6 Transactions. 



coralloides give a better idea of the ramification of the species 

 than any of those of P. jrondosus.'' (Berk.) 



Polyporus lactus, Cooke, Grev., xii, p. 16 ; Sacc, Svll. vi, 

 no. 5047 ; Cooke, Austr. Fung., p. 119. 



Imbricated, much divided, rather thin, tough, tawny-orange 

 or rusty above ; pilei dimidiate, coalescing, entire, surface 

 broken up into adpressed scaly zones, converging behind into a 

 narrowed point of attachment, margin acute, sometimes tinged 

 crimson or purple, 7-15 cm. broad ; pores large, irregular in 

 form, dissepiments thin, pallid ; flesh thin, fibrous, orange-rusty. 



On decaying trunks. Northern Island, New Zealand. Vic- 

 toria. 



Closely allied to the European Polyforus giganteus, differing 

 in the bright colour of the pileus and flesh, and in the larger 

 pores. 



III. Pileus sessile, attached hy a broad base. 



Polyporus plebius, Berk., Fl. N.Z., ii, p. 179 ; Hdbk. N.Z. Flora, 

 p. 608 ; Cooke, Austr. Fung., p. 126 ; Sacc, Syll. vi, 

 no. 5247. 



Pallid or pale- wood colour, imbricated, sessile, attached by a 

 broad base, more or less semicircular, 3-8 cm. across, up to 

 1 cm. thick behind, becoming thinner towards the margin, 

 which is sometimes rather thick and blunt, at other thinner and 

 acute, not zoned, minutely pubescent when growing, usually 

 even, sometimes with a groove or more or less rugged ; flesh 

 corky ; hymenium concave ; pores minute, ^-| mm. diameter. 



On dead wood. Norihern Island, New Zealand. Hima- 

 layas, Queensland. Victoria, Cuba. 



The varieties indicated by Berkeley, depending on the acute 

 or obtuse margin of the pileus, are not constant features, both 

 occurring in the same group of specimens. 



" In the New Zealand form the older parts are inclined to 

 assume a spuriously laccate appearance." (Berk.) 



Polyporus scruposus, Fries, Epicr., p. 473 ; Fl. N.Z., ii, p. 178 ; 

 Hdbk. N.Z. Flora, p. 608 ; Sacc, Syll. vi, no. 5130 ; Cooke, 

 Austr. Fung., p. 122. 



Pileus sessile, attached by a broad base, semicircular or 

 sometimes almost triquetrous, 1 cm. or more thick at the base 

 and becoming thinner towards the acute margin ; surface with 

 raised concentric zones, rough Avith raised points as if minutely 

 corrugated, brown, margin paler ; flesh rather thick, orange - 

 brown ; tubes 2-5 mm. long ; pores very minute, rounded, 

 umber, often with a tinge of purple. 



