Ser. RuoposrPerMp®. Fam. Delesseriex. 
Puats~ XLIV. 
PLOCAMIUM COCCINEUM, Lyngd. 
Gun. Cuar. Root fibrous. Mrond pinky-red, linear, compressed or flat, 
ribless, or faintly nerved, cellular, distichously much branched ; the 
ramuli alternate, or secund, acute. Frwctification of two kinds on 
distinct individuals ; 1, spherical tubercles (coccidia) sessile or stalked, 
marginal or axillary, containing a globular mass of angular spores ; 
2, lateral or axillary, simple or branched pods (stichidia) containing a 
double or single row of transversely parted, oblong ¢etraspores. 
Procamium (Lamour. ref.),—from mr0xapos, braided hair. 
PLocamium coccinewm; frond narrow, cartilaginous, plano-compressed ; 
branches irregularly alternate, patent ; ramuli subulate, secund, three 
or four consecutively, pectinate on their imer edges ; tubercles lateral, 
sessile ; stichidia scattered, lanceolate, simple or branched. 
PLOcCAMIUM coccineum, Lyngb. Hyd. Dan. p.39.+.9. Grev. Alg. Brit. p. 98. 
t.xii. Hook. Br. Fl. vol. ii. p. 293. Harv. in Mack. Fl. Hib. part 3. p. 195. 
Wyatt, Alg. Danm. no. 20. Harv. Man. p. 65. Ag. Alg. Medit. p. 155. 
Endl. 3rd Suppl. p. 52. Kiitz. Phyc. Gen. p. 449. t. 64. Mont. Pl. Cel. 
Canar. p.152. Hook. fil. Fl. Antarct. vol.i. p. 186. 
Piocamium vulgare, Lamour. Ess. p.50. Gail. Dict. Se. Nat. vol. hii. p. 368. 
Procamium Lyngbyanum, Kzitz.l.c. p. 450. 
Piocamium Binderianum, Kzitz. J. c. p. 450. 
DELESSERIA coccinea, 4g. Syn. p.xiv. Hook. Fl. Scot. part 2. p.101. Grev. 
Fl. Edin. p. 294. 
DetessEria Plocamium, 4g. Sp. Aly. vol. i. p. 180. Syst. p. 250. Mart. Fl. 
Brazil. p. 42. 
Crramium Plocamium, Roth. Fl. Germ. vol.iv. p.458. Cat. Bot. vol.ii. p.161, 
and vol. ii. p. 107. 
Fucus coccineus, Huds. Fl. Ang. p.586. Linn. Trans. vol. ii. p.187. Stack. 
Ner. Brit. p.106. Turn. Syn. vol. ii. p. 291. Hist. t. 59. #. Bot. t. 1242. 
Fucus Plocamium, Gm. Hist. p. 153.t.16.f.1. Lightf. Fl. Scot. vol. ii. p. 957. 
Esper. Ic. vol.i. p. 18. t. 2. 
8, uncinata; small, slender, very flexuous, entangled and regularly 
branched ; ramuli patent or frequently hooked back. 
Piocamivm fenestratum, Kitz. Phyc. Gen. p. 450. 
Has. On submarine rocks and the larger Alge, generally growing beyond 
the usual tide-level. Perennial. Summer and Autumn. Common 
on the British shores. 
Geogr Distr. Abundant in the northern and southern temperate zones. Brazil, 
Martius. Cape Horn, Dr. Hooker. Auckland Island; New Zealand ; 
Tasmania. Cape of Good Hope. 
K 2 
