Ser. RHODOsPERMEA. Fam. Chondriea. 
Puate CXVIII. 
CHYLOCLADIA OVALIS, Zoot. 
Gen. Cuar. Frond (at least the branches) tubular, constricted at regular 
intervals, and divided by internal diaphragms into joints, filled with a 
watery juice, and traversed by a few longitudinal filaments ; periphery 
composed of small, polygonal cells. Fraetification of two kinds on 
distinct individuals ; 1, spherical, ovate or conical capsules (ceramidia) 
containing a tuft of wedge-shaped spores on a central placenta. 2 
tripartite tetraspores, immersed in the smaller branches, near their 
apices. CHyLocnapia (Grev.),—from yvdds, juice, and xdddos, a 
branch. 
Cuytociapra ovalis; frond cylindrical, solid, irregularly dichotomous, 
naked below, above beset with simple, elliptical, rarely elongated and 
jointed, tubular ramuli; capsules spherical, with a wide transparent 
border. 
CuyLociapia ovalis, Hook. Br. Fl. vol. ii. p. 297. Wyatt, Alg. Danm. 
no. 114. Harv. in Mack. Fl. Hib. part 3. p.199. Harv. Man. p. 71. 
GastTRIDIUM ovale, Grev. Alg. Brit. p. 116. t. 14. 
GASTROCLONIUM ovale, Kiitz. Phyc. Gen. p. 441. 
LomeEntarra ovalis, Endl. 3rd Suppl. p. 43. 
CuHonprta ovalis, 4g. Sp. Alg. vol.i. p. 348. dg. Syst. p. 204. Spreng. 
Syst. Veg. p. 342. 
GIGARTINA vermicularis, Lamour. Ess. p. 48. t. 4. f. 8, 9, 10. 
Fucvs ovalis, Huds. Fl. Ang. p.573. Sm. E. Bot.t. 711. Turn. Syn. t. 30. 
Turn. Hist. Fue. t. 81. 
Fucts vermicularis, Gm. Hist. p. 162. t.18.f.4. Lightf. Fl. Scot. p. 958. 
Fucus sedoides, Good. and Woodw. in Linn. Trans. vol.iii. p. 117. Stack. 
Ner. Brit. p. 67. t. 12. 
Has. On rocks and stones within tide marks. Annual. Spring and 
summer. Frequent on the southern shores of England, and on the 
Inish coasts. Scarborough, Hudson. Little Isles of Jura, Lightfoot. 
Papa Westra, Lieut. Thomas and Dr. Me Bain. Jersey, Miss Turner. 
Geoer. Distr. Atlantic coasts of Europe. Adriatic Sea. North-west coast of 
America. 
Descr. Root accompanied by grasping branched fibres. Fronds tufted, erect, 
from two to ten inches high, cylindrical, as thick as small twine, of nearly 
equal diameter throughout, irregularly dichotomous or vaguely divided, the 
lower half simple and mostly naked, the upper more or less closely forked, 
all the lesser divisions clothed with imbricated, crowded, obovate or oblong, 
obtuse, saccate ramuli. In some specimens these ramuli are simple, ex- 
actly elliptical, composed of a single joint, and tapering at base into & 
minute petiole ; in others they are linear-oblong, composed of several joints, 
