THE ASPERGILLUS GLAUCUS GROUP 131 



Culture XRRL Xo. 123 contributed by Dr. Paul Simonart as an un- 

 named culture from the Biourge collection differs from the species as above 

 described by consistently producing ascospores with walls entirely smooth, 

 whereas in other characters the ascospores duplicate essentially those of 

 XRRL Xo. 120. Further XRRL Xo. 123 produces colonies of lighter color 

 than other strains under observation and may, in fact, represent a fungus 

 comparable to that described as Aspergillus mutabilis by Bainier and 

 Sartory. 



Aspergillus u?nbrosus, A. mutabilis, and A. mollis were described by 

 Bainier and Sartory (1911c, 1912b) primarily upon the basis of colony color 

 (pigment production) and conidial apparatus, with the ascopsores of A. 

 umbrosus recorded as slightly less in long axis (8.0 by 5.6m) than those 

 of the other species (8.4 by 5.6m)- After careful consideration of the 

 three descriptions and detailed study of the strains in the authors' posses- 

 sion showing in general the ascospore described by Bainier and Sartory, 

 it is believed that they had at hand three cultural variants of the same 

 species. A . umbrosus is retained as the species designation, as it is believed 

 that their description of this species more adequately pictures the cultural 

 and morphological characters of the fungi under consideration than either 

 of the earlier descriptions, which are left as probable synonyms. 



Aspergillus echinulatus (Delacr.) Thorn and Church, The Aspergilli, 



p. 107. 1926. 



Synonyms : Eurotium echinulatum Delacr., Soc. Mycol. de France, Bui. 



Trimest. 9: 266, pi. XIV, fig. III. 1893. 

 .4. brunneus Delacr., in Bui. Soc. Mycol. France 9: 185, PL 



XI, fig. 9, 1893; was described as the conidial stage. 

 E. verruculosum Vuill., Soc. Mycol. de France, Bui. Trimest. 



34:83. 1918. 



Colonies upon Czapek's solution agar (3 percent sucrose) very restricted, 

 1.5 to 3.0 cm. in diameter after 4 weeks, marginal area blue-green from 

 conidial heads and central portion reddish-brown from an overgrowth of 

 sterile encrusted hyphae, perithecia lacking; reverse deep orange. 



Colonies upon Czapek's solution agar with 20 percent of sucrose slow- 

 growing, plane or somewhat wrinkled, spreading irregularly, attaining a 

 diameter of 7 to 8 cm. in 4 weeks (fig. 33 C), commonly mottled in appear- 

 ance due to the uneven distribution of green conidial heads above the 

 underlying orange-red perithecial layer; conidial heads bottle-green, 

 abundant, commonly crowded in localized areas but scattered thinly 

 throughout the remainder of the colony; perithecia abundant and borne 

 in a felt of hyphae encrusted with red granules at the agar surface, con- 

 spicuous where not obscured by massed green heads ; reverse cinnamon to 

 deep red-brown. 



