Ser. RHODOSPERMEA. Fam. Chondriee. 
Puate CXIV. 
CHRYSYMENIA CLAVELLOSA, Z 4. 
Gen. Cuar. Frond tubular, continuous (not constricted or jointed), filled 
with a watery juice, and traversed by few longitudinal filaments ; its 
walls composed of several rows of cells, the innermost of which are 
distended and much elongated, the outer gradually smaller, and the 
ultimate very minute. /rwctification of two kinds, on distinct indivi- 
duals; 1, ovate or conical capsules (ceramidia) containing a dense 
mass of angular spores, fixed to a central placenta. 2, triparted ¢e¢ra- 
spores immersed in the ramuli. CurysyMENtA (J. Ag.),—from xpuceos, 
golden, and vpn, a membrane; because the species acquire golden 
tints if long steeped in fresh water. 
CurysYMENIA clavellosa ; frond gelatino-membranaceous, very much 
branched in a repeatedly pinnate manner, branches of various lengths, 
mostly distichous; ramuli distichous or quadrifarious, attenuated at 
base ; capsules conical. 
CuRYSYMENIA clavellosa, J. 4g. Medit. p.107. Endl. 3rd Suppl. p. 42. 
CHONDROTHAMNION clavellosum, Avitz. Phyc. Gen. p. 438. t. 53. f. 2. 
CHONDROTHAMNION confertum, De Not. 
CuyLociapi clavellosa, Hook. Br. Fl. vol. i. p. 297. Wyatt, Alg. Danm. 
no. 23. Harv. in Mack. Fl. Hib. part 3. p.199. Hare. Man. p. 71. 
*GastRipiumM clavellosum, Lyngb. Hyd. Dan. p. 710. t.17.  Grev. Alg. Brit. 
p. 115. 
GasTRIDIUM purpurascens, Lyngd. 1. c. p. 69. t. 17. 
CuHonpria clavellosa, dy. Sp. Alg. vol.i. p. 353. Ag. Syst. p. 206. Hook. 
Fi. Scot. part 2. p. 105. Grev. Fl. Edin. p. 291. Spreng. Syst. Veg. 
vol. iv. p. 342. 
GicarTINA clavellosa, Lamour. Ess. p. 49. 
* Fucus clavellosus, Zurn. in Linn. Trans. vol. vi. p.133.t.9. Turn. Syn. 
p- 373. Turn. Hist. Fuc. t.30. Sm. Eng. Bot. t. 1203. 
Has. On rocks, stones, and parasitical on the smaller Alge near low-water 
mark ; also on the stems of Laminaria, at a greater depth. Annual. 
Spring and summer. Found on all the British coasts from Orkney 
to Cornwall. _ Jersey. 
Grocer. Distr. Atlantic shores of Europe, from Norway to Spain. Baltic Sea. 
Mediterranean Sea. Tasmania. 
Derscr. Root a minute conical disc. Fronds from three to twelve or fourteen 
inches long, from a quarter of a line to nearly two lines in diameter, with 
a generally undivided principal stem, which gradually widens from the base 
to the middle, and then tapers towards the apex. This stem is closely be- 
set from a short distance above its base to its extremity, with lateral, patent, 
opposite or alternate, generally distichous branches, of very various lengths, 
and having a lanceolate outline, which are in like manner pinnated with a 
second, third or even fourth series of smaller branches or ramuli, the last of 
which are from one to two or three lines long, spindle-shaped, and sub- 
acute. Always when young, and very generally in all stages, the ramuli 
are, like the other parts of the frond, distichous; but sometimes they are 
