638 MEDICAL MYCOLOGY 



primary phialide. Conidia spherical, 3/x in diameter, becoming slightly ver- 

 rucose in age, brownish in original lesions. Optimum temperature 30° C. 



Colonies at first white, then greenish or chrome green in center, then 

 dirty, finally becoming chocolate brown. Almost always brown at 37°C. 

 Giant colony after 10 days is 2 cm. in diameter, white, velvety, with center 

 slightly depressed. GroAvth good on the usual laboratory media ; e.g., Sabour- 

 aud maltose, carrot, Raulin's medium. 



Aspergillus Jeanselmei Ota, Ann. Parasitol. Hum. Comp. 1 : 137-146, 1923. 



Found on the nails of an old man in Paris. Nails had disappeared from 

 all but four fingers, where they Avere deformed, thickened, grayish yellow. On 

 other fingers there were thick crusts in place of the nails. Epidermis not 

 affected. 



Mycelium branched, sparingly septate, 2-5 fx in diameter, sometimes 7/a in 

 young cultures. Conidiophores 100-400/i, long, rarely 80/*, expanding gradu- 



Fig. 101. — Aspergillus Jeanselmei. 1, normal conidiophore ; 2, branched conidiophore, showing 

 abnormal phialides ; S, conidia {1 and 2 X300 ; S X400). (After Ota 1923.) 



ally from 4-5/x at the base to nearly 8/a in diameter at the top. Heads includ- 

 ing phialides and conidia measure 16-29/x across, occasionally up to 50/i. when 

 both primary and secondary phialides are present. Phialides mostly simple, 

 cylindric or fiask-shaped, 4-10 x 3-5/*, or when in two rows, the primary 

 cylindric or slightly clavate, bearing two secondary flask-shaped phialides, 

 10-15 X 5/A, to each (Fig. 101). Conidia spherical, sometimes ovoid, 3.5-6. 5/x 

 in diameter (mean 5/*), slightly green, becoming reddish brown in 7-month- 

 old cultures, sometimes slightly verrucose, in long chains. 



On malt agar, glucose agar, carrot, or potato at 25°, mycelium white, 

 greening on the third day, remaining yellowish green for months. On malt 

 agar at 35°, growth is more rapid with colony turning green the second day. 

 Colony on glucose agar becomes chocolate brown, with a greenish lustre in 



