CONTEXT AND PORES WHITE OR PALE. 



a piece of chalk. It has several names. Berkeley called it Polyporus 

 immaculatus, verecundus (?), and Trametes pura; Hennings, Poly- 

 porus gogolensis (which fortunately does not have to be used) ; and 

 Murrill, Polyporus unguliformis. 



SPECIMENS. Madagascar, Henri Perrier de la Bathie. 

 Compare gogolensis, pura, unguliformis, verecundus. 



POLYPORUS LEUCOMALLUS. This is a tropical species, very close to 

 Polyporus immaculatus in texture and color, being pure white. It is known only 

 from one specimen at Kew, from Cuba, rather thin, \Y 2 cm. in diameter. The sur- 

 face has distinct, appressed.'pale hairs by which it can readily be told from Polyporus 

 immaculatus, with which it has been confused. 



Fig. 638 



Polyporus trabeus 



300 



