. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. CHAPTER II.—-DIFFERENTIATION OF THE TH ALIUS. —SCLEROTIA. M and some are prolonged into short irregular hairs or papillae, while in others the membrane is irregularly torn on the outer side of the cell and the exterior surface is thus rendered rough and uneven. f. The sclerotia of some Typhulae, T. phacorrhiza, T. gyrans, T. Euphorbiae, Fuckel, T. graminum, Karst., &c. have the gelatinous medulla with cartilaginous consistence of the type a, with slight differences as reg
. Comparative morphology and biology of the fungi, mycetozoa and bacteria. Fungi -- Morphology; Bacteria -- Morphology. CHAPTER II.—-DIFFERENTIATION OF THE TH ALIUS. —SCLEROTIA. M and some are prolonged into short irregular hairs or papillae, while in others the membrane is irregularly torn on the outer side of the cell and the exterior surface is thus rendered rough and uneven. f. The sclerotia of some Typhulae, T. phacorrhiza, T. gyrans, T. Euphorbiae, Fuckel, T. graminum, Karst., &c. have the gelatinous medulla with cartilaginous consistence of the type a, with slight differences as regards the thickness and firmness of their membranes in the several species. The hyphae contain a clear watery fluid which sometimes has granules sparingly distributed through it ; in T. graminum only they are densely filled with homogeneous turbid protoplasm. The rind in these species is a single layer of cells of uniform height connected by their sides without interstices, which are evidently the peripheral segments of the medullary hyphae, unlike them as they may be in structure. The cells are tabular or shortly prismatic in shape, their lateral walls often curved and sinuous ; the inner and lateral walls are slightly, the outer walls very strongly thickened in the manner of the outer wall of the epidermal cells in vascular plants, and have their outer surface smooth (Fig. 15 c) or warted (Fig. 15 a, b). The rind is thus remarkably like the firm epidermis without stomata of many vascular plants. g. In the sclerotia of Typhula variabilis, Riess, and Peziza Curreyana the structure of the rind is essentially the same as in the last type, but the white or in P. curreyana the rose-red medullary tissue is a weft of cylindrical hyphae with. FIG. 15. a and b sclerotium of Typhula phacorrhiza. a piece of a thin transverse section ; r—r rind-cells, q—q outer layers of the same, b piece of the rind flattened out, seen from the outside : at s the outside of outer layers only is se
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