<i>Massarina walkeri</i> n.sp., the teleomorph of <i>Acrocalymma medicaginis</i> from <i>Medicago sativa</i> contrasted with <i>Leptosphaeria pratensis</i>, <i>L</i>. <i>weimeri</i> n.sp., and <i>L</i>. <i>viridella</i>

The teleomorph of Acrocalymma medicaginis Alcorn &amp; Irwin was formed in pure culture. It is described as a new species, Massarina walkeri. It is contrasted with three somewhat similar species that parasitize legumes: Leptosphaeria pratensis Saccardo &amp; Briard in Briard, Leptosphaeria weimeri n.sp. (anamorph Stagonospora meliloti (Lasch) Petrak), and L. viridella (Peck) Saccardo.

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