Coss. et Germ. Fl. Paris. 682; Atl.t.40C. 
Rather slender, green, pellucid. Primary branchlets seldom 
more than once divided. Sometimes the axillary branchlets are 
much more divided and clustered, when it has passed for C. nidi-. 
fica with collectors. Nucules with six striz. 
Henley near Ipswich, Buddle. Yarmouth, Mr. D. Turner. 
Berrmgton Pool, Salop, Rev. E. Williams. In the river at Bed- 
ford, Dr. Abbot ; Smith. Richmond, Yorkshire, Mr. J. Ward. 
Stowting, Kent, Rev. G. H. Smith. Whitehorn, Wigtonshire ; 
Clova, Forfarshire, Prof. Balfour. Reche Lode, and Lord’s Bridge 
near Barton, Cambridgeshire. 
Annual. May. “April to August,” Sm. 
2. C. syncarpa (Thuil.) ; dicecious, stem slender equal flexible 
transparent, branchlets bluntish apiculate nearly equally forked 
or trifid, nucules or globules at the forks of the branchlets 
without bracts. 
C. synearpa, “ Thuil. Fl. Par. 473 ;” A. Braun in Flora, xviii. 51 ; 
Ann. Se. Nat. ser. 2.1. 352; Mutel Fl. France. iv. 160. 
Nitella synearpa, Coss. et Germ. Fl. Par. 682 ; Atl. t. 39 (not good). 
A slender diaphanous plant closely resembling C. flevilis, but 
dicecious. Nucules with five striz and scarcely any crown. It 
is the supposed C. gracilis of Mr. W. Wilson in Hook. Bot. 
Mise. i. 336. No. 2. 
Woodmancote, Sussex, Mr. Borrer. Cwm Idwel, Caenarvon- 
shire. Ma’am, Galway. 
Annual. May. 
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