. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Pig. Otidea aurantia Mass.; apotheci, nat. size. Fig. S'Z. Lachnea stercorea (Pers.) Gill.; ascocarp in longitudinal section showing young asci and para- physes, x 160. a. sheath; b. paraphyses; c. ascus; <a. ascogenous hyphae; e. oogonium ;f. stalk of archicarp. wall of the cup (fig. 52). The lower part of the cup is filled by the hypo- thecium, a tangle of hyphae, some vegetative, some ascogenous. These give rise to the sub-hymenial layer where the paraphyses have their origin and where the young asci are developed. The asci and para
. Fungi, ascomycetes, ustilaginales, uredinales. Fungi. Pig. Otidea aurantia Mass.; apotheci, nat. size. Fig. S'Z. Lachnea stercorea (Pers.) Gill.; ascocarp in longitudinal section showing young asci and para- physes, x 160. a. sheath; b. paraphyses; c. ascus; <a. ascogenous hyphae; e. oogonium ;f. stalk of archicarp. wall of the cup (fig. 52). The lower part of the cup is filled by the hypo- thecium, a tangle of hyphae, some vegetative, some ascogenous. These give rise to the sub-hymenial layer where the paraphyses have their origin and where the young asci are developed. The asci and paraphyses grow up together and rise to the surface of the ascocarp forming the hymenium or fertile disc which is spread over the interior of the cup. The asci are more or less cylindrical and parallel one to another and to the paraphyses (fig. 53). They open either by a lid (fig. 55) or by the ejection of a plug (fig. 54). They arise in succession so that large numbers may be produced in a single ascocarp. If the hypothecium is well developed the apothecial cup is full and the hymenium lies across the brim like the skin on a bowl of custard; if the development of the hypothecium is slight the hymenium spreads over. 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
