ASPERGILLUS NIGER GROUP 233 



sterigmata and on very short conidiophores among them; mycelium gray- 

 yellow; reverse dark reddish-brown and mycelium much wrinkled 



A. pseudo-carbonarius (Bainier nn.) Mosseray 



B. Conidia 2.5-4, even to 5m in diameter, mostly more or less rough and more or less 

 colored but some smooth or nearly so ; vesicles normally globose ; primary sterig- 

 mata mostly 20m long or longer, sometimes up to 100m. 

 a. Colonies deep purple-brown or clear purple-brown. 

 I. Conidiophores short (up to 2 mm. on an average). 



a. Wrinkles in reverse shallow, transverse (in tubes). 



Heads small ; conidiophores short (up to 1 mm.) 8 to 15m in diameter, 

 primary sterigmata 5 to 20m; reverse cream colored 



A. microcephalus Mosseray 

 Heads "medium"; conidiophores up to 2.5 mm.; primary sterigmata 

 up to 45m; reverse dark reddish-brown, often spotted and becom- 

 ing very dark A. phoenicis (Corda) Thorn 



Syn. A. longobasidia (Bainier n.n.) Mosseray 



Syn. A. bainieri Mosseray 1934 



/3. Wrinkles in reverse of mycelium fairly numerous, occasionally 



anastomosing. 



Appearance "mealy", deep purple-brown; conidiophores very short 



up to 0.5 mm. and 7 to 13m in diameter; primary sterigmata 4 to 



12m; reverse deep olive-brown A. pseudo-citricus Mosseray 



Appearance sub-granular; brown-purple, at times clear brown to 

 umber; conidiophores up to 1.5 mm. by 7 to 20m; conidia smooth or 

 nearly so; growth rapid. Reverse slightly colored: 

 Reverse cream to pale brown; primary sterigmata 8 to 20m 



A . fuliginosus Peck 



Syn. S.fuliginosa Bainier 



Syn. A. praecox Mosseray 1934a 



Reverse very deep brown; primary sterigmata up to 50m; sclerotia 



occasional A. sclerotifer Mosseray 



Reverse uncolored to citron yellow; primary sterigmata 8 to 20m 



A. citrino-niger Mosseray 

 7. Wrinkles sharp and numerous (reticulated). Reverse becoming 

 rapidly dark, almost black. 



Aspect mealy; color purple-brown; conidiophores up to 1 mm; 

 drops not colored; primary sterigmata 12 to 30m; conidia smooth 



or nearly so A . densus Mosseray 



Aspect mealy to granulate, deep purple-brown; drops numerous, 

 bronze; primary sterigmata 12 to 30m. • -A. rutilans Mosseray 

 Aspect subgranular, brown-purple; drops numerous, black, some 

 of them very large; primary sterigmata 12 to 30m 



A. guttifer Mosseray 

 Reverse not so dark, sometimes olive or colorless. 

 Reverse deep olive, often spotted; primary sterigmata 15 to 30m 



A. Buntingii Mosseray 

 Reverse not colored; commonly showing areas sterile or free 

 from spores; mycelium slightly yellow at first; primary sterig- 

 mata 20 to 50m A. variegatus Mosseray 



