Ser. CHLOROSPERME®. lam. Siphonea. 
Puate CCXC. 
CODIUM BURSA, ~%. 
Gen. Cuar. Frond green, sponge-like (globular, cylindrical, or flat; simple 
or branched), composed of tubular, interwoven, inarticulate filaments 
(elongated, branching cells). Hruetification, opake vesicles (conio- 
eyste) attached to the filaments. Copium (Stack.),—from xaédcoy, 
the shin of an animal. 
Copium Bursa; frond spherical, hollow. 
Copium Bursa, 4g. Sp. Alg. vol. i. p.457. Ag. Syst. p. 178. Grev. Alg. 
Brit. p.186. Hook. Br. Fl. vol. ii. p. 318. Harv. in Mack. Fl. Hib. part 3. 
p- 233. Harv. Man, ed. 2. p.193. Endl. 3rd Suppl. p. 21. ‘Kitz. Phyc. 
Gen. p. 309. Kiitz. Sp. Alg. p. 502. 
Sponeovium Bursa, Lamour. Ess. p. 73. 
Lamarcxta Bursa, Olivi, Zool. Adriat. p. 258. 
Acarputa Bursa, Cabrera, fide Ag. 
Fucus Bursa, Zurn. Hist. t.136. E. Bot. t. 2183. 
Aucyontum Bursa, Linn. Syst. Nat. p. 1295. 
Bursa marina, C. Bauhin, Pin. p. 368. Ray, Syn. p. 31. no. 3. 
Has. On submarine rocks. Perennial. Summer. Very rare.—“ Coast 
of Sussex, plentifully,” Pad/as (quoted by Turner). Shores of Corn- 
wall, Mr. Rashleigh. Near Torquay, Mrs. Griffiths. Near Belfast, 
Mr. Templeton. 
Geogr. Distr. Atlantic shores of France and Spain. Mediterranean and 
Adriatic Seas. 
Descr. Fronds attached to the rock by interwoven and matted fibres, several 
fronds growing together, spherical, hollow, varying in diameter from one to 
six or eight inches, soft and sponge-like, entirely composed of slender fibres 
closely interwoven together; those which form the groundwork of the 
frond matted round the inner surface of the hollow ball, and throwing out 
to the circumference minute club-shaped, vertical ramuli, which are closely 
packed together, and extend with their points erect, and sides parallel, like 
the threads in a pile of velvet. Substance soft. Colowr, when growing, a 
dark, full green, becoming much paler when dry. Fructification not ob- 
served, but probably similar to that of C. tomentosum. 
RR nnn nnn 
Not bemg so fortunate as to possess a British specimen of 
this very rare and curious plant, I have been forced to make 
the drawing for the’ plate from some of a fine series which I owe 
1620386” 
