TRICHOPHYTONEAE 549 



Mycelium brancliing, septate, hyaline, 2-3/a in diameter with pyriform 

 swellings at the septa, with arthrospores; thyrses of aleurospores united into 

 coremia, aleurospores 2-3/;,; chlamydospores rare, arising- by septation at the 

 swellings of the hyphae; closterospores 1- or 2-celled, rough, 15-30 x 6-8/x. 



Colonies on wort agar, round, pinkish, elevated at the center, umbilicate 

 with numerous fine radial folds; coremia form in about a week. On potato, 

 snow white and furry, without folds. On neutral malt extract gelatin, growth 

 as in potato, medium liquefied in 2 weeks. 



Microsporum umbonatum Sabouraud, Ann. Derm. Syphiligr. TV, 8: 173, 

 1907; Maladies du cuir chevelu 3: 171, 172, 1910. 



Sahouraudites (Aleiorodoster) umbonatus Ota & Langeron, Ann. Parasitol. 

 Hum. Comp. 1: 328, 1923. 



Chsferonleurosporia innbonata Grigorakis, Ann. Sci. Nat. Bot. X, 7: 415, 

 1925. 



Microsporum (Closteroaleurosporia) umbonatum Guiart & Grigorakis, Lyon 

 Med. 141 : 377, 1928. 



Producing tinea tonsurans microsporica on two Russian children, recently 

 arrived in France ; also reported from Hungary. Not inoculable to guinea pig. 



No closterospores ; a few compound thyrses of aleurospores ; also mycelial 

 swellings Math short branches bearing spores (aleurospores?) many pectinate 

 and denticulate organs present. 



Colony a central conical umbo with very fine white rays; becoming di- 

 vided into sectors by furrows, giving the appearance of a flower. On potato, 

 after 23 days, producing small white points along a reddish streak. 



Miorosporum Audouini Gruby, C. R. Acad. Sci. 17: 301-303, 1843. 



Trichoplujton decalvans Malmsten, Arch. Anat. Physiol. Wiss. Med. 1848: 

 1-19, 1848. 



Trichomyces decalvans Malmsten, Arch. Anat. Physiol. Wiss. Med. 1848: 

 1-19, 1848. 



Sporotrichum (Microsporum) Audouini Saccardo, Syll. Fung. 4: 101, 1886. 



Triclioph.ijton microsporum Sabouraud, Ann. Derm. Syphiligr. II, 3: 1061- 

 1087, 2 pis., 1892. 



Martcnsella microspora Vuillemin, Bull. Soc. Myc. France 11: 97 [foot- 

 note], 1895. 



Sabouraudites Audouini Ota & Langeron, Ann. Parasitol. Hum. Comp. 1: 

 327, 1923. 



Closteroaleurosporia Audouini Grigorakis, Ann. Sci. Nat. Bot. X, 7: 415, 

 1925. 



Microsporum (Closteroaleurosporia) Audouini Guiart & Grigorakis, Lyon 

 Med. 141:377, 1928. 



Producing prepubertal tinea torsurans microsporica and once reported 

 from a case of tinea unguium (Breseiani 1925). Inoculable spontaneously or 

 by infected hairs into guinea pig, not by cultures. Once isolated from a dog, 

 but not the common species on that host. Endemic in England, France, 

 Switzerland, Northern Italy to Rome, and Spain with epidemics occasional in 



