482 MuRRiLL : Polvporaceae of North Amekjca 



Hymenophore large, annual, stipitate^ compound, intricately 

 branched or lobed, humus-loving or epixylous, rarely terrestrial, 

 usually found at the base of a tree-trunk ; surface smooth, pallid 

 to gray or brown ; context white, fleshy or fleshy-tough, rigid and 

 fragile when dry; tubes large, irregular, thin-walled, becoming 

 friable or laclniate with age; spores hyaline, smooth,, rarely ver- 

 rucosa 



Species : G. poripes (Fr.) Murr., G. Sitmstinei Murr., G, fron- 

 dosa (Dicks.) S. F. Gray, G. raviosissuua (Scop.) Murr., G. Berkc- 

 leyi (Fr.) Murr., G. fractipcs (B. & C.) Murr. [See Bull. Torrey 



Club 31 : 333-338. 1904]. 



18. SCUTIGER Paul. Icon. Champ. //. j/. / /-j. 1793 



Type: Sciitigcr tuberostis Yd.wX, 

 Albatrdlus S. F. Gray Nat. Arr. Brit. PI. i : 645. 1821. Type: 

 Boletus albidits Pers. 



Caloporus Quel. Ench. Fung. 164. 1886. Type: Boletus sub- 

 squainosus L. 



Hymenophore simple, terrestrial annual, mesopous, usually 

 bright-colored: surface anoderm, variously decorated; context, 

 white, rarely colored, fleshy to tough, rigid and fragile when dry ; 



hymenium porose, white or colored, tubes thin-walled ; spores 

 smooth, hyaline. 



Species: S. Ellisii {V>tx\^,") Murr., 5. retipes (Underw.) Murr., 

 S. decurrens (Underw.) Murr., S. cryptopus (Ell. & Barth.) Murr., 

 5. laeticolor Murr., 5. cacndcoporus (Peck) Murr., S. holocyane^is 

 (Atk.) Murr., S. radicatns (Schw.) Murr., 5. siibradicatus Murr., 

 S. grisetis (Peck) Murr., S. persicinus (B. & C.) [Murr., 5. Whiteae 

 Murr. [See Bull. Torrey Club 30 ; 425-432. 1903]. 



y 



19. PORODISCUS Murr. Bull. Torrey Club 30: 432. 1903 



Type ; Peziza pcndula Schw. 

 Enslinia Fr. Summ. Veg. Scand. 399. 1849. (Not Enslinia 



Rchb. 1S27.) Type: Sphaeria poaila Schw. 



Hymenophore small, annual, tough, epixylous, erumpent from 

 the lenticels of dead branches ; stipe attached to the vertex of the 

 pileus, usually curved at maturity ; context white, fibrous, tubes 

 cylindrical, short, one-layered, mouths constricted ; spores globose, 



smooth, hyaline. 



30: 432-434- 



pemluhts (Schw.) ]\Iurr. [S 



