ASPERGILLACEAE 



Key to Pathog-enic Species 



623 



Conidiophore walls thick, pitted, comuiouly reported as rough, asperulate or spinulose. 



Colonies yellow to brick red, couidia small, 3-4^; couidiophores yellow, 6-10^ in diameter; 

 heads 70-SOfi; vesicle subspheric, 20-30^ in diameter; primary phialides up to dOfi 

 long, 4-5m in diameter below, 10-12^ at apex, secondary phialides, 6-10 x 2-S(i. 



A. Greoonis. 

 Colonies some shade of green or yellow green on favorable media; conidiophores arising 

 from substratum; phialides partly in one series, partly in two in the larger 

 heads; no sclerotia. 

 Very inadequately described; from the human ear. A. fiavescens. 

 Conidiophores up to 4 mm. long, from human ear. A. Siebenvmnni. 

 Colonies greenish yellow in age; conidia ellipsoid, green, 2.3-3.1jti. 



A. diplocystis. 

 Colonies yellow, greenish in age with heavy masses of aerial mycelium, couidia spheri- 

 cal, 6Afi. A. luteus. 

 Colonies at first orange yellow, then deep brown; conidia pyriform to spherical, 

 5.5-6^, roughened with rather coarse bars of brown coloring matter; co- 

 nidiophores thick-walled with pitting inconspicuous or partially suppressed. 



A. Tamarii. 

 Colonies cinnamon or chocolate, couidia 1-2/a. A. cinnamomirms. 



Conidiophore walls not pitted or roughened. 



Conidial heads black or brown, never greenish. 



Conidia thin-walled, smooth or delicately spinulose, never pitted or roughened, with 

 tubercles or bars of coloring matter. 

 Phialides in one series, conidia brown, 3-5/^. 



Heads brown, phialides 6/x. A. Gratioti. 



Heads olivaceous to subfuscous, phialides up to 20|U. 



A. svibfuscus. 

 Phialides in two series. 



Heads cinnamon to chocolate, chains of conidia radiating. 



A. cinnnniomiivus. 

 Heads ochraceous, chains of conidia in columns. 



A. Hortai. 

 Conidia roughened by tubercles or bars of color, phialides in two series. 

 Primary phialides about 50^ long. A. Phoenicis. 



Primary phialides 20-30/li long. A. niger. 



Primary phialides about 12im long. A. Macfiei. 



Conidial heads some shade of green. 

 Phialides in one series. 



Conidia more than 4/i in long axis, ellipsoid to pyriform (spherical in A. 

 Amstelodavvi), pitted or rough. 

 Perithecia present, yellow to orange in sucrose media. 



Ascospores with furrow but no ridges, 10 x 4.7a; perithecia 200-220^; 



conidia 9-12^. A. Mencieri. 



Ascospores with furrow, 6 x 4-5;u ; perithecia 80-120^, conidia 5-8/x. 



A. riCber. 

 Ascospores 5.5 x 3.7/x; perithecia 30-100/^; conidia 3.4-5.6^. 



A. inontevidensis. 

 Ascospores 4.7 x 3.7/m. 



With distinct furrow, conidia 2.5-4.5/i, spherical, echinulate. 



A. Amstelodami. 

 ^Yithout furrow, conidia 4.7 x 7.fi/u, saprophyte reported from 

 human ear. A. repens. 



