SPOROTRICHEAE 789 



Aleurisma dermatitidis (Agostini) Dodge, n. comb. 



Glenosporella dermatitidis Agostini, Atti 1st. Bot. R. Univ. Pavia, IV, 2: 

 93-101, 4 figs., 1930 [1931]. 



[Case of Mantarro?* Giorn. Ital. Derm. Sifilol. 72: 131-11:3, 1931.] 

 Heads sparse, suborbieular, minute or confluent in larger colonies, irregu- 

 larly subrotund and raised above the substrate, white without, yellow within. 

 Hyphae hyaline, densely interwoven, simple or irregularly branched, continu- 

 ous or septate, variously granulose 2-7ja in diameter. Aleurospores hyaline, 

 spherical or subrotund, thick-walled 7-10 x 4-7/x, clinging to the branches of 

 mycelium, acrogenous, solitary or irregularly disposed, sessile or on aleuro- 

 phores of varying length. Arthrospores rounded or oblong or irregular, 

 4-15ju. in diameter, intercalary, catenulate. 



Aleurisma benig^a (Magalhaes) Vuillemin, Champ. Paras. Mycoses 

 Homme 114, 1931. 



Aleurophora henigna Magalhaes, Brasil Med. 30: 369, 370, 1916. 



Isolated from circular patches of scaling with slight pruritus, infection 

 scarcely noted by patient until attention was called to it by physician. Fungus 

 most abundant in the stratum disjunctum of the epidermis. 



Mycelium curved, long or short, dichotomous, 2-3^ in diameter. Reproduc- 

 tion mainly by arthrospores (thallospores), 2-3//, in diameter, or by aleurospores. 

 Yeast cells spherical to ovoid, 2-5fx in diameter. 



Cultures mentioned but not described at all in this place. Genus not 

 described. No figures. 



Aleurisma lug-dunense Vuillemin apud Massia & Grigorakis, C. R. Soc. 

 Biol. 91: 1381-1383, 1924. 



Scales of erythremato-squamous lesion with peripheral vesicopustules on 

 internal face of knee where skin was kept moist by prosthetic apparatus. 



Mycelium yellow, with some racquet cells, aleurospores as in Sporotrichum 

 3-4 X 2-2. 5/a; chlamydospores 5-6yu,. Aleurospores germinate with 1-3 germ 

 tubes, chlamydospores Avith 1-4. All cells uninucleate except rapidly growing 

 terminal cells, which may have as many as four nuclei. 



Colonies cafe-au-lait in color, smooth becoming powdery white. 



Baudet (1930) studied a lesion on a dromedary, in Avhicli the organism 

 was identified by Vuillemin as this species along with Grubyella Langeroni. 

 Baudet describes the cultural characters of his organism as follows: Aleuro- 

 spores 1-2.5 X 0.8-1.5/1, ovoid, borne singly on short branches as in Monosporium. 

 He failed to find the chains of aleurospores reported by IMassia. The chlamydo- 

 spores were mistaken for racquet cells. Produced a diffusing pigment on glu- 

 cose media, rose, then wine red, which disappeared in subcultures, apparently 

 developed on acid media pH 4.4-4.6, while it was greenish yellow on more 

 alkaline media. Reverse honey yellow (melleus of Saccardo Chromotaxia) . 



There seems to be little to differentiate the following species from this, but 

 both the original descriptions are too poor for certain identification. 



