NATURAL HISTORY. 
GIGARTINA. 
The plants of this genus have scutate roots, and 
filiform aud much branched fronds—the fructification 
as of two kinds, Capsules—and inate clusters of 
seeds in pod-shaped branchlets. 
1, G. Purcatus. Turner’s Hist. Fuci, t. 180. 
E. Bot. t. 1089, (Fucus Puicatus,) Fre. 
quent along the coast. 
2. G. Purpurascens. Turn. Hist. Fuci, t. 9. 
E. Bot, t. 1243. (Fucus Purpurascens.) 
T'requent on the coast. 
o G. Pinastrorpes. Turn. Hist. Fuci. 
Bot. t. 1042. (Fucus PINAsTROIDEs.) 
quent on the coast. 
E. 
Fre- 
CHONDRIA. 
With filiform branched fronds. The frauctification 
double, external tubercles, and naked granules immere 
sed in the branches. 
jl, -G:. Osrusa. 
Turn. Hist. Fuci,t.21. E. 
Bot. t. 1201. {Fucus Ostusus.) Torquay, 
Exmouth, Dawlish, &c. 
9, C. PInnNATIFIDA. 
2. Turn. Hist. Fuci, t. 20. 
E. Bot. t. 1202. Ner. Brit. p. 48. t. ll. and F. 
OsmuNDA. Ner, Brit. p.47.t. 11. Rocks at 
Dawlish, Teignmouth, &c. 
3. C, OvAtis, 
Turn, Hist. Fuci, t. 81. E.. 
