TRICHOPHYTONEAE 495 



Margin with short deiiticulations. E. felinu7ti v. denticulatum. 



Closterospores and spirals not reported on any media. 



Crateriform; bottom of crater furrowed, cream color, margin white; on Sabour- 

 aud conservation agar central crater with subcerebriform irregular 

 furrows, outermost zone ashy, intermediate zone whiter with about 16 

 radial furrows. T. depressum (p. 507). 



Not cultivated on Sabouraud; on potato irregularly furrowed, white colony, 

 yellowish pulverulent at the center, medium blackening; hyphal tips 

 swollen. Achoriov Arloingi (p. .507). 



Colonies sulphur yellow; yellow on malt gelatin; aleurospores 2-3.5At, occasionally 

 chlamydospores present; sycosis. 



Aleurisma GuilUermondi (p. 508). 



Colony white, hemispheric, yellowing and becoming crateriform in 10 days; 



aleurospores 1-2^, chlamydospores abundant; tinea interdigitalis, ecto- 



endothrix in experimental animals. TrichopJiyton chosenicit.ni (p. 508). 



Closterospores present. 



Spirals not reported on any media, lesions often superficial or vesicular; pleomorphism 

 rapid. 

 Center umbilicate, dark brown, surrounded by a white plateau soon gray green, then 

 lighter and slightly yellowish, outermost zone white. 



E. griseum. 

 Center flat, becoming irregularly folded in six weeks, gray with a white border, the 

 medium colored violaceous. E. griseum var. hrasiliensis. 



Surface cerebriform, pulverulent, rosy with ochraceous tints toward center; becoming 

 vinous, except center, which remains ochraceous; velvety, yellow ochre on 

 Sabouraud conservation agar. E. multicolor. 



Central knob surrounded by central plateau which becomes divided into two elevated 

 zones by periclinal furrow, cut by four slight radial ridges ; white ; not inoculable 

 to experimental animals, tinea capitis of Soudanese. 



Ateleothylax Currii (p. 431). 

 Central area raised, with about 12 radial furrows; reverse brown, with a 3 mm. red 

 orange ring and margin of immersed hyphae, woolly above. 



E. erioton. 

 Central area raised, irregular, powdery, with about 2-4 radial furrows, chalky white with 

 sometimes a feeble rose or lilac tone, disc rarely white, sourrounded by a zone of 

 purplish or greenish yellow. E. Otae. 



Spirals often present on various media but absent on Sabouraud agar; nodular organs 

 highly developed. 

 Colonies flat discs with shallow radial furrows, cream yellow, surface suggesting hot 

 curdled milk. On conservation agar, a truncated cone with deep crater of short 

 white velvet and radial furrows. E. lacticolor. 



Colonies with central umbo with a yellowish brown powdery zone and a tendency to con- 

 centric zones, woolly. E. Nakamurae. 

 Spirals on Sabouraud media in pleomorphic mycelium only, nodular organs not reported. 



Umbilicate at first, becoming umbonate, white powdery, with long immersed rays forming 

 small powdery islets where they reach the surface; on conservation agar, 

 glabrous, moist, yellow, margin with short radial folds, powdery. 



E. farinulentum. 

 Not umbilicate at first, with only a slight boss in the center, light cinnamon with a 

 white margin, deepening with age, surface suggesting rough side of a piece of 

 chamois, no folds or furrows, margins uneven. E. scorteum. 



