II22 



FUNGI IMPERFECTI 



Acremonium potroni Vuillemin, 1911. 



Found by Potron and Noisette in a case of subcutaneous gum 

 mata with fever, somewhat resembling typhoid before the gum- 

 mata appeared. Easily grown on Sabouraud's agar; colonies 

 white, then pinkish, and, later, orange-yellow. Serum is liquefied. 

 In cultures the mycelial filaments are septated; numerous conidio- 

 phores are present of a 

 peculiar elongated type, 

 15 to 20 [jb in length. 

 Conidia ovoid, with a 

 smooth surface, 4 to 5 

 in length and 2 to 2-2 [jb 

 in breadth; of pinkish 

 colour. This fungus is 

 pathogenic to guinea- 

 pigs. 



Fig. 608. — Acremonium 

 potroni Vuillemin. 



(After Vuillemin.) 



Acremonium niveum Boucher, 19 18. 

 Very similar to A. potroni, but colonies are generally white. 



Genus Seedosporium Saccardo, 1911. 



Definition. — Sporophorinese with unbranched decumbent conidio- 

 phores. 



Type S^qqIqs.— Seedosporium apiosperntum (Saccardo, 1911). 

 Remarks. — The other known species p^re Seedosporium acrentoni- 

 oides Harvey, which does not concern us, and S. sclerotiale. 



Seedosporium apiospermum (Saccardo, 1911). 



Definition. — Seedosporium with myceHum at first white and later 

 slightly brown; bundles 3-5 mm. broad in cultures. Mycelial 

 hyphae creeping, filiform. Conidiophores decumbent, very slightly 

 branched, hyaline, 2-5-3 microns, with one spore oblong, 14 x 5 -6- 

 II X 57, rarely subround; at first hyaline, later dilute, dirty rose 

 yellow. Seedosporium, causing white maduromycosis. 



Remarks.— Easily grown, the cultures are whitish and covered 

 with duvet; may become brownish when old. 



Mycelial tubes septated and of various size; may reach 4 to 5 



Fig. 609. — Seedosporium apiospermum 

 Saccardo. 



(After Radaeli.) 



