THE ASPERGILLUS GLAUCUS GROUP 133 



spore markings are not given and there is a dearth of data to identify them. 

 Some of these names are given : 



A. disjunctus Bainier and Sartory, in Soc. Mycol. France Bui. 27: 346-368. PI. X, 

 XI. 1911. Ascospores described as 11.2 by 5.6m with furrow and crests. 



.4. repandus Bainier and Sartory, in Soc. Mycol. France Bui. 27: 463. PI. XVIII. 

 1911. Ascospores described as 11 by 6m with furrow but no crests. 



.4. mencieri Sartory and Flament, in Compt. Rend. Soc. Biol. (Paris) 83: 1114-1115. 

 1920. Ascospores 10 by 4.7m with furrow and crests. 



A. godfrini Sartory and Roederer, in Assn. Frangaise pour l'Avancement des 

 Sciences, 42nd Session, Tunis 1913. pp. 601-603. 1914. Conidial stage only. This 

 was growing at blood heat and warmer. Its general description suggests affinity 

 with the large-spored species of the A. glaucus group. It has not been seen in cul- 

 ture by us. 



Strains with the particular measurements reported for the thiee asco- 

 sporic species listed above have not come into our collection, yet presum- 

 ably they and many more with minor variations may be found. 



Aspergillus medius Meiss., in Bot., Ztg. 55: (337)-344, (353)-357. 1897. 



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

 0.5 to 1.5 cm. diameter in 6 weeks, tufted, consisting of a dense growth of 

 yellow-brown hyphae bearing neither conidial heads nor perithecia ; reverse 

 in shades of yellow-brown. 



Colonies upon Czapek's solution agar with 20 percent of sucrose at room 

 temperature very slow-growing (optimum 20°C. ±), strongly wrinkled, 

 tufted, irregular in outline, attaining a diameter of 5 to 6 cm. in 6 weeks 

 (fig. 33 E), colony center deep orange-red becoming yellow to white at the 

 margin, which is characterized by bundles (becoming branching columns 

 at lower temperatures) of hyphae bearing dark-green conidial heads in the 

 manner of loose divergent coremia; perithecia ripening very slowly, ma- 

 turing ascospores in 2 to 3 months, mostly abortive; conidial heads rela- 

 tively few (more abundant and larger at lower temperatures) and borne 

 either in coremiform masses or scattered throughout the colony; reverse in 

 shades of orange -maroon. 



Perithecia scattered, mostly abortive, borne in a dense felt of orange-red 

 hyphae, very slowly ripening, globose to very irregular in form, extremely 

 variable in size, rarely attaining a diameter of 125m, containing very few 

 mature ascospores; asci 18 to 20m; ascopsores sparingly produced, lenticu- 

 lar, mostly 8.8 to 9.6m by 6.0 to 6.8m, occasionally 10m in long axis, some- 

 what roughened in the equatorial region, furrow broad and shallow, ridges 

 prominent, relatively thin and irregular. 



Conidial heads deep-green, radiate, compact, and of two types: Small 

 heads 100 to 150m in diameter borne on loose coremiform columns, and 

 larger heads 200 to 250m in diameter often scattered throughout the colony, 



