72 



Transactions British MycologicaJ Society. 



Under P. glebulosa Bourdot and Galzin distinguish a 

 number of forms, differing in details of spores and cystidia, 

 which they found to be remarkably 

 constant, and designate as " especes 

 jordaniennes." To give them bino- 

 minal names which may subsequently 

 be taken up as the equivalent of other 

 specific names, however, as Bourdot 

 and Galzin have done, is to introduce 

 unnecessary difficulties in the practical 

 determination of species. P. glebulosa 

 in the aggregate is very distinct in its 

 peculiar type of cystidium combined 

 with its narrow, C}lindrical, more or 

 less curved spores. The differences 

 between the various sub-species or 

 micro-species of Bourdot and Galzin 

 are not at all of the same rank as the 

 differences between P. glebulosa and 

 any other usual species of Peniophora. 

 The present form is distinguished 

 from the t\'pe by its more acute, or 

 subulate cystidia, and b\' not showing 

 the characteristic cracking when dry 

 from which the type species takes its 

 name. 



Peniophora glebulosa 

 Bres. sub sp. suhulata 



Bourd. & Galz. 

 a, Spores; b, 2 Cys- 

 tidia; c, Basal hypha 

 X 550. 



Peniphora pallidula Bres., byssoidea (Pers.) von Hoehn. 

 et Litsch. (including the thin whitish form which 

 has been distinguished as P. tomentella Bres.), 

 sanguinea (Ft.) Bres., cremea Bres., velutina (DC.) 

 Cooke, setigera (Fr.) Bres., hydnoides Cooke et 

 Mass., gigantea (Fr.) Mass., incarnata (Pers.) 

 Cooke, cinerea (Fr.) Cooke, querci^a (Pers.) Cooke. 



Hypochnus juscus (Pers.) Karst. 



Coniophora puteana Fr., arida Fr. 



CoNiOPHORELLA, Karst. Finlands Basidsv. p. 438. 



This genus differs from Coniophora only in the posses- 

 sion of long, cylindrical cystidia. Burt in his recent 

 monograph includes it in Coniophora. 



C. olivacea (Fr.) Karst, loc. cit. p. 438. 



