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Clonostachys rosea

When growing on agar media, Clonostachys rosea (formerly Gliocladium roseum) exhibits two types of conidiophore morphologies.    Early in the growth phase a Verticillium-like anamorph dominates where elongate , tapering, conidiogenous cells are produced in whorls along the length of  an erect conidophore axis.  In older cultures the morphology of the reproductive apparatus changes and a Gliocladium-like anamorph is produced.   Here, the conidiogenous cells are short and clustered and the main axis branches at the apex in a penicillate arrangement.    In both types the spores slime down to form a ball or mass at the apex of the conidiogenous cell(s).