ASPERGILLUS NIGER GROUP 223 



in the museum labeled "Ustilago phoenicis" and attributed to Corda, thus 

 establishing the identity of the organism of Corda, which was not recogniz- 

 able from any previous references. A. ustilago Beck (1892) is described 

 with the same measurements. The measurements of sterigmata place 

 A. phoenicis in the section of the group with primary sterigmata 50 to 60m 

 in length; it was first described as Ustilago phoenicis by Corda (Icones 

 Fung. IV., p. 9, pi. 3, fig. 26. 1840) and transferred by Patouillard and 

 Delacroix, as noted above, to 8. phoenicis (Corda) Patouill. and Delacr. 

 If we accept the use of "phoenicis" attributed to Corda as correct, this 

 species becomes the type of the section of the black Aspergilli with primary 

 sterigmata of intermediate length and conidia not over 4m in diameter 

 (fig. 61 E and 62 B). This was cited by Thorn and Currie as A. phoenicis 

 (Corda) Pat, and Delacr., and continued recognition of the species, to 

 cover a group of strains occasionally encountered, appears warranted. 



Aspergillus pulverulentus (McAlpine) Thorn, in Jour. Agr. Res. 7:10-11. 



1916. 



Synonym: £. pulverulenta McAlpine, in Agr. Gaz. X. S. Wales (1896) 

 7: 302. 1897. See also Thorn and Church, The Aspergilli, 

 p. 179. 1926. 



McAlpine's data include: "White to dirty yellow mycelium;" heads 

 155 to 340m in diameter, radiate with chains mostly separate; conidiophores 

 erect, stiff, up to 7 mm. by 20m with walls up to 5m thick; vesicles 70 to 170m 

 in diameter, globose or nearly so; primary sterigmata up to 144m long by 

 8m, secondary 14 to 18m long; conidia globose, rough, about 4m in diameter. 

 Colonies with these general characters have been studied in culture at 

 least twice and maintained for long periods; one came from Spain, the 

 other from Texas. A. strychni Lindau (Hedwigia Bd. 43, Rept, 5, p. 

 306-7. 1904) is one of this series. 



Light Colored Forms 



Aspergillus niger mut. cinnamomcus (Schiemann) n. comb. 



Synonym: A. cinnamomeus Schiem., in Ztschr. Induktive Abstam. u. 

 Vererbungslehre, Bd. 8, Heft 112, pp. 1-35, 16 fig., 2 pi. 

 (1 col.) 1912. See also Thom and Church, The Aspergilli, 

 p. 164. 1926. 



Colonies upon Czapek's solution agar at room temperature, rapidly 

 growing and spreading, producing an aerial growth of conidiophores and 

 heads reaching a pale cinnamon upon maturity. Reverse only slightly 



