Ser. RHoposPERME®. Fam. Spongiocarpee. 
Piate CLXXXVII. 
CHONDRUS NORVEGICUS, Lamour. 
Gen. Cuar. Frond cartilaginous, nerveless, compressed or flat, flabelliform, 
dichotomously cleft ; formed internally of three strata; the cnuer, of 
densely packed, longitudinal fibres; the medial of small roundish 
cells ; the outer, of vertical, coloured, moniliform filaments. Fructi- 
fication; 1, prominent tubercles (nemathecia) composed of radiating 
filaments, whose lower articulations are at length dissolved into 
spores (?); 2, tetraspores collected into sori, eaviceet in the surface 
of the frond; 3, favellidia, scattered through the surface, composed 
of minute spores. Cxonprus (Stack.),—from xov8pos, cartilage. 
Cuonprvs Norvegicus ; frond linear, dichotomous, flat; the axils patent ; 
the apices rounded ; favellidia minute, imbedded in the substance, or 
prominent, sessile warts (wemathecia) scattered over both surfaces of 
the frond. 
CHonprvs Norvegicus, Lamour. Ess. p.39. Lyngb. Hyd. Dan. p. 16. Grev. 
Alg. Brit. p.130. Harv. Man. p.77. Harv. in Mack. Fl. Hib. part 3. 
p- 202. Wyatt, Alg. Danm. no. 120. J. Ag. Alg. Medit. p.95. Mont. 
Fl. Algier, p.117. Endl. 3rd Suppl. p. 39. 
SpH#rococcus Norvegicus, 4g. Sp. Alg. vol. i. p. 255. Ag. Syst. p. 218. 
Spreng. Syst. Veg. vol. iv. p. 335. 
Oncortytus Norvegicus, Kiitz. Phyc. Gen. p. 411. 
Fucus Norvegicus, Gunn. F7. Norv. vol. ii. p. 122. t.3.f.4. Turn. Syn. 
p- 222. Turn. Hist. t.41. E. Bot. t.1080. Stack. Ner. Brit. t. 18. 
Fucus Devoniensis, Grev. in Wern. Trans. vol. iii. p. 396. 
Has. On rocks, near low-water mark. Annual? September to March. 
Rather rare. Dover and Swansea, Di/dwyn. Exmouth, Sir 7. Frank- 
land. Devonshire (several places), Mrs. Griffiths. Sussex, Mr. Borrer. 
Falmouth Bay, Miss Warren. Mounts Bay, Vr. Ra/fs. Plymouth, 
Rev. W. 8. Hore. Bantry, Miss Hutchins. Youghal, Miss Ball. 
Miltown Malbay, &c., and Wicklow, WW. H. H. Antrim, Mr. Moore. 
Saltcoats, Rev. D. Landsborough. 
Geoer. Distr. Coast of Norway, Gunner. More frequent on the shores of France 
and Spain. Mediterranean Sea. 
Descr. Root, an expanded callus. Fronds two to three inches high, more or 
less tufted, rising with a short, cylindrical stem, as thick as small twine, 
which soon forks, and alzaost immediately flattens, gradually widening till 
it becomes from an eighth to a quarter of an inch in width, again forks 
and repeats this process more or less regularly three or four times; the 
segments continuing nearly of the same breadth throughout and ending 
in a very blunt, simple, or emarginate point, all the axils remarkably 
patent. Sometimes there is scarcely any stem, the frond branching nearly 
from the base; in other specimens the undivided stipe is sometimes nearly 
VOL. II. R 
