. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Geoglossuiu Fig. 91. a. Geoglossnm hirsiituin Pers., nat. size; b. Spathularia clavata Sacc, nat. size; ۥ Leotia lubrica Pers., form sHpitata, x|-; after Massee. The ascophore is erect and stipitate with the fertile portion terminal, and either club-shaped (fig. 91a, b), laterally compressed, or forming a cup or a pileus (fig. 91 c). In some of the simpler forms, as in hirs2itum, there is no clear line of demarcation between the fertile and stefile regions. The ascus con- tains eight spores and opens by the ejection of a plug. The young
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Geoglossuiu Fig. 91. a. Geoglossnm hirsiituin Pers., nat. size; b. Spathularia clavata Sacc, nat. size; ۥ Leotia lubrica Pers., form sHpitata, x|-; after Massee. The ascophore is erect and stipitate with the fertile portion terminal, and either club-shaped (fig. 91a, b), laterally compressed, or forming a cup or a pileus (fig. 91 c). In some of the simpler forms, as in hirs2itum, there is no clear line of demarcation between the fertile and stefile regions. The ascus con- tains eight spores and opens by the ejection of a plug. The young ascocarp consists of a dense tangle of vegetative filaments; in the early stages a more or less conspicuous veil has been identified in several genera (though not as yet in Geoglossum). It is composed, as in the Helvellaceae, of interwoven hyphae,derived fromand continuous with the outer layer of the fruit body. There are indications that it opens at first by a pore at the apex, but it soon breaks up into scales and dis- Fig. 92. a. 'Geoglossum hirsutism Pers., X "230; b. appears. Spathularia clavata SslCC, X400; after Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Gwynne-Vaughan, Helen Charlotte Isabella (Fraser) Dame, 1879-. Cambridge [Eng] University Press
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectfungi, bookyear1922
