PKXICILLU'M CA.MKMP.KKTI. 



51 



alkaline reaction in gelatin, free from sugar, bul in sugar media producee a in. .re or 

 less persisted acid reaction. Growing and fruiting period, about 2 weeks. Fruits 

 only upon exposed surfaces of the substrata; never produces spores in cavities not 

 broadly open. 



Habitat, Camemberl and other sofl cheese 



'Flic aarne /'. album Epstein, which is also P. epsteini Liiulau, 1 " is 

 inserted in the list of possible synonymy because i bis name is accepted 

 for tlii- mold by Maze |:; iii a recent paper. If Ave base identification 

 upon the cultural charac- 

 ters given for his mold 

 by Epstein, it could not 

 have Ween /'. carru mh, >fi. 

 The characterization, so 

 far as given by Epstein 

 and extracted from his 

 paper by Lindau, might 

 refer to the pure white 

 form (P. candidum) as 

 interpreted by Roger and 

 Maze better than to this 

 species. There is cer- 

 tainly at least a varietal 

 difference (spore color) 

 between P. camemberti 

 and the P. c<nt</i<hiin of 

 Roger and Maze, which 

 is designated a variety of 

 P. camemberti in this 

 paper. 



The change in litmus 

 reaction in this descrip- 

 tion from thai previously 

 published is result of 

 proof that no acidity is 

 produced by this species 



e\cel)t V hell sil' r- ir is Ol'es- ' "'• '''• — PenidUium camemberti Thorn: a, conidiophore show- 



'~\ lug a common type of branching and the production of baslda 



ent. A change from blue :ill ,| conidla, highly magnified; &, a common form showing 



to fed and black to blue much less branching; e, d, f, diagrams of large fructifications 



. (X 80); q, i,j, germinating conidia. (From Bull. 82, Bu 



indicates the production of Animal Industry.) 



of acidity by fermenta- 

 tion of sugar followed by the neutralization of the acid so produced 

 by the alkaline by-products of proteolysis or by a further change 

 iii the acid. Therefore this statement is best omitted from the diag- 

 QOSl ic description. 



