90 Mr. C. C. Babington on the British species of Chara. 



minute tubercles ; spines generally very numerous, sometimes 

 almost wanting ; whorls of elongate, acuminate (by having the 

 terminal segment denuded of outer tubes) branches, each of 

 which has about six nodes and a whorl of 4-5 short bracts at 

 each node. 



Pits and deep ditches, especially on a peaty soil. 



Annual. May to August. 



14. C. tomentosa (Linn.) ; dioecious (?), stem thickened upwards 

 spirally sulcate rough brittle armed with scattered obtuse pa- 

 pillcB, branchlets incurved, bracts unilateral ovate-oblong mn- 

 cronate- acute, nucule shorter than the bract on each side of it 

 longer than the three in front. 



C. tomentosa, Limi. Sp. PL 1624 ; Fries \ Herb. Norm. v. 100 ; Mu- 



tel Fl. Frmic. iv. 163 ; Reich. ! Ft. exc. 1.50. 

 C. latifolia, Willd. ! '' Berol. Schr. iii. 12f) ;" Hook. Icon. t. 532. 

 C. ceratophylla jS. macroptila, A. Braun in Flora, xviii. (jd ; Ann. Sc. 



Nat. ser. 2. i. 35,5. 



The granules and nucules are probably upon different plants. 

 Stem opake, whitish green, covered with very minute tubercles, 

 and bearing distant somewhat whorled short obtuse papillse. 

 liranchlets like the stem ; their terminal division thicker, inflated, 

 of one pellucid tube. Bracts pellucid, barren ones unilateral (?). 

 " Nucule with a large ovate bract on each side, and three small 

 linear-oblong ones in front, also having three minute acute tu- 

 bercles on the opposite side of the stem. Globule from a whorl 

 of two or three large bracts not having smaller ones in front, 

 but with two or three tubercles on the opposite side of the stem.'* 

 Hooker. 



In the foreign plant (Beich. Fl. exsic. 92, which is the au- 

 thentic C. latifolia, Willd.), the bracts are apparently whorled. 

 Fries's specimen (Herb. Norm. v. 100) is without any incrusta- 

 tion, smooth and scarcely twisted. Our plant is certainly the 

 C. tomentosa (Linn.), C. latifolia (Willd.), and the C. ceratophi/lla 

 (Wallr.) is a variety of it. 



Belvidere Lake, Westmeath, Ireland, Mr. D. Moore. 



c. Stem coated with three times as many tubes as there are branchlets 

 in each whorl. 



15. C. aspera (Willd.); dioecious, stem finely striate smooth 

 flexible beset with setaceous patent spines, branchlets abbre- 

 viated, bracts whorled slender (two inner ones longer), nucules 

 narrowhj oblong shorter than the bracts. 



i). aspera, " Willd. in Berol. Mag. d. N. iii. 298 ;" Wallr. Ann. Bot. 

 185. t. 6. f. 3 ; A. Braun ! in Flora, xviii. 71 ; Ann. Sc. Nat. ser. 2. 

 i. 356 ; Mutel Fl. Franc, iv. 164 ; Coss. et Genu. Fl. Paris, 680 ; 

 All. t.38 D; Fug. Bot. ySuppl. t. 2738; Fries] Herb. Norm. iii. 100. 



