metes hydnoides is the only American one, I believe. Trametes pyr- 

 rhocreas of Australia, known only from type at Kew, is close, if not the 

 same as hydnoides. 



POLYSTICTUS RIGIDUS, FROM E. CHEEL, NEW SOUTH 

 WALES (Fig. 867). Pileus erect, spathulate, flabelliform (incurved 

 and cup shape in type). Surface scabrous, hirsute, finely zoned. 

 Context white. Stipe short (1 cm.), distinct from pileus. Pore 

 surface smooth, pale. Pores very minute, hardly visible to the eye. 

 Spores not found. 



Polystictus embraces mostly flexible plants. This rigid, stiff 

 species has no analogue in the other species with white context. The 

 section (Petaloides 23) Microporus with brown context is similar as 

 to texture. We would enter it in Section 22, though quite different 

 from all others in this section. The pores are so minute that to the 

 eye the plant appears to be a Stereum. The general resemblance to 

 Stereum hydrophorum is close. 



Fig. 867. 



