HOTSON. — CULTURE STUDIES OF FUNGI. 293 



he takes exception to tlie generic name on the ground, as will he seen 

 later, that it does not correspond with tlu> description of the genus by 

 Preuss. 



Lindau ('07) apparently is of tiie opinion that these two forms are 

 the same and he creates a new genus, Eidaniia, for their reception 

 under the name E. acrcmonioidcs (Harz). 



The conidial form of Mdanospora cervicula resembles quite closely 

 Harzia acrcmonioides in luning its conidia on secondary heads and in 

 producing Acremoniella-like chlamydospores, but differs in possessing 

 bulbils and melanosporous perithecia. It is quite possible, however, 

 that the two are identical. It is possible also that the so-called 

 "Harzia type" of fructification, as seen in M. cervicula and the 

 " Aspergillus-like" type as seen in P. aspergilliformis, are modifica- 

 tions of one and the same mode of reproduction: since on several 

 occasions the writer has found in connection with the conidial fructifi- 

 cation of M. cervicula instances in which secondary heads seemed 

 to be lacking, but, owing to the fact that there was only a limited 

 amount of material available, this point could not be absolutely 

 determined. The perithecium of this form, however, is clearly 

 of the melanosporous type, and can hardly be the same as the Cerato- 

 stoma described by Bainier. 



The writer has under cultivation the Mycogone ulmaniae Potebnia, 

 ('07) (Chlnmydomyces diffusus Bainier) obtained by Dr. Thaxter 

 from Liberia and kept in cultivation for over fifteen years. In addi- 

 tion to its large two-celled, warty, chlamydospores, this species also 

 produces conidia on "Aspergillus-like" conidiophores similar to 

 those of P. aspcrgUliformis. 



Conidial forms similar to those above mentioned are also described 

 by Moller ('93) in connection with the garden fungi of certain species 

 of ants in the tropics. 



Again, large chlamydospores, somewhat similar to those of Mdano- 

 spora cervicula except that they are divided into two unequal cells, 

 have been described by Berlese ('92) in connection with Sphacroderma 

 bulbilliferum. They differ from those of Mycogone idmaniae, how- 

 ever, in being smooth. 



Papulospora polyspora, n. sp. 



Plate 11, Figures 1-13. 



Hyphae septate, hyaline, scanty, procumbent, 5-7 ij. in diameter 

 (sometimes as much as 9 /z) ; bulbils dark red-brown usually with a 



