IIYDNEI. 263 



On fallen branches. Not common. Berwick, Dr. Johnston. 

 Linlithgowshire, Dr. Bauchop. 



29. RADULUM, Fr. 



Tubercles rude, irregular, commonly elongated and cylin- 

 drical, obtuse, waxy. 



1. R. orbieulare, Fr. ; in the autumn effused, orbicular, 

 confluent, white, then yellowish ; circumference byssoid ; tu- 

 bercles elongated, irregular, roundish, scattered or fasciculate ; 

 in the spring waxy, smooth, flesh-coloured ; tubercles shorter 

 and broader. — Grev. t. 278. 



On dead branches of birch. Not uncommon in some dis- 

 tricts. 



2. R. quercinum, Fr. ; roundish, then widely confluent, 

 innate, crustaceous, becoming smooth, white, then pallid ; tu- 

 bercles roundish, elongated, stout, obtuse, scattered or fasci- 

 culate, irregular, floccoso-villous at the tips. — Raii Syn. t. 1. 



On branches of oak. Rare. Chester, A. B. Hill. East 

 Bergholt, etc. Hydnum Barba-Jovis, Sow., belongs to this 

 species. 



30. PHLEBIA, Fr. 



Hymenium soft and waxy (subgelatinous), spread over per- 

 sistent crest-like wrinkles or veins, whose edge is entire. 



1 . P. merismoides, Fr. ; effused, flesh-coloured, then livid, 

 white and villous beneath ; circumference orange, strigose ; 

 wrinkles simple, straight, crowded. — Grev. t. 280; Huss. ii. 

 /. 44. 



On old stumps and decayed branches, often running over 

 mosses. Rare. Thin, almost tremclloid when fresh. 



2. P. radiata, Fr. ; suborbicular, equal, smooth on either 



