. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 13. Piece of a thin transverse section FIC. 14- Thin section through a mature sclerotium of Sclerotima Sclerotiorum, throug:hasclerotiumof5t/ero/i>iM^Kftttf/ifl«a; Libert, showing the rind and adjoining medullary tissue. Magn. 375 times. ^ r the rind. Magn. 390 times. Many of the forms which belong to this group occur on the surface of the part of the plant on which they grow, others inside them in their decomposing substance. The former (Peziza tuberosa, and
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. Fig. 13. Piece of a thin transverse section FIC. 14- Thin section through a mature sclerotium of Sclerotima Sclerotiorum, throug:hasclerotiumof5t/ero/i>iM^Kftttf/ifl«a; Libert, showing the rind and adjoining medullary tissue. Magn. 375 times. ^ r the rind. Magn. 390 times. Many of the forms which belong to this group occur on the surface of the part of the plant on which they grow, others inside them in their decomposing substance. The former (Peziza tuberosa, and P. Sclerotiorum frequently) show the structure, which has been described, quite perfectly. Some of the latter, as P. Sclerotiorum, often enclose isolated dead cells or larger portions of the tissue of the part of the plants, which they inhabit, in their own substance, as Corda pointed out. The foreign bodies thus enclosed are irregularly and inconstantly distributed through the medulla, and are sometimes surrounded by a layer of dark-brown cells of the rind. The smaller sclerotia of this type, which are found growing on decaying leaves (Peziza Candolleana, Lev., P. Fuckeliana), regularly take possession of the substance of the leaf at the points where they are developed. They are weal-like swellings on the leaf, formed of the tissue-elements of the sclerotium, among which the dead elements of the leaf are interposed, though more or less displaced and separated from one another. The way in which the sclerotium takes possession of the tissue of the leaf is different in different species. The sclerotium of P. Fuckeliana for example (Fig. 19) inhabits only the parenchyma and epidermis of the leaf of the grape-vine, but sometimes it grows even over the hairs on the leaf and so appears. 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 resembl
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