P la t e XI.
ASPEROCOCCUS TURNERI, Hook.
G e n . C h a r . Frond unbranclied, tubular, cylindrical or rarely compressed,
inflated, continuous, membranaceous. Root naked, scutate. Fructification
scattered over the whole frond, in minute, distinct dots, composed
of roundish, prominent seeds, intermixed with club-shaped filaments.
Asperocoocus—corruptly formed from asper, rough, and kokkoj, a
seed; because the dots of seeds are mixed with bristle-hke filaments.
Asperocoocus Turneri; frond inflated, cylindrical, obtuse, oblong or club-
shaped, suddenly contracted at the base into a short stem, th in and
membranaceous; dots of fructification minute, roundish.
A s pb ro co c cu s Turneri, Hook. Br. M. vol. ii. p. 277. Wyatt. Alg. Banm.
n o . 59. Harv. in Mack. M. Hib.-garti.Tp.lH). Harv. Man.-p. 31.
A s pero coocus buUosus, Lamour. Ess. p . 62. t. 6. f. 5. Grev. Alg. Brit. p.51.
Endl. 3rd Suppl. p. 26. J. Ag. Alg. Medit. p. 41. Menegh. Alg. Ital. et
Balm. p. 166.
A s pero co o c u s ra g o su s , ß buUosus, Bub. Bot. Gall. vol. ii. p. 956.
E n c ie l ium b u llo su in , 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.
G a s t r id iu m o p u n tia , lyngb. Hyd. Ban. p . 71. t. 18.
U lva Tm-neri, Billw. — . Eng. Bot. t. 2570.
H a b . In the sea, on stones and the larger Algm, on Zostera, &c., often
growing in 4 -8 fathoms. Annual. Summer aud Autumn. Coast of
Sussex, Mr.Borrer. Devonshire, Mrs. Griffiths. Bantry Bay, Miss
Hutchins. Appin, Capt. Carmichael. The '“ M urrough ” at Wicklow,
W. H. H. (1833). Strangford Lough and Clew Bay, Mayo, Mir. TV.
Thompson. Eoundstone Bay, Galway, Messrs. TV. Thompson, R . B a ll
and Abries (1840). HoTNih. Miss B all. Ireland’s Eye and Lambay,
Mr. R . Ball. Abundant on the Kerry Coast, Mr. TV. Andrew^
Dingle and Valentia, TV. H. H. Jersey, Miss TVhite.
G e o g r . D is t r . Atlantic coast of Europe, from Norway (lyngb.) to Spain.
Baltic Sea. Mediterranean and Adriatic Seas. Southern Ocean, Agardh.
D e s c . Boot a minute scutate disc. Erotvds commonly from 6 to 12 inches in
length, and from half an inch to an inch and a half in diameter, but occasionally
16 to 42 inches in length and from 2 to 4 in diameter, suddenly contracted
at the base into a thread-like stem, which varies from A to i an
inch in length, inflated, bag-like, and of nearly equal breadth throuo-hout,
sometimes club-shaped, very obtuse, here and there occasionally contracted’
delicately membranaceous and subtransparent, pale olive or incHuhio- to
fawn colour. When young the frond is greenish olive with a soft and sub-
gelatinous feel and adheres to paper, but older specimens are harsher, of
rather thicker substance, and will not adhere to paper in di-ying. Dots
of fructification very minute, roundish or oblong, sometimes confluent
densely scattered over the surface, composed of dark-coloured, ellipticai
spores lying on the sui-face of the froild, among which, in greater or loss