Ser. MELANOSPERMEZ. Fam. Coccocarpea. 
Prats CCLXVI. 
GIGARTINA TEEDII, Zamour. 
Gen. Cuar. Frond cartilaginous, either filiform compressed or flat, irre- 
gularly divided, purplish-red ; the axis or central substance com- 
posed of branching anastomosing longitudinal fibres; the periphery 
of dichotomous filaments, laxly set im pellucid jelly; their apices 
moniliform, strongly united together. ructification double, on dis- 
tinct plants; 1, external ¢wbercles, containing, on a central placenta, 
dense clusters of spores, scattered among the filaments of the peri- 
phery. Gigartina (Lamour.),—from yyaproy, a grape stone, which 
the tubercles resemble. 
Gieartina Teediz; frond cartilagineo-membranaceous, flaccid, flat, linear, 
acuminate, repeatedly pinnate; the pinne opposite or alternate, hori- 
zontally patent, distichous, set with horizontal, spine-like ramuli; 
coccidia globose, on the ramuli, sessile. 
GicarTIna Teedii, Lamour. Ess. p.49.t.4. f.11. Hook. Br. Fi. vol. ii. p. 301. 
Wyatt, Alg. Damn. no. 27. Harv. Man.ed.1. p.76. Endl. 3rd Suppl. p. 42. 
CHONDRACANTHUS Teedii, Kiitz. Phyc. p. 399. 
RawopomENta Teedii, Grev. Alg. Brit. p. 96. 
Spu#£rococcus Teedii, 4g. Sp. Aly. vol.i. p.277. Ag. Syst. Alg. p. 225. 
Grev. Crypt. Fl. t. 356. 
Fucus Teedii, Roth, Cat. Bot. vol. iii. p. 108. t.4. Turn. Hist. Fuc. t. 208. 
Has. On rocks, at the extreme limit of low water. Perennial. Very rare. 
Elberry Cove, Torbay, Mrs. Griffiths (1811). 
Gzoer. Distr. Atlantic coasts of France, Spain, and Portugal. Abundant in 
the Mediterranean. 
Descr. Root a flattened disc. Fronds numerous from the same base, densely 
tufted, from three to six inches long, distichous, excessively branched in a 
more or less regularly pinnate manner, all the divisions horizontally patent. 
The main stems are from one to two, or, in very luxuriant specimens, three 
or four lines in breadth in the middle, and taper towards both ends, being 
attenuated upwards into a long slender point. They are either simple or 
forked, or irregularly cloven, flexuous, and closely beset with lateral branches 
which are simply, doubly, or trebly pinnate, and always beset with short, 
spine-like, horizontally patent ramuli. Different specimens vary much in the 
amount of branching, and in the breadth of the frond. Fructification has 
not been found in this country. The favellidia are enclosed in tubercles as 
large as poppy seed, plentifully scattered over the sides of the ramuli, and 
partially immersed in them. Colour, when quite recent, a dull brownish 
red; but in fresh water and in decay the frond assumes various tints of 
red and yellow, and finally becomes verdigris green. Substance between 
cartilaginous and membranaceous, soft and flexible, becoming rather horny 
when dry. In drying the frond shrinks considerably, and scarcely adheres 
to paper. 
ene, —~ 
