638 HYDNTJM 



common, fusiform stem, 12mm. and more long; margin at first be- 

 coming white, then concolorous, acute. Spines whitish cinereous, or lead 

 colour, then date brown, short, slender, very crowded. Flesh becoming 

 fuscous, coriaceous, thin, pliant. Rare. 



H.fusco-atrum Fr. = Acia fusco-atra (Fr.) Pat. 



H. membranaceum Fr. = Acia membranacea (Fr. non Bull.) Bourd. & 



Galz. 



H. membranaceum Bull. = Radulum molare Fr. 

 H. Weinmannii Fr. = Acia fusco-atra (Fr.) Pat. sec. Bres. 

 H. crinale Fr. = Caldesiella crinalis (Fr.) Bourd. & Galz. 

 H. ferruginosum Fr. = Caldesiella crinalis (Fr.) Bourd. & Galz. 

 H. variecolor Fr. = var. of Sistotrema sulphureum Quel. sec. Bourd. 



& Galz. 



H. aureum Fr. = Odontia aurea (Fr.) Quel. 



H. denticulatum (Pers.) Fr. = Acia denticulata (Pers.) Bourd. & Galz. 

 H. alutaceum Fr. = Odontia arguta (Fr.) Quel. var. alutacea (Fr.) 



Bourd. & Galz. 



H. sulphureum Schwein. = Odontia sulphur ea (Schwein.) Rea. 

 H. sordidum Weinm. = Merulius pinastri (Fr.) Burt. 

 H. limonicolor B. & Br. = Odontia limonicolor (B. & Br.) Quel. 

 H, pinastri Fr. = Merulius pinastri (Fr.) Burt. 

 H. spathulatum (Schwein.) Fr. = Odontia spathulata (Schwein.) Rea. 

 H. multiforme B. & Br. = Odontia multiformis (B. & Br.) Rea. 

 H. anomalum B. & Br. = Odontia anomala (B. & Br.) Rea. 

 H. melleum B. & Br. = Odontia mellea (B. & Br.) Rea. 

 H. viride (A. & S.) Fr. = Caldesiella viridis (A. & S.) Pat. 

 H. udum Fr. = Acia uda (Fr.) Bourd. & Galz. 

 H. Hollii (Schmidt) Fr. = Odontia Hoffli (Schmidt) Rea. 

 H. bicolor (A. & S.) Fr. = Odontia bicolor (A. & S.) Bres. 

 H. nodulosum Fr. = Acia stenodon (Pers.) Bourd. & Galz. var. nodu- 



losa (Fr.) Bourd. & Galz. 



H. niveum (Pers.) Fr. = Grandinia farinacea (Pers.) Bourd. & Galz. 

 H. farinaceum (Pers.) Fr. = Grandinia farinacea (Pers.) Bourd. & 



Galz. 



H. argutum Fr. = Odontia arguta (Fr.) Quel. . 

 H. stipatum Fr. = Odontia stipata (Fr.) Quel. 

 H. subtile Fr. - Odontia bicolor (A. & S.) Bres. 

 H. Stevensonii B. & Br. = Odontia Stevensonii (B. & Br.) Rea. 

 H. plumosum Duby = Odontia plumosa (Duby) Rea. 



