554 MEDICAL MYCOLOGY 



Achorion Serisei Cazalbou, Bull. Soc. Path. Exot. 6: 300-303, PL 5, 1913. 



Isolated from a case of favus on horse in Madagascar, not reported since 

 the original case. Producing dry erythematous lesions without favic scutula 

 on man. Producing favic scutula on guinea pigs. 



At the root of the hair the filaments form a fringe, suggestive of Micro- 

 sporum, although short filaments are seen at the surface with groups of arthro- 

 spores as in A. Schoenleini. 



Closterospores abundant, 60 x 12/*, with 4-5, rarely 3, septa. 



Colony cafe-au-lait, margin tomentose and whitish, 3-4 mm., grading im- 

 perceptibly into the chalky and granular center, irregular with incomplete 

 radial folds, center irregularly elevated ; reverse golden yellow. Pleomorphism 

 irregular, finally becoming tinted like wine lees instead of white as in other 

 species. 



Bruhns (1928) reports that this species is very close to A. gypseum. 



Achorion violaoeum Bloch Derm. Zeitschr. 18: 815-822, Pis. 10-12, 1911. 



Sahouraudites violaceus Ota & Langeron, Ann. Parasitol. Hum. Comp. 1: 

 828, 1923. 



Achorion (Bodinia) violaceum Guiart & Grigorakis, Lyon Med. 141: 377, 

 1928. 



Bodinia violacea Brumpt, Precis Parasitol. ed. 4, 1297, 1927. 



Lesions typical Trichophyton lesions, superficial or even forming kerion, 

 also with typical scutula; Hany reports one case of favus due to this organism 

 where scutula were not produced. Eare in Switzerland, Germany, Austria, 

 Kussia. Perhaps Trichophyton violaceum Kusunoki (1913) should be referred 

 here although no scutula were reported. Inoculable to man, guinea pig, and 

 rat, producing scutula. 



Closterospores with several cells, and aleurospores on slender mycelium; 

 chlamydospores intercalary, aleurospores and staghorn branching on coarser, 

 irregularly septate mycelium. 



Colonies dark red brown violet, becoming lilac and brown; center much 

 elevated, irregularly verrucose, margin a rosette of compact hyphae, pleomor- 

 phism variable in time of appearance. 



So much variability is reported regarding this organism that it suggests 

 that the different types of lesions may have been produced by two different 

 organisms and that the description of Bloch is a mixture of characters of the 

 two. Several cases have been reported where lesions produced by two differ- 

 ent organisms occurred simultaneously on different portions of the body. If 

 the description of Bloch is correct, this organism shows much more varia- 

 bility than any other in this group so far described. 



Achorion g'allinae (Megnin) Sabouraud, Maladies du cuir chevelu 3: 553- 

 569, 1910. 



Epidermophyton gallinae Megnin, C. R. Soc. Biol. 33: 404-406, 1881; Bull. 

 Soc. Centr. Med. Vet. 44: 183-186, 1890. 



Trichophyton Megnini Blanchard apud Bouchard, Traite Path. Gen. 2: 

 915, 916, 1896 (exel. syn. T. roseum). 



