Ultrastructure of Spore Ontogeny in Species of Trichophaea (Pezizales)
Journal
International Journal of Plant Sciences
Journal Volume
157
Journal Issue
5
Pages
595-604
Date Issued
1996-09
Author(s)
Chi-Guang Wu
James W. Kimbrough
Abstract
Trichophaea (Otideaceae) is a group of small, setose, operculate discomycetes that produce smooth or ornamented guttulate spores and have apothecia without carotinoid pigments. Their relationship to species of Humaria and Tricharina has not always been clear. Recent ultrastructural studies seem to support the inclusion of the spherical-spored Sphaerosporella in Trichophaea, a traditionally ellipsoid-spored genus. In an ultrastructure study of spore development in Trichophaea abundans and Trichophaea paludosa, two patterns of spore development were found, one in T. abundans in which there is no secondary wall in mature spores and another in T. paludosa in which there is a highly ornamented secondary wall. The types of spore development in these species are compared and contrasted with those of other Otideaceae. A reexamination of the limits of Trichophaea is indicated.
Publisher
University of Chicago Press
Type
journal article