Ser. RuoposPERME. Fam. Rhodomelee. 
Puate LXXXV. 
RYTIPHLAA PINASTROIDES, (4%, 
Gey. Cuar. Frond, filiform or compressed, pinnate, transversely striate, 
reticulated; the axis articulated, composed of a circle of large, tubular, 
elongated cells (siphons) surrounding a central cell; the periphery of 
several rows of minute, irregular, coloured cellules. Lruetification of 
two kinds, on distinct individuals; 1, ovate capsules (ceramidia) con- 
taining a tuft of pear-shaped spores; 2, ¢e¢raspores, contained in 
minute lanceolate receptacles (stichidia), ina double row. RytipHuaa 
(Ag.)—from furis, a wrinkle, and pros, the bark; because the surface 
is transversely wrinkled or striate. 
RytieH.aa pinastroides ; frond terete, irregularly branched ; lesser branches 
pectinato-pinnate ; the pinne secund, with their apices more or less 
hooked inwards. 
RytrpHuL#a pinastroides, dg. Syn. p. 25. J. Ag. Alg. Medit. p.145. Endl. 
3rd Suppl. p. 48. 
RuopomeE.a pinastroides, 4g. Sp. dig. 1. p. 381. Ag. Syst. p. 200. Spreng 
Syst. Veg. 4. p. 343. Grev. Alg. Brit. p. 104. t. 13. Hook. Br. Fl. 
vol. ii. p. 294. Wyatt, Alg. Danm. no. 112. Harv. Man. p. 68. 
Hauopriruys pinastroides, Kitz. Phyc. Gen. p. 433. t. 52. f. 2. 
Gicartina pinastroides, Lyngh. Hyd. Dan. p. 45. 
CERAMIUM incurvum, Dec. Fl. Fran. vol. ii. p. 33. 
Fucus pinastroides, Gm. Hist. Fuc. p. 127. t. 11. f. 1. Good. and Woodw. 
in Linn. Trans. vol. ii. p. 222. Turn. Syn. vol. ii. p. 346. Turn. Hist. t. 11. 
Stack. Ner. Brit. p. 74. t. 13. Eng. Bot. t. 1042. 
Fucus incurvus, Huds. Fl. Ang. p. 590. With. vol. iv. p. 115. 
Has. On sub-marine rocks, near low-water mark. Perennial. Winter. 
On the shores of the south of England, in several places. Jersey, 
Miss White, and Miss Turner. 
Geogr. Distr. Atlantic shores of France and Spain. Mediterranean Sea. 
* Boeroe Islands,” Lyngbye (very doubtful). New Zealand, Sir J. Banks. 
Ceylon, Sir J. E. Smith. 
Descr. oot an expanded, dise. Fronds tufted, 4-10 inches in height, cylin- 
drical, about as thick as whip-cord below, much and irregularly branched and 
bushy, somewhat fastigiate: the main branches alternate or subdichotomous, 
densely clothed in their lower part with short, subulate, simple, erecto-patent 
ramuh, which occasionally give a shaggy character to the bases of old fronds ; 
and in their upper, set with elongate, patent or recurved, pectinato-pinnate 
branches, whose apices are, especially in young fronds, very generally rolled 
inwards or hooked. These lesser branches are pectinate along their upper side 
with a double set of subulate ramuli, secundly disposed, generally in pairs, at 
short intervals, but occasionally somewhat irregularly inserted; all ver 
erect, with straight or hooked apices, and somewhat narrowed at the base. 
