BICOLORIS. 



hard, with yellow pore mouths. Spores globose, 7-8 mic., light brown 

 color, smooth, punctate. 



This w r as received from C. B. Ussher, Straits Settlement, and 

 named in Letter No. 33. It impressed me as being very curious with 

 its contrast of context colors and its yellow pore mouths. The pores 

 are not stratified, and, strictly speaking, it is probably better classed 

 as Polyporus than Fomes. The hard, woody nature is quite different, 

 however, from any other Polyporus, and suggests only Fomes. 



FOMES SCULPTURATUS. As to its macroscopic features, it 

 is the same as Fomes mirabilis, excepting that the pore mouths are 

 concolorous (not yellow). The spores, however, are quite different. 

 Large, 14 x 20 mic., ovate, brown, with a minutely punctate epispore. 

 The epispore with brown marking is thicker near the base of the 

 spores, and in its spores it approximates the stipitate section Amaur- 

 odermiis. 



We get this plant abundantly from Henri Perrier de la Bathie, 

 Madagascar, and when we received it were impressed with the large, 

 brown spores that ally it to Amaurodermus. There is no other plant 

 that approximates it excepting the preceding. We thought these 

 spores were conidial, and we believe now that Fomes sculpturatus 

 may be a conidial form of Fomes mirabilis. It is curious, however, 

 that among several specimens received at different times from Mad- 

 agascar none have the same spores as the Malay specimen. 



5TH GENERAL DIVISION, FUNALIS. 



SECTION 68. 



Pileus with a thick pad of dense, brown hairs, analagous to section Funalis in 

 Polystictus. 



FOMES PSILA (Fig. 582). Pileus applanate, with thin edge, 

 surface covered with a thick pad of dense brown hairs. Context dark 

 brown (Buckthorn brown). Pores 

 hard, woody, very minute, with con- 

 colorous tissue and mouths, in dis- 

 tinct layers 4 to 5 mm. thick. Setae, 

 none. Spores not found, but surely 

 hyaline. 



This plant is an anomalous 

 Fomes, and were it not for the dis- 

 tinct pore layers would be classed in 

 Trametes by the side of Trametes Fig. 582. 



hydnoides. The first suggestion w r as that it was a lapsus of Trametes 

 hydnoides. It could be made the type of a monotypic genus. No 

 other plant is known with stratified pores and similar pileus covering. 

 But one specimen is known, which was sent to me from Brazil by 

 Rev. Rick. 



233 



