. A handbook of cryptogamic botany. Cryptogams. ASCOMYCETES 36s the traces may be seen, and by the time of maturity even the ascus-walls disappear and the perithece contains little but ripe ascospores. When the ascospore germinates it produces a mycele, on which there shortly arise upright sporophores with round swollen apices bearing â numerous short sterigmata over the surface. On the sterigmata chains of acrospores are formed successively, which, proceeding radially from the. Fig. 304.âEiirjtium repens de By. A, branch of mycele with sporophore, c, and sterigmata. st; early stage of carpogo
. A handbook of cryptogamic botany. Cryptogams. ASCOMYCETES 36s the traces may be seen, and by the time of maturity even the ascus-walls disappear and the perithece contains little but ripe ascospores. When the ascospore germinates it produces a mycele, on which there shortly arise upright sporophores with round swollen apices bearing â numerous short sterigmata over the surface. On the sterigmata chains of acrospores are formed successively, which, proceeding radially from the. Fig. 304.âEiirjtium repens de By. A, branch of mycele with sporophore, c, and sterigmata. st; early stage of carpogone at as. B: spirally twisted carpogone, as, antherid. p, and an envelope- hypha. C, older state with more envelope-hyphEe. _ Z), young sporocarp. E and F, young spo- rocarps in optical longitudinal section. In E the inner wall is beginning to be formed ; 70, the outer wall; f^ the nner wall and other cells filling space between it and carpogone. G, ascus with spores. //, ascospore of .£". herbarioruvt Lk. (A x igo, the others x 600.) (After de Bary.) appx of the sporophore, surround it with a globular mass of acrospores. The course of development is the same here as in the Erysiphese, and generation after generation of acrospores is usually formed in succession without the myceles attaining to the formation again of the sporocarp â this being the result of the external conditions of life of the 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 Bennett, Alfred W. (Alfred William), 1833-1902; Murray, George Robert Milne, 1858-. London, New York, Longmans, Green, and Co.
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Keywords: ., bookcentury1800, bookdecade1880, bookpublisherlondonnewyorklongm
