ASYMMETRICA-FUNICULOSA 463 



less abundant in marginal areas, conidial iieads colorless or dirty white to 

 very light gray; exudate limited in amount, adherent to the hyphae and 

 conidiophores; odor strong, penetrating, earthy; reverse uncolored;conidial 

 structures sparsely produced, generally arising from submerged hyphae; 

 conidiophores erect, comparatively coarse, from GO to 125/i by 4.0 to 5.0)Lt 

 with walls conspicuously and coarsely roughened; penicilli typically bi- 

 verticillate, commonly showing a terminal cluster of metulae but sometimes 

 branched, usually asymmetric in pattern; metulae in groups of 2 to 4 or 

 5, from 10 to 13/u by 4.0 to o.O/x with walls conspicuously roughened; sterig- 

 mata few in the verticil, closely compacted, usually parallel, 7 to 9m bj^ 

 2.2 to 2.8/x, rough-walled, terminating rather abruptly; conidia at first 

 strongly elliptical to capsule-shaped or almost rectangular, 2.8 to 3.3^ 

 by 2.0 to 2.5/x, smooth-walled, characteristically forming irregular slimy 

 masses in which individual conidia commonly swell, become rounded, and 

 germinate. 



Colonies en steep agar spreading broadly, 7 to 8 cm. in 2 weeks, closely 

 wrinkled in a cerebriform pattern, thin, close-textured, appearing wet, 

 dirty white to light gray becoming dull light brown in age, conidial struc- 

 tures sparsely produced at 2 weeks, fairly abundant at 4 weeks; exudate 

 lacking; odor strong, penetrating; reverse uncolored to light gray; penicilli 

 as described above but commonly forming irregiUar columns of enslimed 

 conidia up to 75 or 100^ in length. 



Colonies on malt agar as on steep agar except marginal areas less closely 

 wrinkled; penicilli as described above. 



Species description based upon NRRL 1070, received in 1928 from the 

 Centraalbureau as Zaleski's type and discussed by Thom in his Monograph 

 (1930) as his No. 5010.16. 



The above description is in fairly close agreement with Zaleski's original 

 diagnosis except for the conspicuously roughened conidiophores (Zaleski 

 reported and illustrated all walls as smooth). In studying the above 

 strain, received as Zaleski's type, Thom (1930, p. 485) reported conidio- 

 phore walls as rough, and penicilli as either symmetrical or asymmetrical. 

 The culture now in our possession retains the characters observed by Thom 

 and is believed to represent Zaleski's original isolate despite the repoi'ted 

 differences in the character of conidiophore walls. 



Thom placed this species in the Biverticillata-Symmetrica adjacent 

 to Pefiicillium tardum, largely because of its limited growth upon Czapek's 

 solution agar. Such a relationship seemed to be further indicated by the 

 biverticillate and sometimes symmetrical pattern of its penicilli. Careful 

 re-examination of the type culture, and comparison wdth recognized mem- 

 bers of the P. tardum series, has led us to question this relationship. The 



