4*4 MURRILL : POLYPORACEAE OF NORTH AMERICA 



Beaumont, Earle ; Cuba, Earle, Underwood & Earle 758, ypj, 

 1104a, ij/6, rjip, 1446. 



Microporellus holotephrus (B. & C.) 



Polyporus holotephrus B. & C. Jour. Linn. Soc. Bot. 10 : 315. 1868. 



Described as follows from no. jj2 of Wright's Cuban collec- 

 tions, although Guiana (Leprieur 020) is mentioned as the habitat. 



" Luridus ; pileo tenui coriaceo flabelliformi, e basi attenuata 

 lineato, hie illic vinoso-tincto zonato, zonis alternis subtiliter velu- 

 tinis scabris brunneis ; poris 5-6-gonis brevibus minimis. 



" On dead wood. Pileus 2\ inches broad, 2 inches long, 

 radiato-lineate ; pores ^\-^ inch in diameter. A very curious 

 species." 



This peculiar plant, known only from the original collections, 

 now at Kew, bears a very close resemblance to M. dealbaUis in 

 every respect except color. One could almost believe that a few 

 very young plants of M. dealbatiis had for some cause turned en- 

 tirely black in drying, if the numerous other collections of this 

 species indicated the slightest tendency in that direction. Another 

 difference is the size of pores, those of M. Iwlotephrus being entirely 

 inconspicuous to the unaided eye. 



22. POLYPORUS (Mich.) Paul. Icon. Champ, pi. 13. 1793. 



Type : Polyporus Ulna Paul. 

 Polyponts (Mich.) Adans. Fam. 2: 10. 1763. Not associable 



with a previously published binomial. 

 Polyporellus Karst. Medd. Soc. Faun, et Fl. Fenn. 5: 17. 1879. 



Type : Polyponts brumalis Fr. 

 Lcucoporus Quel. Ench. Fung. 165. 1886. Type: Lcucoporiis 



tubarius Quel. 

 Ccvioporus Quel. Ench. Fung. 167. 1886. Type: Boletus squa- 



mosus Huds. 

 Mclanopus Pat. Hymen. Europ. 137. 1S87. Type: Mclanopus 



squamosus (Huds.) Pat. 



Hymenophore annual, epixylous, small and simple, very rarely 

 large and compound ; stipe central, excentric or lateral, much re- 

 duced at times in a few species, often partly or wholly brown or 

 black ; surface usually smooth, the margin at times ciliate ; con- 

 text white or yellowish, fibrous, tough to corky ; hymenium 

 porose, rarely alveolate ; spores smooth, hyaline. 



