Table 2.

Morphological characteristics of different species belonging to Aspergillus section Nigri.

Species	Conidial size (mm)	Vesicle size (μm)	Colour and size of sclerotia (mm)
Uniseriate species
A. aculeatinus	2.5-4.5	45-80	Found only in some strains, white to cream, 0.4-0.6
A. aculeatus	3.5-5	60-80	Found only in some strains, cream, up to 0.5
A. japonicus	3.5-5	20-35	Found only in some strains, white to cream, up to 0.5
A. uvarum	3-4	20-30	Found only in some strains, dark brown to black, 0.5-0.8
Biseriate species
A. brasiliensis	3.5-4.5	30-45	Found only in some strains, white, 1-1.5
A. carbonarius	7-9	40-80	Found only in some strains, Pink to yellow, 1.2-1.8
A. costaricaensis	3.1-4.5	40-90	Pink to grayish yellow, 1.2-1.8
A. ellipticus	3.3-5.5	75-100	Dull yellow to brown, 0.5-1.5*
A. foetidus	3.5-4.5	50-80	Found only in some strains, white, 1.2-1.8
A. heteromorphus	3.5-5	15-30	White, 0.3-0.6 (not observed by Al-Musallam 1980)
A. homomorphus	5-7	50-65	-
A. ibericus	5-7	50-60	-
A. lacticoffeatus	3.4-4.1	40-65	-
A. niger	3.5-5	45-80	-
A. piperis	2.8-3.6	40-55	Yellow to pink-brown, 0.5-0.8
A. sclerotiicarbonarius	4.8-9.5	45-90	Yellow to orange to red-brown
A. sclerotioniger	4.5-6.4	30-50	Yellow to orange to red-brown
A. tubingensis	3-5	40-80	Found only in some strains, white to pink, 0.5-0.8
A. vadensis	3-4	25-35	-

^*the sclerotioid bodies are dull yellowish when young becoming brown in age, 500-800 μm in diam, and borne within terbunate masses up to 1.0-1.5 mm.