ASPEKCILLACEAE 631 



Isolated from small subepidermal abscesses in the hairy areas of head 

 which open to the surface by small yellow orifices, covered by a purulent 

 crust. Pathogenic for white rats, producing ulcers. 



Conidiophores arise either from submerged or aerial hypliae, 120/a long 

 and more, when forking from tlie latter, up to 30()-500/x or even 800/x in length 

 and 8-16(0, in diameter. Vesicle clavate to subspheric, 24-30/z in diameter, 

 phialides radiating, 4-12(a, mostly 6-10/x by 2-4/^. Conidia ovoid to spherical. 

 5-8/x in long axis, rough, pale green (blue green in mass). Perithecia globose, 

 yellow then rusty brown, 80-120/a in diameter; asci 10-12^ in diameter; asco- 

 spores 6 x 4-5/a Avitli shallow, smooth furrow, no frill or ridges. 



Colonies more or less floccose, at first white, then bluish green with de- 

 veloping conidia, then through yellow to rusty red throughout and intense 

 red in the substratum. 



Aspergillus montevidensis Talice & Mackinnon, Soc. Biol. Montevido 61 

 Sesion. 4 pp. 1931; Reunion Hoc. Argent. Patol. Reg. del Norte, Tucuman 7: 

 278-284, 1932. 



Fig. 100. — Aspergillus Amstelodami. A, conidia; B, ascospores ; C, asci containing ascospores. 



(After Fonseca 1930.) 



Isolated from a ease of otomycosis in ^Montevideo. 



Tympanic membrane was covered with dark, slightly adherent spots in 

 which the Aspergillus was demonstrated. 



Fertile mycelium at first glaucous (glaucus 38 Saccardo, Chromotaxia), 

 then yellowish (flavo-virens 33 Saccardo), and finally yellowish green (oliva- 

 ceus 39 Saccardo). Sterile mycelium Avhite or grayish (cremeus 27 Saccardo). 

 Conidiophores, 55-234^i long (mean 170/i) by 5.1-8.5/i, in diameter (mean 

 23/u.), not visible on casual inspection, smooth, terminating in a spherical 

 vesicle, 13.5-25.5/x in diameter (mean 18.7/a), of greenish or yellowish green 

 color. Phialides elongate, inserted over almost the entire surface of the 

 vesicle, not crowded, 6.8-13.6 x 2.5-3.4/i (mean 10.8 x 3/^). No secondar}* 

 phialides. Conidia usually ovoid, sometimes ellipsoid or spherical, 3.4-o.6;u 

 in diameter (mean 4.9/x), generally smooth and forming short chains which 

 are easily broken up in the making of preparations. Fertile perithecia abun- 



