182 MEDICAL MYCOLOGY 



action on dextrin, none on inulin, starch, or mannite. Milk very slowly coagu- 

 lated, on the tenth day, with the evolution of C0_, gas. Curd not digested. 

 Gelatin not liquefied. 



BARGELLINIA 



Bargellmia Borzi, Malpighia 2: 469-476, 1889. 



Hyphae very slender, hyaline, irregularly branched, septa remote ; asei 

 solitary, terminal, spherical, membrane thickened, minutely tuberculate sca- 

 brous, more or less brownish, indehiscent, spores spherical or subspheric, soli- 

 tary, rarely 2 per ascus, wall thin, content oleaginous. 



This genus seems not to have been seen since its original isolation. It was 

 not figured. Some characters suggest that it may be based on a misinterpreta- 

 tion of Hemispora, in which the oil globules have been mistaken for ascospores. 

 Until it is found again and more carefully studied, it should be regarded as 

 doubtful. 



Bargellinia monospora Borzi, ]\Ialpighia 2: 476, 1889. 



Isolated from the external auditory conduit in catarrhal otitis. 



Hyphae subequal, 2-4;* in diameter, with distant septa ; asci more or less 

 distant and indehiscent, 8-12/a. Spores spherical or nearly so, solitary or 2 

 per ascus, smooth, guttulate, 5-7/u, in diameter. 



HEMISPORA 



Hemispora Vuillemin, Bull. Soc. Myc. France 22: 125-130, PI. 7, 1906. 



Trachyiora Saccardo, Syll. Fung. 4: 262-263, 1886 [as subgenus only]. 



8pore7idonema Ciferri & Redaelli, Jour. Trop. Med. Hyg. 37: 167-170, 1934; 

 Redaelli & Ciferri, Atti 1st Bot. R. Univ. Pavia IV, 5: 145-198, 1934 not 

 Desmazieres 1827 nor Oudemans 1885. 



The type species is Hemispora stellata Vuillemin. 



In tissues, yeastlike cells; in cultures, hyphae hyaline, septate, producing 

 chlamydospores and conidia (blastospores?) ; asci in chains without trace of 

 sexuality, containing a single echinulate spore. 



The morphologic interpretation of structures in this genus has long been 

 puzzling. Vuillemin considered the structures here called asci as hemispores 

 or deuteroconidia, representing an intermediate phylogenetic stage between 

 arthrospores and true conidia (limited by Vuillemin to the types produced 

 by phialides). More careful cytologic studies by Moore (1934) have shown 

 that in H. coremiformis the asci are borne in chains at the ends of branches. 

 In the early stage they resemble a chain of arthrospores or conidia on the end 

 of a conidiophore. Then a densely staining structure develops within the 

 cell walls which eventually forms an echinulate spore wall. The ascus wall 

 then degenerates, leaving the aseospore free. The abundant formation of 

 coremia in this species suggests that on equally careful cytologic study, Briosia, 

 a saprophytic genus of the Fungi Imperfecti, might belong here. 



