EXIDIA ULOCOLLA. 59 



Exidia glandulosa, Fries, Syst. Myc. ii. p. 224; Cke., 

 Hdbk., p. 349, 



On dead branches of oak, &c. Varying from grey to 

 brown, at length black; often wrinkled above and plicate 

 below, 5-!^ in. across. 



Exidia recisa. Fries, (fig. 8, p. 56.) 



Soft and gelatinous, hymeniuru plane, often wavy, amber- 

 brown, tapering downwards to a narrow, usually excentric 

 point of attachment, scabrous below; spores oblong, 13-20 

 X 5-7 p.. 



Exidia recisa, Fries, Syst. Myc. ii. p. 223 ; Cke., Hdbk., 

 p. 348. 



On dead branches of willow, reaching to 1 inch in 

 diameter. 



Exidia albida. Brefeld. 



Gelatinous, expanded, undulate, white, becoming brownish 

 with age and pruinose with the white spores; spores oblong, 

 curved, 12-14 x 4-6 /*. 



Exidia albida, Brefeld. 



Tremella albida, Cke., Hdbk., p. 346. 



On dead branches. Bursting through cracks in the bark 

 and forming waved, subgyrose, white, semipellucid folds 

 th,t become yellowish or brown with age. Up to 1 inch 

 across. 



ULOCOLLA. Bref. (fig. 7, p. 56.) 



Sporophore convex, pulvinate, gyrose, cerebriform, gela- 

 tinous, rather large ; basidia globose, soon longitudinally 

 or obliquely cruciately partite ; sterigmata, elongated, 

 thick ; spores for a long time continuous, then 1-septate, 

 reniform, each loculus on germination giving origin to a 

 very short promycelium bearing at its apex a crown of 

 straight, rod-like sporidiola. 



Ulocolla, Brefeld, Untersuch. vii. p. 95; Sacc. Syll. vi. 

 p. 777. 



Ulocolla saccharina. Bref. (fig. 7, p. 56.) 

 Tuberculose, effused, thick, gyrose and undulate, fulvous- 

 cinnamon, here and there papillose ; spores reniform, 1012 

 X 5-6 p. ; conidia about equal to the spores. 



