486 MuRRiLL : Polypokaceae of North America 



Flaviporellus Splitgerberi (Mont.) 



Polyporns SpUtgcrbai Mont. Ann. Sci. Nat. Bot. 11. l6 : 109. 



1 841. SylL Crypt. 164. 1856. 

 Poly poms sulplmratus Fr. Nov. Symb. 79. 1851. 

 Polyporns rhcicolor B. & C. Jour. Linn. Soc. Bot. 10 : 313. 1868. 



This plant was described from Surinam, Mexico and Cuba 

 successively. It is apparently rare, being known chiefly from 

 type collections at Kew, Paris and Upsala. 



3. Aurantiporellus gen. nov. 



Polyp 



Hymenophore large, annual, epixylous, effused, immarginate 

 or narrowly reflexed ; surface azonatc, soft, anoderm and orange- 

 colored when young, becoming slightly encrusted and darker with 

 age ; context orange-colored, extremely soft and spongy through- 

 out ; tubes orange-colored, very large, thin-w^alled, irregular, 

 lacerate, fragile ; spores smooth, hyaline. 



Aurantiporellus alboluteus (Ell. & Ev.) 



Pomes alboluteus Ell. & Ev. Proc. Acad. Sci. Phila. 1895; 413. 



1895. 



Described from material collected by Crandall on decayed 



trunks of Abies subalpina in Colorado as follow^s : 



'* Effused and laterally connate for several centimeters, about 

 I cm. thick and 5-6 cm. broad, immarginate and entirely resupi- 

 nate or, in some specc. with a very slight, reflexed margin of 

 soft, spongy texture and light orange color within and without. 

 Pores large, 1-2 mm. diam., with a thin, membranaceous, white, 

 toothed margin.'' 



In 1898 (Bull. Torrey Club 25: 513), the authors add the 

 following notes : 



"Additional specimens and notes of this species show that it 

 is a Polyporns and not a Fomes, In the fresh growing state it is 

 very juicy and absorbs moisture to a remarkable degree so that 

 water may be squeezed out of it as from a sponge. Some speci- 

 mens were 3-4 cm. thick. When mature the pores are prolonged 

 on one side so as to resemble the teeth of an Irpex. The spores 

 are oblong, hyaline, 8-12 x 3 /i. Allied to Polyporns leucospougia 

 Cke. & Hark." 



