AUEICULAEIA. 57 



AURICULARIEAE. 



AUEICULAEIA. Bull, (emended), (figs. 1, 2, p. 56.) 



Hymenium inferior, remotely and vaguely costate or 

 plicate, inflated and gelatinous when moist, collapsing when 

 dry. Basidia cylindrical, 3-5 septate, each joint or cell 

 producing a single slender sterigma from its apical region. 

 Spores oblong, curved, producing on germination a branched 

 promycelium, bearing several strongly curved sporidiola. 

 Habit exactly that of Stereum, but fructification entirely 

 distinct. 



Auricularia, Bull., Champ., p. 277 ; Sacc. Syll. vi. p. 762. 



Auricularia mesenterica. Fries, (figs. 1 and 2, p. 56.) 

 Pilei resupinate, reflexed above, velvety, zoned, greyish- 

 brown, margin not lobed ; hymenium brownish-violet, spores 

 oblong, reniform, 18-20 X 7 /x. 



Auricularia mesenterica, Fries, Epicr., p. 555 ; Cke., Hdbk., 

 p. 319. 



On trunks. Often very broadly effused and with numerous 

 partly free imbricated pilei. 



Auricularia lobata. Sommerf. 



Pileus effuso-reflexed, margin lobed, surface velvety, zoned, 

 whitish-brown; hymenium livid fulvescent, spores as in 

 A. mesenterica. 



Auricularia lobata, Sommerfeldt, Mag. Nat. Vidensk., 1827 ; 

 Cke., Hdbk., p. 320. 



On bark of trees. Closely allied to A. mesenteria, from 

 which it is mainly separated by the lobed margin of the 

 jDileus. 



Fig. 12, Bacryomycis s^tillutm ; nat. size ;— Fig. 13, Dacryomyccs chrysocoma, 

 bifurcate basidium and spores ; bigLly mag. ;— Fig. 14, Tremdla mesenterica ; 

 nat. size of a fciuall specimen ;— Fig. 15, Tremella lutescens, bhowing the 

 basidia in various stages of developmeut, the sterigniata vary from two to 

 four; highly mag. ;— Fig. IG, Gutpinia pcziza; uat. size. 



