io6 THELEPHORACEAE 



(x) Pileus clavulate with filiform stipe 



Typhula 6: 743 

 (y) Pileus linear or subclavate; stipe short or none 



Pistillaria 6: 752 



Family 62. THELEPHORACEAE 



6 : 513, 9 : 218, 11:115, 14 : 212, 16 : 181, 18 : 160 

 Hymenium inferior or amphigenous, leathery, waxy or membranous, smooth, 

 i. e., without spines, pores, etc., sometimes somewhat ridged, or cracked; spores 

 various. 

 I. Not parasitic on algae 



1. Pileus more or less gelatinous 



a. Pileus effuse 



(i) Spores hyaline Cerocorticium 16: 196 



(2) Spores olivaceous Aldridgea 11: 129 



b. Pileus convex to discoid Discocyphella 16:202 



2. Pileus not gelatinous 



a. Hymenium somewhat ridged or roughened 



(i) Hymenium subcarnose, infundibuliform, costate 



Craterellus 6: 514 

 (2) Hymenium leathery 



(a) Hymenium woody, with radiating ridges, warty-roughened 



Cladoderris 6: 547 



(b) Hymenium similar, but with fan-like ridges 



Beccariella 6: 550 



b. Hymenium smooth, or absent 

 (i) Hymenium present, smooth 



(a) Hymenium without cystidia 

 X. Pileus urn-shaped, stipitate Hypolyssus 6: 521 



y. Pileus typically crateriform to dimidiate 

 (x) Pileus with distinct intermediate stratum 



Stereum 6: 551 

 (y) Pileus homogeneous or nearly so 

 m. Pileus vertical, beautifully convolute, mitriform 



Skepperia 6 : 603 

 n. Pileus not convolute 



(m) Basidia not transeptate Thelephora 6: 521 



(incl. Friesula 6: 685) 

 (n) Basidia transeptate Septobasidium 11: 118 



z. Pileus resupinate, effuse, rarely cupulate 

 (x) Pileus not cupulate 

 m. Hymenium waxy 



(m) Spores large, citriform Michenera 6: 652 

 (n) Spores medium, not citriform 



Corticium 6: 603 



(incl. Kneiffia 6:510) 

 n. Hymenium fleshy, spores minute, colored 



