Morphological characterization

Identified isolates

Hyaline, grossly rugged and generally hefty walls are conidiophores apices become sub-phéric to spherical when young. One or two conidial-bearing series may be available.

A. niger

Sweet, hyaline, or tenderly brownish, conidiosphores are close to the apex. Sphere-like apples, although frequently very tiny. There are two series of conidium-carrying cells (cells and phialides that sustain them). Grows from white to blackish brown, typically colorless.

A. niger

Stolons are hyaline to nodes that can exist near a spectrum. Short, brown and occasionally missing are rhizoids. Sporangiosphores come from nodes on stolons alone or in small groups. They are dark, smooth, non-septate. Initially, white, but subsequently black, sporangia are sparkling. When dehisceous, the columellae are light-brown in

shape of an umbrella. Sporangio-sphores are longitudinally striped, yellow to pale brown, round or oval.

A. niger