18 



KEY TO TREMELLALES 



TREMELLACEAE. 



Tremella. 



Phaeotremella. 

 Guepinia. 



TREMELLALES. 



Same characters as the order 



TREMELLACEAE. 



Receptacle foliaceous, brain-like, or tubercu- 

 lar, gelatinous, soft, fertile over the whole 

 surface, very rarely papillose, sometimes with 

 an irregular nucleus formed by mineral con- 

 cretions. Spores white, globose or elliptical. 

 Growing on dead wood, rarely on the ground 



Like Tremella, but spores coloured 

 Receptacle erect, ear-shaped, or spathulate \ 

 substipitate, or sessile, gelatinous, firm. Hy-| 

 menium inferior, smooth, or indistinctly veined. \ 

 Spores white. Growing on the ground, or on 

 rotten wood 



Receptacle cupulate, discoid, foliaceous, or 

 effused, marginate, pendant, sterile on upper 

 surface, gelatinous, soft, pellucid. Hymenium! .-,. 

 inferior, smooth, reticulately veined, or foli- 1 

 aceous, often papillose. Spores white, allantoid. 

 Growing on wood 



Receptacle dimidiate, substipitate, or sessile^ 



gelatinous. Hymenium with fertile spines or - Tremellodon. 



teeth. Spores white. Growing on wood 



Like Odontia, but with subgelatinous teeth, } 

 and longitudinally septate basidia. Spores - 

 white. Growing on dead wood 

 Receptacle effused, incrusting, like Corticium,\ 

 coriaceous, gelatinous, or waxy. Hymenium I 

 smooth. Spores white. Growing on the ground, [ 

 or on wood 



Like Sebacina, but hymenium possessing true) 

 cystidia / 



Like Sebacina, but hymenium possessing) 

 gloeocystidia filled with a coloured juice / 



Receptacle cup-shaped, or resupinate with the 

 margin free, or reflexed, membranaceous, waxy, 

 or coriaceous, soft. Hymenium smooth, rugu- 

 lose, or tubercular. Spores white. Growing on 

 dead branches 



Protodontia. 



Sebacina. 

 (Thelephora and 

 Corticium p.p.) 



Sebacina, subg. 

 Heterochaetella. 

 Sebacina, subg. 

 Bourdotia. 



Eichleriella. 



