396 THELEPHORACE^) 



FAM. IV. THELEPHORACE.E 



Erect and stipitate, cup-shaped, effused, with the upper portion 

 free and reflexed or resupinate. Hymenium inferior or amphigenous, 

 coriaceous, waxy or gelatinous, even to rugulose, ribbed or papillose, 

 the surface glabrous, finely pulverulent or minutely velvety, with 

 projecting setae. Basidia clavate, i-4-spored, normally tetrasporous. 

 Spores usually aseptate, 3-septate in the non-British Heterobasidium 

 chlorascens. The papillae are for the most part accidental, generally 

 arising in the resupinate species from Sp/uzrice, growing on the bark 

 beneath and not existing when the fungus grows on a surface free 

 from Sph&ria. True papillae, however, sometimes occur on the 

 pileate, terrestrial species. Some species are occasionally phosphor- 

 escent, as 1861. In the gelatinous species the aseptate and tetras- 

 porous basidia distinguish them from certain members of Tremellinacea^ 

 where the basidia are longitudinally and cruciately septate, or if the 

 spores are aseptate the basidia are deeply bifurcate and bisporous. 

 Hypomyces rosellus often stains the hymenium of Thelephora, Corticium^ 

 and other genera of Thelephoracecz a bright purple-rose colour. 



Massee has published a Monograph of the Thelephoracea in 

 Jonrn. Linn. Soc. (Bot.) xxv. (1889) and xxvii. (1890). The sequence 

 of the genera adopted here is that of P. A. Saccardo, Syllogc Fungonim, 

 vol. vi., which is a slight modification of the order as given in Fries' s 

 Hymenomyates Europai. Species 1781 1925 



KEY TO THE GENERA. 



Large. 



Erect, funnel-shaped ; hymenium glabrous 80 CRATERELLUS. 



Erect to resupinate ; hymenium rugulose 81 THELEPHORA. 



Effuso-reflexed ; hymenium even, glabrous 83 STEREUM. 



Horizontal, attached by a small base behind 82 CLADODERRIS. 



Resupinate. 



Hymenium smooth-setulose 84 HYMENOCHTETE. 



Hymenium rough-setulose 86 PENIOPHORA. 



Hymenium glabrous 85 CORTICIUM. 



Hymenium pulverulent 87 CONIOPHORA. 



Small, cup-shaped, usually single 89 CYPHELLA. 



Minute, cup-shaped, crowded 90 SOLENIA. 



Parasitic on living leaves and stems 88 EXOBASIDIUM. 



