| Popis: |
A collection of Swampomyces armeniacus made in North Queensland, Australia, and with measurements slightly smaller than those of the type material but within the range for the species, was studied. Ultrastructural examination elucidated the nature of structures observed previously at the light microscope level and revealed features not recorded in the original description. The ascus apex is truncated with an apical amorphous thickening, and the ascospore wall comprises three layers: mesosporium; episporium; exosporium. In mature ascospores the episporium is ornamented, the exosporium is lost and a mucilaginous sheath enrobes the spore. Examination of Marinosphaera mangrovei showed that the ascospores possess a verrucose surface which is subsequently covered by a fibrillar matrix which may be involved in spore attachment. |
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