SPORES HYALINE. 



SECTION 95. CONTEXT BROWN. SETAE NONE. 



POLYPORUS GOETHARTII.-Pileus dimidiate, concolorous 

 large specimens 15 x 9 x 2 cm. Surface brown, glabrous marked with 

 concentric, raised zones. Context dark brown (antique brown) hard 

 Pores minute, 4-6 mm. long, concolorous. Setae, none. Spores un- 

 known, doubtless white. 



At Leiden only this species is found, having been recently named 

 from Java specimens. It is marked with raised zones, which are rare 

 in Polyporus and common in Fomes. What causes these in the plant 

 we do not know, but in Fomes these zones are formed by the annual 

 layers overgrowing and overlapping. As Polyporus Goethartii is only 

 known from one collection, this character may be unusual in this 

 specimen. 



Fig. 681. 



Polyporus melleofulvus. 



POLYPORUS MELLEOFULVUS (Fig. 681). Pileus dimidiate, 

 pale brown (clay color). Surface subtomentose, soft, rough, concol- 

 ous, no distinct crust. Context dry, hard. Pores medium, 3 to mm., 

 round or irregular, with thin walls. Spores (not found) teste Romell, 

 2-3 x 5-7, hyaline. 



This is known only from type collections. There is a cotype at 

 Berlin. Romell put it in the "genus" Chaetoporus, which he aban- 

 doned in recent papers, but the plant has no "chaete." There are 

 projecting hyphae which are sometimes encrusted, but nothing sug- 

 gesting setae. 



POLYPORUS SUBSTUPPEUS. Pileus thin, applanate, with brown, rough 

 surface. Context thin, soft, 3 mm. (now) brown. Pores small, round, 2-3 mm. 

 long, dark brown (now), almost black. Setae, none. Spores globose, hyaline, 4 mic. 

 Known only from types at Kew from Brazil, which are none too good. The Australian 

 determinations are evidently different. We are not sure but that Polyporus sub- 



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