SPORES COLORED. 



and is a true Polyporus. The bright yellow flesh is a marked character 

 of the species. It has been classed as Polystictus, and is the only 

 polypore with colored spores likely to be so classed on account of its 

 thinness. The plant has also been named Polyporus Splitgerberi and 

 Polyporus sulphuratus, neither a very suitable name for it. 



SPECIMENS. Brazil, Anna Brockes, Rev. C. Torrend. 

 Compare hinnuleus, Splitgerberi, sulphuratus. 



POLYPORUS CITREUS has been known since 1860 only from a little type at 

 Kew, from Australia, not much bigger than your thumb nail. It is thin, yellow, and 

 similar to Polyporus rheicolor, but the spores are very pale, with only the slightest 

 tinge of color. 



SECTION 99. CONTEXT BROWN. SETAE NONE. 

 A. Plants very minute. 



POLYPORUS PYGMAEUS. Pileus minute, erumpent from 

 branches, flabelliform. Color brown. Pores large in comparison to 

 size of plant. Spores, teste Murrill, 3>2 x 5, colored, abundant. 



This is a unique little species, and disputes with Polyporus poculus 

 the honor of being the smallest Polyporus known. It is about 2 mm., 

 only, in diameter. Palmer collected it in Mexico and sent it to Ellis, 

 who distributed it as Trametes pusilla. Patouillard evidently received 

 a specimen, for he lists it as "Xanthochrous pusillus, Ellis," Xan- 

 thochrous being a new genus that he had "discovered" with yellow 

 spores. We therefore suppose its spores are colored, though the 

 material being scanty we did not examine them. But one collection 

 is known of this little species, which is at the New York Gardens. 

 It is not recorded whether it has setae or not. The name Polyporus 

 pusillus being preoccupied, my friend McGinty changes it to Poly- 

 porus pygmaeus. 



Compare pusillus. 



B. Pores large. Similar to Hexagona and has been so classed. 



Fig. 690. 



Polyporus decipiens. 



POLYPORUS DECIPIENS (Fig. 690). Pileus sessile, dimidiate, 

 triquetrous, unicolorous, dark brown. Surface brown, hard, tomen- 



355 



