THE ASPERGILLUS VERSICOLOR GROUP 193 



8. glauca Bainier (Bui. Soc. Bot. France 27: 29-30, pi. 1, fig. 3, 1880, ibid. 28: 77, 

 1881). From extract of henbane, dregs of wine, casks, and corks. 



A. globosus Jensen (N. Y. Cornell Agr. Exp. Sta. Bui. 315, p. 482, 1912). The 

 type culture received from Whetzel (Thom No. 2705) is certainly a member of this 

 series, and is characterized by yellowish-green to olive-green conidial areas, with 

 colony reverse in yellowish-orange to wine red. 



S. polychroma Ferraris (Fl. Ital. Crypt. Hyph. p. 640). Syn. A. versicolor, fide 

 Tiraboschi, in Ann. de Botanica (Rome) 7: 9, 1908. 



S. spuria Schroeter (Cohn Krypto. Fl. von Schlesien 3: 2 Halfte, Lief. 1, p. 218, 

 1893). Position in doubt. May represent a form of A. versicolor similar to the flesh 

 colored forms discussed by Thom and Church in The Aspergilli, p. 145, 1926, or may 

 belong with A. carneus (See p. 201). 



A . tabacinus Nakazawa, Simo, and Watanabe (Jour. Agr. Chem. Soc. Japan 10(2): 

 177-178, 1934). The detailed figures given in contrast to their own strain of A. versi- 

 color showed differences which disappear when large numbers of isolations are 

 studied. 



Aspergillus humicola Chaudhuri and Sachar, in Ann. Mycol. 32: 97. 1934. 



Characterization after Chaudhuri and Sachar 



Colonies on Czapek's solution agar, at first white passing through shades 

 of olive-gray (Ridgway, PI. XLVI. 20. o_yy ) velvety at margin, floccose 

 toward the center; reverse and substratum in shades of yellow, heads radi- 

 ate. Conidiophores arising directly from the substratum, up to 300m in 

 length by 4 to 5.4m in diameter, or as short branches, about 70m long, from 

 aerial hyphae; walls smooth and almost colorless. Vesicles 9 to 15m in 

 diameter, colorless, flask-shaped, with sterigmata radiating from the whole 

 surface of the larger heads, or only borne in the upper third in small heads; 

 primary sterigmata 3.6 to 5.4m by 1.8 to 2m; secondary sterigmata 3.6 by 

 1.8m- Conidia globose, smooth, 2 to 3m in diameter, in radiating chains. 



Neill (1939) is believed to have correctly placed this organism with A. 

 versicolor and its allies despite the smoothness of its conidia. The "almost" 

 colorless conidiophore suggests relationship to Aspergillus ustus; in this 

 group certain forms (e.g., Blochwitz's A. ustus var. laevis) apparently have 

 spores smooth or nearly so (see p. 175). 



Pathogenesis 



Aspergillus sydowi is not reported by name as a parasite, but strains 

 described in terms which must be interpreted as placing them with A. sydowi 

 includes A. tunetanus (Langeron) Dodge from fleshy lesions on a hand in 

 Tunis: A. Vancampenhouti (Mattlet) Dodge also from tropical Africa; A. 

 cyaneus (Mattlet) Dodge from the same region. The evidence at hand 

 links A. sydowi more closely with A. nidulans than was formerly supposed, 

 although such relationship is strongly indicated by the identical character 

 of their hulle cells. The fragmentary descriptions commonly given for 



