THE ONTOGENY OF THE APOTHECIA OF PYRONEMA DOMESTICUM

Publisher Website
Google Scholar
Abstract
Moore, Elizabeth J. (Cornell U., Ithaca, N. Y.) The ontogeny of the apothecia of Pyronema domesticum. Amer. Jour. Bot. 50(1) : 37–44. Illus. 1963.—A single hyphal strand produces a cluster of antheridia and ascogonia, each pair of like or unlike sexual differentiation. Each cluster forms 1 apothecium. Plasmogamy is followed by nuclear migration from the antheridium, and an ascogenous system develops from each ascogonium. Concurrently, a sterile system of hyphae arises from the stalk cells supporting the ascogonia and antheridia. Apothecial expansion occurs as a result of the continuous proliferation of all structural elements. Comparisons are made with the closely related and easily confused P. omphalodes (= P. confluens).