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Page number:306 
Remarks (internal):Species description based upon WB 364, received in 1909 from Professor Westerdijk as A. ficuum (Reich.) Hennings; WB 320, received in 1922 from Da Fonseca as St. pseudo-carbonaria, n.n. Bainier (not A. pseudo-carbonarius (Bainier) Mosseray, q.v.) ; WB 4785, received in 1962 from the IFO as A. batatae Saito, possibly type; and WB 4541, received from R. M. Natour in 1960 as the causative agent of a soft rot of Dracena, subsequently published (Nat our and Miller, 1960) as A. niger var. floridanus but not described.
 
Description type:Non-original description 
Description:Aspergillus ficuum (Reich.) Hennings, in Hedwigia 34: 86 (1895).
Synonyms: Ustilago ficuum Reichardt, in Verhandl. Konigl. Zool. botan. Ges., Wien, 17: 335 (1867).
Aspergillus batatae Saito, in Centr. Bakteriol. Parasitenk., Abt. II, 18: 34 (1907).
Colonies on Czapek's solution agar growing rapidly at room temperature (24-26°C), 5 to 6 cm. in diameter at 10 days to 2 weeks, plane, closely to loosely velutinous, thin white basal mycelium almost completely sub-merged, conidial structures in very dark purplish brown shades, appearing black en masse to the unaided eye, abundant and crowded throughout most of the colony but thinning at the margins to give a speckled appearance; reverse uncolored or very slightly yellow; faint ester odor; exudate inconspicuous, clear, in very small droplets. Conidial heads purple-black to brown-black, globose, sometimes remaining so but usually splitting into several well-defined columns, mostly 300 to 500 µm but up to 1 mm. in diameter; conidiophores erect or somewhat sinuous, commonly pigmented in brown shades, with walls up to 4.0 µm thick but most commonly 2 to 3 µm, variable-in length from 500 to 2 mm. but mostly 1.0 to 1.5 mm. long, diameter throughout most of their length 16 to 22 µm but reduced just be-low the vesicle to 10 to 15 µm, vesicles globose, heavy walled, commonly pigmented, variable from 25 to 75 µm in diameter but mostly 40 to 60 µm, fertile over the entire surface or with a limited area around the conidiophore devoid of sterigmata; sterigmata in two series, brownish, primaries mostly 20 to 40 µm by 6.0 to 8.0 µm but ranging from ca. 10 µm by 4.0 µm to 75 µm, by 10 µm, often in the same mount, secondaries mostly 7 to 10 µm by 3.0 to 3.5 µm, often crowded and difficult to measure; conidia globose and irregularly roughened when young, becoming horizontally flattened and longitudinally striate at maturity, spore bodies mostly 3.5 to 4.0 µm in transverse diameter with coarse striations which may extend beyond the cell wall as much as 1 µm.
Colonies on malt extract agar growing rapidly, 7 to 8 cm. in 10 days, with thin hyaline basal mycelium inconspicuous, surface smooth and closely velvety in some strains from the densely crowded conidial heads borne on stalks of uniform length, somewhat looser textured in others where less abundant conidial heads are borne on conidiophores of variable length, carbon black to the naked eye; reverse uncolored or faintly yellow with the black of conidial structures apparent through the vegetative mycelium; odor as on Czapek's agar. Conidial heads as described above but usually somewhat smaller, more quickly and uniformly split into divergent columns, and borne on somewhat shorter conidiophores.

 
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