Ser. RHopOSPERMEA. Fam. Rhodomelea. 
Puate CCLIII. 
DASYA COCCINEA, “4%. 
Gen. Cuar. Frond filamentous; the stem and branches mostly opake, 
irregularly cellular (rarely pellucid and longitudinally tubed), com- 
posed internally of numerous parallel tubes surrounding a central 
cavity; the ramuli jointed, single tubed. Fructification two fold, on 
distinct plants: 1, ovate capsules (ceramidia) furnished with a ter- 
minal pore, and containing a tuft of pear-shaped spores; 2, lanceolate 
pods (stichidia) containing tetraspores ranged in transverse bands. 
Dasya (4g.),—from Saovs, hairy. 
Dasya coccinea ; stems elongate, robust, rough with hair-like fibres, disti- 
chously branched ; branches bi-tri-pinnate ; pinnule multifid, single- 
tubed, their articulations as long as broad. 
Dasya coccinea, 4g. Spec. Alg. vol. ii. p.119. Harv. in Hook. Br. Fl. vol. ii. 
p- 335. Wyatt, Alg. Damn. No. 41. Harv. in Mack. Fl. Hib. part 3. 
p. 209. Harv. Man. p.97. Endl. 3rd Suppl. p. 44. 
ASPEROCAULON coccineum, Grev. Fl. Ed. p. 309. 
ELLIsIvs coccineus, Gray, Br. Pl. vol. i. p. 334. 
TRICHOTHAMNION coccineum, Kitz. Phyc. Gen. p. 415. 
Hurcuinsta coccinea, 4g. Syn. p.26. Hook. Fl. Scot. part 2. p.89. Ay. 
Syst. p. 147. 
CALLITHAMNION coccineum, Lyngb. Hyd. Dan. p. 124. 
ConFERVA coccinea, Huds. Fl. dng. p.603. With. vol.iv.p. 141. Dillw. 
Conf. t.36. FE. Bot. t. 1055. 
ConFERVA plumosa, lis, Phil. Trans. vol. lvil. p. 425. t. 18. f.c. C. d. D. 
Lightf. Fl. Scot. p. 996. 
Crramium hirsutum, Roth, Cat. Bot. vol. ii. p. 169. t. 4. 
Var. 8. sguarrosa; branches destitute of hair-like fibres, sparingly and often 
irregularly branched ; ramuli squarrose. 
CERAMIUM patens, Grev. Crypt. Scot. t. 261. 
Has. On rocks and Alge near low-water mark ; 8. dredged in deep-water. 
Annual. Summer. Common. 
Grocer. Distr. Atlantic shores of Europe, from Norway to Spain. 
Descr. Root, a conical disc. Stem, six to eight inches long or more, mostly 
undivided, as thick as small cord at the base, gradually attenuated, opake, 
and clothed with short, shaggy hairs, pretty regularly tri-pinnate pinne 
long, spreading, lanceolate closely pinnulated ; the ultimate pinnule forked 
or multifid, or cloven to the base into numerous simple, single-tubed ramuli. 
Articulations visible in the smaller branches only, many tubed, and very 
short, interrupted by transverse bands of small, irregular cells. A trans- 
