548 MEDICAL MYCOLOGY 



{Tricliophyton gypscum var. asteroid es) or its var. radioJatum (T. radiolatum) . 

 Polymorphism of two aspects : either the inner half of the colony spherical, 

 warty or radially fnrrowed, su<i'fi:esting' a chrysanthemum, surface moist, shin- 

 ing, yellowish brown or citron yellow, or surface velvety white, reverse yel- 

 lowish. On 3% peptone agar, growth weaker, color brighter, colony folded 

 or knotted as in the first type. 



Microspomm orientale Carol. Urol. Cutan. Kev. 32: 22, 23, Fig. 8, 1928. 



Microsporum ferrugineum var. Kurotchkin & Chung, Nat. Med. Jour. 

 China 16: 174-176, Figs. 3, 5, 1930. 



Producing tinea capitis on a Japanese boy in Holland. 



Racquet mycelium and intercalary chlamydospores present : no clostero- 

 spores or aleurospores observed. 



Colonies, downy, divided by 4 radial folds, later by 8 folds, deep yellowish 

 brown, almost red, 4-5 cm. in diameter; no pleomorphism. On Sabouraud 

 conservation agar, colony grayish. 



EUMICROSPORUM 



Eumicrosporum Sabouraud, Maladies du cuir chevelu 3: 1910. 



Closterospores rare, slender and abortive, growth slow, pleomorphism 

 absent or very rare ; producing tinea capitis microsporica before puberty with- 

 out inflammation, not attacking domestic animals, not inoculable, or only with 

 very great difficulty inoculable, into the guinea pig. 



Microsporum iris Pasini, Giorn. Ital. Mai. Ven. Pelle 52: 613-636, Pis. 1-5 

 his, 1911. 



Sabouraudites {Aleuramma) iris Ota & Langeron, Ann. Parasitol. Hum. 

 Comp. 1: 329, 1923. 



Infecting epidermis and hair follicles. Milan and Como, Northern Italy. 

 Inoculable into guinea pigs. 



Aleurospores about 3/a in diameter, or 3-4 x 2-3/a; chlamydospores and 

 denticulate organs present ; closterospores 1-celled. 



At 26° C, a small white downy tuft, 2-3 mm. in diameter, spreading to 

 a downy white disc with a brick red iris or cockscomb, with 8-12 radial folds, 

 attaining a diameter of 4-5 cm. in 25 days. On Sabouraud glucose agar, the 

 brick red color less developed and the iris color appearing more slowly. On 

 mannite agar, growth slower but otherwise similar. On broth agar, with or 

 without glycerol, milky white finally with a slight reddish pigment. On po- 

 tato, grayish white becoming intense reddish brown. Pleomorphism in one 

 month. 



Var. Craikii Dodge, n. nom. 



Verticellium depauperatum Bruhns & Alexander in Jadassohn, Handbuch 

 Haut- Geschlechtskrankh. 11: 129, 1928. 



Microsporum sp. Craik, Brit. Med. Jour. 1: 672, 673, 1921. 



Producing ringworm of the scalp, face, and neck of a thirteen-year-old boy, 

 England. 



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