Phylum:Anamorphic fungi >> Class: Anamorphic fungi >>  Order: Anamorphic fungi 
 BCRC Number 32309      
 Scientific Name: Aspergillus penicillioides

Aspergillus penicillioides Speg., Rev. La Plata Univ. Fac. Agron. Vet. 2: 246. 1896.

 Description: Colony diameters on Czapek’s Agar 1.5 cm in 3 weeks at 25°C, dense, raised or wrinkled, fimbriate at margins; mycelium white. Conidial heads inconspicuous, rare, small, enveloped in slim, blackish green-gray (R., Plate LII); reverse yellowish white to pale yellow. Colony diameters on M40Y, 4.0-5.0 cm in 3 weeks at 25°C, thin velutinuous, plane to radially furrowed, heavily sporulating; conidial heads radiate to loosely columnar, pea green, sage green to Andover green (R., Plate XLVII); reverse colorless or greyish orange to dull dark green; vesicles subglobose, 7.5-20.0 μm in diameter; stipes 126-560 × 4.0-9.0 μm, thin walled, smooth, straight or sinuous, uncolored. Aspergilla uniseriate; phialides mostly 5.5-11.0 × 2.7-3.6 μm, covering the upper 3/4 of the vesicle. Conidia globose to subglobose, 3.0-4.3 μm in diameter, rough-walled.

Taiwan, Pingtung Pref., from stored paddy rice, 17 Dec 1986; corn field soil, Penghu Pref., 4 Sep 1987 (CCRC 32309); stored paddy rice, Ilan Pref., 3 Mar 1987.

 Habitat: from stored paddy rice; corn field soil.

Taiwan, USA, Hawaii, Brazil.


Tzean, SS et al. 1990.


S. S. Tzean and J. L. Chen

 Note: A. penicillioides is most closely related to A. restrictus. Both species grow and sporulate poorly on CZ or MEA and have little or no value for diagnosis and identification purpose. A. penicillioides in having colonies with entire margin on M40Y, phialides cover-ing 3/4 the surface of the vesicle, conidial initial subglobose, mature globose to subglobose differs from A. restrictus, which having irregular colony margin on M40Y, phialides covering 2/5 of the vesicle, conidial initial cylindrical, when mature, mostly doliiform to ellipsoidal.