Ser. Meianospebmele. Fam. Vwtyotem. 



Plate XL 



ASPEROCOCCUS TURNER!, JZtat. 



Gen. Char. Frond unbranched, tubular, cylindrical or rarely compressed, 

 inflated, continuous, membranaceous. Root naked, scutate. Fructifica- 

 tion scattered over the whole frond, in minute, distinct dots, composed 

 of roundish, prominent seeds, intermixed with club-shaped filaments. 

 Asperococcus — corruptly formed from asper, rough, and kokkos, a 

 seed ; because the dots of seeds are mixed with bristle-like filaments. 



Asperococcus Turneri ; frond inflated, cylindrical, obtuse, oblong or club- 

 shaped, suddenly contracted at the base into a short stem, thin and 

 membranaceous ; dots of fructification minute, roundish. 



Asperococcus Turneri, Rook. Br. Fl. vol. ii. p. 277. Wgatt. Alg. Bauvi. 



no. 59. Harv. in Mack. Fl. Rib. part 3. p. 175. Harv. Man. p. 34. 

 Asperococcus bullosus, Lamour. Fss. p. 62. t. 6. f. 5. Grev. Alg. Brit. p. 51. 



Eadl. 3rd Suppl. p. 26. J. Ag. Alg. Medlt. p. 41. Menegh. Alg. Ital. el 



Balm. p. 166. 

 Asperococcus rugosus, /3 bullosus, Bub. Bot. Gall. vol. ii. p. 056. 

 Exc(elium bullosum, Ag.Sp.Alg. vol. i. p. 146. Syst. p. 262. Spreng.Syst. 



Veg. vol. iv. p. 328. Kiitz. Phyc. Gen. p. 326. t. 21. f. 1. 

 Gastridium opuntia, Lyngb. IL/d. Ban. p. 71. t. 18. 

 Ulva Turneri, Billw. — . Fug. Bot. t. 2570. 



Hab. In the sea, on stones and the larger Alga?, on Zoster a, &c, often 

 growing in 4-5 fathoms. Annual. Summer and Autumn. Coast of 

 Sussex, Mr.Borrer. Devonshire, Mrs. Griffiths. Bantry Bay, Miss 

 Hutchins. Appin, Capt. Canuichael. The " Murrough " atWicklow, 

 W.'H. II. (1833). Strangford Lough and Clew Bay, Mayo, Mr. W. 

 Thompson. rloundstone Bay, Galway, Messrs. IV . Thompson, R. Ball, 

 and /;. Forbes (1840). Howth. Miss Ball. Ireland's Eye and Lambay, 

 Mr. R. Ball. Abundant on the Kerry Coast, Mr. II'. Andrews. 

 Dingle and Yalentia, V. II. II. Jersey, Miss White. 



Geogr. Distr. Atlantic coast of Europe, from Norway (Lyngb.) to Spain. 

 Baltic Sea. Mediterranean and Adriatic Seas. Southern Ocean, Agardh. 



Desc. Root a minute scutate disc. Fronds commonly from 6 to 12 inches in 

 Length, and from half an inch to an inch and a hall* in diameter, but occasion- 

 ally 16 to 42 inches in length and from 2 to 4 in diameter, suddenly con- 

 tracted at the base into a thread-like stem, which varies from \ to j an 

 inch in Length, inflated, bag-like, and of nearly equal breadth throughout, 

 sometimes club-shaped, very obtuse, here and there occasionally contracted, 

 delicately membranaceous and subtransparent, pale olive or inclining- to 

 fawn colour. When young tin.' frond i- greenish olive with a Bofi and sub- 

 gelatinous feel and adheres to paper, but older specimens are harsher, of 

 rather thicker substance, and will not adhere to paper in drying. Dots 

 of fructification \ha minute, roundish or oblong, sometimes confluent, 

 densely scattered over !'"• surface, composed of dark-coloured, elliptical 

 spores Lying ow the surface of the frond, among which, in greater or Less 



I) 



