The Ovulariopsis anamorph of Phyllactinia bauhiniae var. cassiae: first record outside India and morphological characterization

Kirschner R. & Chen C.-J. (2008) The Ovulariopsis anamorph of Phyllactinia bauhiniae var. cassiae: first record outside India and morphological characterization.

Sydowia 60 (1): 57-67

Based on an own collection from Cassia fistula in Taiwan and type specimens of Oidium cassiae-siameae and the Ovulariopsis anamorph of Phyllactinia bauhiniae var. cassiae (Ascomycota, Erysiphales), the latter is characterized in detail and recorded outside India for the first time. The conidiophores and conidia of Oidium cassiae-siameae have similar shapes, sizes and ornamentations as those of the anamorph of Phyllactinia bauhiniae var. cassiae, but both species differ by the presence of endophytic hyphae with haustoria formed in mesophyll cells in the latter species and their absence in the former. Different preparation techniques for light microscopy are compared.

Keywords: Fabaceae, Leguminosae, plant pathogenic fungi, powdery mildews