Abstract
The ultrastructural organization of the spores of the sporocarp of Endogone flammicorona was studied. Two types of organization are described. Initially the spore possessed a vacuolate protoplasm and was bound by two cell wall layers. The spore was surrounded by a hyphal mantle formed of a sheet of vacuolized hyphae with uniformly thin walls. Secondly, although the ultrastructural features of the spore appeared the same, it was now surrounded by a hyphal mantle with unevenly thickened walls (i. e., the so-called flaming crown) due to the gradual and irregular deposition of granules and lamellae. This crown gives the spore its most commonly observed morphological feature and is the preminent character employed taxonomically to speciate Endogone flammicorona Trappe & Gerdemann.
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Bonfante-Fasolo, P., Scannerini, S. The ultrastructure of the zygospore in Endogone flammicorona Trappe & Gerdemann. Mycopathologia 59, 117–123 (1976). https://doi.org/10.1007/BF00493564
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DOI: https://doi.org/10.1007/BF00493564