■ 



284 



MEDICAL MYCOLOGY 



Cells spherical to ellipsoid or ovoid, rarely of other shapes, normally 2-4/4, 

 with small cells 1-1.5/x and giant cells up to 10/x (Fig. 52). 



Giant colonies white, with one or more central craters, margin lobular, 

 and denticulate (type II of Will). On liquid media, pellicle, ring, and sedi- 

 ment present. Ferments glucose, fructose, sucrose, maltose, trehalose, meli- 

 tose and galactose; fails to assimilate lactose and all alcohols except glycerol ; 

 assimilates peptone and asparagin, ammonium sulphate slightly, but not 

 nitrites or nitrates. Gelatin not liquefied. 



4 



^<f ^^ 



cCP> 



Fig. 52. — Blastodendrion intermedium. A, mycelium and blastospores ; B, actively sprouting 

 blastospores ; C, germination o° blastospores. 



Blastodendrion elongatum Mattlet, Ann. Soc. Beige Med. Trop. 6: 17-18, 

 1926. 



One of the organisms isolated from stools of patients suffering from true 

 dysentery in Belgian Congo. Also isolated in one case of European resident 

 suffering from enteritis. 



After 3 days in potato decoction, spherical cells, about 6/a in diameter, or 

 ovoid cells, 8 x 4/a, containing large vacuoles, also long narrow cells, 3 x 12-23/*. 

 Cell groupings do not give rise to simple filaments. Blastospores spherical, 

 ovoid, or elongate at the septa. 



