Chara.] CHARACEjE. 353 



Ditches, lakes, and still waters, frequent. I have a specimen from 

 Mr. W. H. Harvey of a variety found by him in the lower lake of Kil- 

 larney, with the branches of the whorls more elongated than usual, and 

 the fertile ramuli nestled among them, as described by Dr. Hooker. 



3. C. nidifica, (Ed. Clustered Chara, Smooth, flaccid? 

 somewhat glossy and pellucid, simple below ; primary whorled 

 branches simple, elongated, fertile ones very numerous, 

 crowded and proliferous ; nucules separated from the globules 

 on the same plant (Borrer), bracteated. Hook. Br. FL v. ii. 

 p. 245.— FL Dan. t. 761. E. Bot. t. 1703. E. FL v. i. p. 8.— 

 Nitella nidifica, Ag. Syst. Alg. p. 125. 



Lough Neagh ; Mr. Templeton. 



* * Opaque and very brittle, striated, often spirally. (Chara Ag.) 



4. C. vulgaris, Linn. Common Chara. Smooth, opaque, 

 brittle (but not incrusted), very obscurely striated; branches of 

 the whorls slender, subulate ; fertile ones with many short ra- 

 muli or bracteae, three or four of which are much longer than 

 the globule and nucule that they accompany. Br. FL v. ii. 

 p. 246.— E. Bot. t. 336. E. FL v. up. 6. Ag. Syst. Alg. 

 p. 128. 



Ditches and slow streams, frequent. 



5. C. Hedwigii, Ag. Hedwigian Chara. Elongated, 

 smooth, opaque, brittle, (sometimes partially incrusted,) ob- 

 scurely striated ; branches of the whorls subulate, the sterile 

 ones with many short ramuli or bractese, three or four of which 

 are shorter than the nucule and globule that they accompany. 

 Br. FL v. ii. p. 246.— Ag. Syst. Alg. p. 129. 



In a fresh-water pool near Portrush ; Mr. D. Moore. — Larger than 

 the preceding, with more numerous fertile branches and shorter bracteae. 

 The branches are jointed in both at the setting on of the ramuli or 

 bracteas, which, being numerous, the joints are consequently numerous. 



6. C. aspera, Willd. Rough Chara. Slender, opaque, 

 brittle, obscurely striated, every where beset with patent, scat- 

 tered spinules ; branches of the whorls subulate, the fertile ones 

 with many short ramuli or bracteae, of which three or four ac- 

 company the nucule or globule (on different plants), uncertain 

 in length. Br. FL v. ii. p. 246.— Ag. Syst. Alg. p. 130. Grev. 

 Scot. Cr. FL t. 339. 



By the side of the Bann river, below Coleraine ; Mr. D. Moore. 



7. C. hispida, Linn. Hispid Chara. Opaque, brittle, stri- 

 ated, covered more or less thickly by a calcareous crust ; 

 branches of the whorls subulate; fertile ones with many short 

 ramuli or bracteae, of which three or four are longer than the 

 nucule and globule that they accompany. — a. major ; larger; 

 stems spinulose. Br. FL v. ii. p. 246. — C. hispida, Linn.—* 



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