Colletotrichum spaethianum

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Colletotrichum spaethianum (Allesch.) Damm, P.F. Cannon & Crous 2009

This fungus is widely distributed and infects various crops and ornamental plants. For example, it causes leaf spot and blight diseases on onions, Hemerocallis, Hosta and Lilium. It has been described and illustrated by Damm et al., 2009, who mention that it differs from closely related species by having "setae that usually have an acute tip and cylindrical to conical base and appressoria with irregular outline that are more or less lobed but not crenate". The conidia are curved, hyaline and aseptate, with a truncated base and a size of about 20–28 × 3–5 µm.