116 SYNOPSIS OF BRITISH BEAWBEDS. 



Bessile warts (m scattered over both Burfacee of the 



frond, I i 

 Sphserococcus Norvegicus, Ag. Oncotyluf [ l'u- 



cua Norvegicus, Gunn. V. Devoniensis, Or 

 Iloh. On rocks, near low-water mark. Annual? 8 



March. Rather van 1 . 

 Ckondrus Norvegi&us, if it be identical with the northern 

 plant described by Gunner, Lb singularly unfortunate In its 

 specific name, as it is much more common in counl 

 the south of Norway than in thai country. Even in Eng- 

 land it is very much more abundant on the south coast, 

 and occurs still more frequently on the shores of France 

 and Spain, and in the Mediterranean. Though with a gene- 

 ral resemblance to C. crispus, there is something in the tone 

 of its colour, the divaricated lacinire, and the rounded axils 

 and apices, that render it easy to be recognized, indepen- 

 dently of the difference in fructification. The species most 

 nearly allied to it is C. crenulatus, a native of Portugal, 

 which may probably yet be added to the British list. 



LXIII. PHYLLOPHORA. 



199. rubens (The red, Phyllophord) ; stem very short, expand- 

 ing into a sub-linear or cuneate, simple or forked, rigidly 

 membranaceous, obscurely midribbed frond, which La re- 

 peatedly proliferous from the surface ; tubercles scattered, 

 wrinkled or crested with sinuous folds ; warts concealed un- 

 der leafv processes, Grev. Alg. Brit. v. 135. t. 15. (Atlas, 

 PI. XLV. Fig. 205.) 

 Sphserococcus rubens, Ag. Chondrus rubens, Lyngh. Delesse- 

 ria rubens, Lamour. Fucus rubens, Linn. F. prolifer, 

 Ligliif. F. epiphyllus, Fl. Dan. F. crispus, Huds. 

 Hah. On the shelving, rocky sides of deep tide-pools near low- 

 water mark, under the shadow of Laminarics ; also on rocks, 

 stones, and nullipores, beyond tide-marks, from four to i! . 

 fathoms. Perennial. Winter. 

 A common species on all the rocky shores of Northern 

 Europe, growing at the extremity of low-water mark- 

 under the ledges of shelving rocks, in places where it is 

 seldom exposed either to the sun or air. When free from 

 parasites, which is rarely the case, its clear red colour and 

 glossy surface render it a very ornamental plant. More 

 usually it is disfigured by Melobesus and Fltcstra, so as to 

 destroy much of its beauty. It is closely allied to the JP. 

 nervosa of the south of Europe. 



