NEW ALG^ FROM CEYLOn! 143 



larger, so as to make it impossible to refer it to tliat species. Within 

 what limits it may vary it is impossible to say, as there is only a single, 

 but magnificent specimen. The appearance of the hymenium is very 

 much that of jP. annosus. 



429. P. (Placoderniei) scopulosus^ n. s. ; durus suberosus; pileosub- 

 flabelliformi vertice affixo albido glabro zonato rugoso ; hymenio cof- 

 feato ; poris punctiformibus, acie obtusa. 



Hab. On dead wood, Sikkim; Daijeeling. (Dr. Hooker.) 



m 



Pileus 5 inches across, 3 inches long, but often larger from con- 

 fluence, hard, woody, dirty white, repeatedly zoned, more or less rugged, 

 smooth, almost black at the very base; substance dark wood-coloured, 

 or umber ; edge rather acute, very slightly lobed ; hymenium concave. 



coffee-coloured. Pores minute, y^ of an inch across, punctiform; 



edge obtuse, entire. 



Allied to P, Falenzuelianus, Mont., but with a very different pileus, 

 430. P. (Vlaeodermei) semitost us ^ n, s, -y suberosus, pileo dimidiate 



tenui lato, margine lobato, opaco subglabro, antice ligneo-palhdo pos- 



tice fusco-tincto sulcato zonato, hymenio pallido, poris mijiutis stratosis 



punctiformibus, 



Hae. On deal wood. Khasia Mountains. (T>i\ Hooker.) 

 Perennial, imbricated, hard and corky, slightly flexible. Pileus a foot 

 across, 4 inches or more long, opake, scarcely subtomentose, sulcato- 

 zonate, inclined to divide at the zones in front, pale wood-coloured, 

 stained behind with brown. Substance pale. Hymenium wood-coloured, 

 bordered all round and showing marks of several seasons. Pores short, 

 punctiform, y^ of an inch across, truly stratose. 



Resembling Folyporus tosins, but in that species the pores are very 

 much larger. It belongs to the same group with P.fraxineuSy etc. 



{To be continued.) 



of three new Alg^e from tlie Shores of 



W 



(With two Plates, Tab. V., VI 



Among the marine Jlg<^y perhaps none are more curious and few 



beautiful 



Jlanowia^ Ilalopjilegm^ 



