SECTION SPONGIOSUS. 



obesus, United States, Ellis (also Polyp. Issue, p. n) Montagnei. 



occultus, Europe, Lasch. I judge from the little co-type frustule I have seen 

 (Rabh. Exsic. 617) that it is rufescens. 



platyporus, India, Berkeley. Type very scanty and inadequate but=I think 

 rufescens, form heteroporus. 



proteiporus, Australia, Cooke='rufescens. 



Sahranpurennis, India, Hennings. Not found by me at Berlin, but from 

 description seems to be Schweinitzii. 



scutiger, Europe, Kalchbrenner. Changed by Fries to Kalchbrenneri and 

 based on small specimens of tomentosus. 



sericellus, Europe, Saccardo=rufescens, form heteroporus. 



Sistotrema, an old synonym for Schweinitzii, often used as a juggle. 



spectabilis, United States, Fries=rSchweinitzii. 



spongia, Europe, Fries=Schweinitzii. The only type is at Kew. 



tabulaeformis, United States, Berkeley=Schweinitzii. 



tubulaeformis, United States, Saccardo, misprint for tabulaeformis. 



SECTION PELLOPORUS. 



Context dry, ferruginous, or yellowish brown with deeply colored hyphae. 

 Setae rare. Pores concolorous. Spores colored, pale in most species. Plants 

 growing in the ground and usually concolorous. Rarely epixylous. This sec- 

 tion is practically the same as the section Perennes of Fries, but we do not 

 use the name as it is misleading for the plants are not perennial. 



36. PELLOPORUS POLYPORUS. CONTEXT FLESHY, 



TOUGH, RATHER BRITTLE, MOSTLY MORE 



OBESE THAN THE NEXT SECTION. 



INDICUS (Fig. 461). Pileus rugulose, dark brown, zonate. 

 Flesh 5 mm. thick, pale rhubarb color. Hyphae deep yellow. Stipe 

 mesopodal, subligneous, irregular. Pores small, round, 5-8 mm. long, 

 darker than the context with pale mouths. Spores abundant, globose, 

 5 mic., smooth, deeply colored, mostly guttulate. Known from speci- 

 men sent me by B. S. Cavanagh, Baroda, India. 



CUMINGII. Context thin. Pores minute, 2 mm. long, concol- 

 orous. Stipe slightly spongy. Spores 3~3/4, pale colored. Plant 

 mesopodal. Only known from types at Kew from Philippines (also 

 Mexico?). 



VAIXATUS (Berkeley). Context thick, subligneous, bright 

 color. Surface dull, concolorous. Pores small. Known from two 

 specimens at Kew from India. One seems pleuropodal, the other 

 mesopodal. 



The two following are much smaller than those that precede, but the rigid, 

 brittle flesh more closely allies them than to the next section. 



LUTEO-NITIDUS (Fig. 462). Pileus irregular, mesopodal or 

 pleuropodal. Stipe slightly spongy, often long rooting. Context thin. 

 Pores minute. Very similar but a larger species than the next. Seems 

 frequent in tropical South America. 



162 



