THE ASPERGILLUS TERREUS GROUP 201 



2 to 3, sometimes 4 secondary phialides, 5 to 6ju long. Conidia spherical, 1 to 2/x in 

 diameter, brown. Other spores, borne laterally on short branches (phialides ?), 



3 to 4p. Chlamydospores occasional. Under some conditions, only monstrous 

 phialides are formed, with a "pleomorphic" mycelium resulting. Described as pres- 

 ent in lesions of pityriasis versicolor flava. Inoculation into the human skin repro- 

 duced the original disease. From the description given the organism is some strain 

 of the A. terreus group. 



Aspergillus carneus (v. Tiegh.) Blochwitz 



Synonyms: Sterigmatocystis carnea v. Tiegh., in Bull. Soc. Bot. France 

 24: 103. 1877. Cited also in Saccardo Sylloge 4: 74, and 

 in Wehmer's Monograph, p. 127 (Mem. Soc. Phys. Hist. 

 Nat. Gen. pp. 1-157. 1899-1901). 

 Sterigmatocystis spuria Schroter as a bibliographic change in 

 Colin Krypt. Fl. Schleisen 3 : 2 Helfte Lief. 1, p. 218. 1893. 

 Aspergillus carneus Blochwitz, in Ann. Mycol. 31(1/2): 81. 

 1933. 



Colonies upon Czapek's solution agar growing well at room temperature 

 spreading, plane or radially furrowed, more or less floccose, at first white 

 but becoming pale vinaceous-fawn to vinaceous-fawn (Ridgway, PI. XL) 

 with the development of mature fruiting structures (PI. V F, and fig. 58 C), 

 ranging from 1 to 2 mm. or more deep in central areas to very thin and 

 spreading at colony margin, comparatively heavy sporing throughout with 

 fructifications arising from both aerial and submerged mycelium, some 

 strains showing limited areas yellow in color from an underlying felt of 

 heavy-walled sterile hyphae suggestive of hulle cells (fig. 49 F) ; odor often 

 pronounced, somewhat putrid; reverse in orange-yellow, bright orange, to 

 deep brown shades; conidial heads loosely columnar, averaging 150 to 200m 

 by 25 to 35m, but commonly somewhat larger, varying in color as the colony. 

 Conidiophores variable in length, mostly 250 to 400m but ranging up to 1 

 mm., occasionally bearing secondary fruiting structures as short and irregu- 

 larly placed branches, smooth, sinuous, uncolored, mostly 3.5 to 6.0m in 

 diameter. Vesicles hemispherical, ranging from 5.5 to 9m, rarely as much as 

 10m (fig. 57 Ci). Sterigmata in two series, primary 5.5 to 6m by 2 to 2.5m, 

 secondary 5 to 5.5m by 1.8 to 2m, commonly very few primary sterigmata 

 present. Conidia globose to subglobose, thin-walled, averaging 2.4 to 2.8m, 

 with maximum rarely exceeding 3.2m. 



Colonies upon malt extract agar growing more restrictedly, heavier spor- 

 ing, with pigmentation generally more pronounced and with conidial heads 

 averaging slightly larger than on Czapek's solution agar, otherwise dupli- 

 cating the above description. 



This species is represented by strains NRRL No. 527, isolated as an air 

 contaminant in Washington; NRRL No. 298, isolated from Kansas soil; 

 and other soil isolations from different parts of the United States, Mexico, 



