i 
Ser. RHoDOSPERME. Fam. Gloiocladee. 
Puate XXXVI. 
NEMALEON MULTIFIDUM, J 4. 
Gen. Cuar. Frond cylindrical, gelatinoso-cartilaginous, elastic, solid ; 
axis columnar, dense, composed of closely packed, longitudinal, inter- 
laced filaments ; the periphery of elongated, horizontal, dichotomous 
filaments, whose ultimate ramuli are moniliform and coloured. rue- 
tification; globular masses of spores (favellidia), attached to the 
filaments of the periphery. Nematzon (Zozzetti.)—from vipa, a 
thread, and Xniov, a crop; crop of threads. 
Nemateon multifidum ; frond dichotomous, slightly branched, dull purple ; 
the axils rounded. 
NEMALEON multifidum, J. 4g. in Linnea, vol. xv. p. 453. Endl. 3rd Suppl. 
p- 37. 
Mesoetora multifida, 4g. Syst. p.50. Berk. Alg. t.16.f.1. Harv. in Hook. 
Br. Fl. vol. ii. p.385. Mack. Fl. Hib. part 3. p.185. Wyatt. Alg. Danm. 
no.98. Harv. Man. p.47. Mont. Pl Cell. Canar. p. 189. 
Mesoeatora Balani, Carm. MSS. 
CHORDARIA multifida, Zyngb. Hyd. Dan. p.51. Fl. Dan. t. 1669. 
Cu#TopHoRA multifida, Hook. Fl. Scot. part 2. p. 76. 
Rivuzaria multifida, Web. et Mohr. Roth. Cat. Bot. vol. ii. p. 335. 
HELMINTHORA multifida, Avitz. Phyc. Gen. p. 391. t. 44. f. 3. 
Var. 8, simplex ; frond simple or nearly so. 
NEMALEON lubricum, Dudy.? e¢ Auct. 
Has. On rocks, Balani, and shells (frequently on Mytilus rugosus), near 
low-water mark, m exposed situations. Common along the western 
shores of Scotland and Ireland. Downshire, Wr. Templeton. Tor- 
quay Mrs. Griffiths. Falmouth, Wiss Warren. Balbriggan, Wiss 
Gower. Var. 8, at the Land’s End, Mr. Ra/fs. 
Grocer. Distr. Atlantic shores of Europe. Mediterranean sea. Canary Islands, 
Webb. 
Descr. Root a fleshy, expanded disc. Fronds dull purplish brown, 3-10 inches 
long, 1-2 lines in diameter, cylindrical, very elastic, firmly gelatinous or 
somewhat cartilaginous, generally forked near the base, and repeatedly 
forked at long intervals upwards, but varying much in the degree of furca- 
tion. Avils all remarkably wide, and rounded ; apices but slightly tapered, 
blunt. 427s about one fourth of the diameter of the frond, very dense, 
compared by Agardh to a column, and by Carmichael to a “ medullary 
cord’, composed of closely adherent slender filaments, from which issue 
the long, horizontal, dichotomous filaments of the periphery, whose lower 
ramifications are colourless, with subcylindrical joints; their upper, and 
terminal, coloured and beautifully beaded. Occasional reflexed, root-like 
K 2 
