ASYMMETRICA-FASCICULATA 503 



all the Fasciculata, are rough on malt agar); and conidia are generally- 

 elliptical to subglobose and smooth-walled. 



Penicillium janthogenum Biourge (Monograph, La Cellule 33: fasc. 1, pp. 143-145; 

 Col. PI. II and PI. Ill, fig. 13. 1923) may likewise be regarded as synonymous with 

 P. martensii since careful examinations of original descriptions and figures fails to 

 reveal any significant differences between the two. Close similarity of these forms 

 was observed by Thorn (1930) who studied the type material of both species. Careful 

 examination of NRRL 951 (from the Thorn Collection as No. 4733.77), representing 

 Biourge's type of P. janthog num, in our current study confirms the authenticity of 

 the culture, yet fails to reveal any marked differences between this strain and other 

 isolates regarded as typical of P. rnartensii Biourge. 



A strain, NRRL 2034, received from the Centraalburoau as P. janthogenum Bi- 

 ourge, contributed by Rennerfelt in 1936, produces penicilli usually with one closely 

 appressed branch, consistently elliptical conidia, and smooth-walled conidiophores 

 on all media. It does not differ significantly from P. martensii. 



Penicillium johannioli Zaleski (Bui. Acad. Polon. Sci.: Math, et Nat. Ser. B, pp. 

 453-454 ; Taf . 40. 1927) was described in terms which clearly align it with P. martensii 

 as previously published by Biourge. In Thom's Monograph (1930) both species were 

 included and minor differences in zonation and depth of colonies, colony color in re- 

 verse, character of stalk walls, etc., may be noted in the descriptions given. After 

 careful consideration, we are led to believe that P. johannioli represents, at most, a 

 somewhat divergent example of a variable species. NRRL 965, the type strain of 

 P. johannioli differs from the more commonplace strains of P. martensii by producing 

 an unusual amount of clear exudate and conidia that are more definitely and per- 

 sistently elliptical. The rich blue-green color of both species has been reported by 

 their authors. The species is regarded as synonymous with Biourge's prior species 

 P. martensii. 



Penicillium -polonicum Zaleski (Bui. Acad. Polonaise Sci.: Math, et Nat. Ser. B, 

 pp. 445-447, Taf. 38. 1927) was placed near P. patulum Bainier by Thorn (1930) pri- 

 marily on the bases of its elliptical conidia and its bluish green to gray color (in age). 

 Careful study of the type strain, NRRL 995, as maintained in our collection and as 

 received from the Centraal bureau in May 1946, leads us to question this placement. 

 These strains differ from P. urticae in producing colonies with more blue coloration, 

 conidiophore walls slightly roughened on Czapek and definitely roughened on malt, 

 sterigmata and metulae consistently longer, and pronounced moldy odors. These 

 characteristics clearly align the cultures with the P. cyclopium series. Assignment to 

 a specific species is not recommended, but the existing cultures, the original descrip- 

 tion, and Thom's notes (1930) indicate closer relationship to P. martensii Biourge 

 than to P. cyclopium Westling. 



Penicillium aurantio-virens Biourge, in Monogr., La Cellule 33: fasc. 1, 

 pp. 119-121; Col. PI. I and PI. I, fig. 5. 1923. Thorn, The Penicillia, 



pp. 316-317. 1930. 



Colonies on Czapek's solution agar (fig. 128D) attaining a diameter of 

 2.5 to 3.0 cm. in 10 days at room temperature, in some strains growing 

 irregularly with some areas or sectors restricted and strongly tufted and 

 others spreading and tending toward lanose or velvety, ranging from 500/x 



