Ser. RuoposPERMEX. Fam. Spherococcoidee. 
Puate LXV. 
GRACILARIA CONFERVOIDES, Grev. 
Gen. Cuan. Frond filiform or rarely flat, carnoso-cartilaginous, continuous, 
cellular ; the central cells very large, empty, or full of granular matter ; 
those of the surface minute, forming densely packed, vertical filaments. 
Fructification of two kinds, on distinct individuals ; 1, convex tubercles 
(coccidia) having a thick pericarp composed of radiating filaments, 
containing a mass of minute spores on a central placenta; 2, ¢etras- 
pores imbedded in the cells of the surface. Gracinaria (Grev.)— 
from gracilis, slender. 
Gractiaria confervoides; frond cartilaginous, cylindrical, filiform, irregu- 
larly (often very slightly) branched; branches long, subsimple, erect ; 
ramuli few, tapering at each end; tubercles scattered, sessile, roundish, 
subacute. 
GRACILARIA confervoides. Grev. Alg. Brit. p. 123. 
Hyenea confervoides, J. 4g. dig. Medit. p.149. Endl. 3rd Suppl. p. 50. 
SpH#£rococcus confervoides, dy. Sp. Aig. vol. i. p. 303. Syst. p. 232. 
Spreng. Syst. Veg. vol. iv. p. 338.  Kiitz. Phyc. Gen. p. 408. t. 60. iu. 
GicaRTINa confervoides, Lame. Ess. p.48. Lyngb. Hyd. Dan. p.43. Hook. 
Brit. Fl. vol. i. p. 299. Wyatt, Alg. Danm. no. 75. Harv. in Mack. Fl. 
Hib. part 3. p. 200. Harv. Man. p. 74. 
Fucus confervoides, Linn. Sp. Pl. p. 1629. Syst. Nat. vol. ii. p. 719. With. 
vol. iv. p. 114. Turn. Syn. vol. ii. p. 328. #. Bot. t.1668. Turn. Hist. 
t. 84. . Esper, Ic. Fuc. vol. i. p. 136. t.68. Stack. Ner. Brit. p. 96. t. 15. 
Fucus longissimus, Gm. Hist. p. 134. t.13. Stack. Ner. Brit. p. 99. t. 16. 
Fucus verrucosus, Huds. Fl. Ang. p.5688. Gm. Hist. 136. t.14. f.1. Stack. 
Ner. Brit. p. 26. t. 8. 
Fucus albidus, Huds, Fl. Ang. p. 588 (Excel. Syn. Raii.) Good. and Woodw. in 
Linn. Trans. vol. iii. p. 210. Esper, Ic. p. 147. t. 100. With. vol. iv. p. 118. 
Fucus flagellaris, Esper, 2. c. t. 105. 
Has. On rocks and stones in the sea, near low water mark, and at a greater 
depth. Perennial. Summer and Autumn. Not uncommon on the 
British coasts. Jersey, Miss White. 
Geoer. Distr. Atlantic Ocean, from the British shores to those of North Africa. 
North Sea, very rare. Mediterranean Sea. 
Descr. Root, a small disc, accompanied by fibres. Fronds one or several from 
the same base, from three to twenty inches in length, cylindrical, as thick 
as small twine, gradually tapering towards the apex to a long, subulate 
point, very irregularly branched. Some specimens divide near the base into 
a few, long, simple, naked branches, which are almost destitute of ramuli; 
others are more or less dichotomous, with many lateral, secund branches, 
and tolerably furnished with similar ramuli. Usually the branches are very 
