. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. MUCOR 237 later conspicuous, dark brown or black, spherical sponmgia {sp.) appear at the ends of relatively thick upright hyphre, which in some species are branched. An ally of Miicor [Rhizopus stolonifer), that occurs very commonly on stale bread and horse dung, spreads very rapidly by hypha resembling. Fig. 125.—Mucor. a, mycelium, slightly magnified, showing two of the long-stalked sporangia (sp.) ; 6, sporangium, much enlarged, in optical section, showing the numerous spores and the central column (Co.) ;
. An introduction to the structure and reproduction of plants. Plant anatomy; Plants. MUCOR 237 later conspicuous, dark brown or black, spherical sponmgia {sp.) appear at the ends of relatively thick upright hyphre, which in some species are branched. An ally of Miicor [Rhizopus stolonifer), that occurs very commonly on stale bread and horse dung, spreads very rapidly by hypha resembling. Fig. 125.—Mucor. a, mycelium, slightly magnified, showing two of the long-stalked sporangia (sp.) ; 6, sporangium, much enlarged, in optical section, showing the numerous spores and the central column (Co.) ; c, dehisced sporangium in which only the column and a small part of the wall remains ; d and e, conjugation of gametes (g.) ; /, mature zygospore, (n, 6, and/after Brefeld ; cafter Sachs; dande after De Bary.) minute Strawberr}' runners, at the end of each of which a tuft of absorptive threads and sporangia is produced. The wall of each sporangium (Fig. 125, h) is beset with numerous minute needles of oxalate of lime, whilst the swollen end of the hypha below projects into the cavity as a central column [Co.) ; between this and the wall are many small thick- waUed spores embedded ina mucilaginous substance. The latter swells in the presence of moisture, and thus contributes to 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 Fritsch, Felix Eugene, 1879-; Salisbury, E. J. (Edward James), Sir, b. 1886. London, G. Bell and sons ltd.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpl, booksubjectplants
