. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—HYMENOMyCETES. 303 the hymenium in Coprinus, while maturing and when mature, is covered with irregularly 3-5 angled prismatic almost isodiametric cells of uniform height aiid with pellucid contents. The much narrower basidia are inserted without interruption between the comers of these paraphyses-cells, alternating therefore with them, and it is only rarely that the corners of two paraphyses meet together (Fig. 139). Other formations occ
. Comparative morphology and biology of the fungi, mycetozoa and bacteria . Plant morphology; Fungi; Myxomycetes; Bacteriology. CHAPTER V.—COMPARATIVE REVIEW.—HYMENOMyCETES. 303 the hymenium in Coprinus, while maturing and when mature, is covered with irregularly 3-5 angled prismatic almost isodiametric cells of uniform height aiid with pellucid contents. The much narrower basidia are inserted without interruption between the comers of these paraphyses-cells, alternating therefore with them, and it is only rarely that the corners of two paraphyses meet together (Fig. 139). Other formations occur not unfrequently, different from these paraphyses-forms and in certain cases at least close beside them, which are generally distinguished from them by the circumstance that they stand out as large unicellular structures far above all others on the hymenial surface. As they are often inflated in appearance in the fleshy species L^veill^ named them cystidia; Phoebus called them specially paraphyses. The cystidia according to present accounts have been found in species of all the groups except the Tremellineae, Clavarieae, and Hydneae, but so distributed that their presence or absence and their relative frequency of occurrence vary according. Fig. 139. Cofriniis micaceus, Fr. a a thin loDgitudmal section through the upper surface of a lamella, the basidia distinguished by their turbidly granular contents and springing from the subhymenial cells between pellucid inflated paraphyses; p a cystidium. & surface-view of the hymenium. The intercellular space between two paraphyses to the left above appears by a mistake in the woodcut, but was not shown in the drawing from which the woodcut was taken. Magn. 393 times. to the species within narrow cycles of aflBnity. While they are wanting, for instance, in most of the non-fleshy Polypori, they are found in Polyporus igniarius and Trametes Pini; while they are abundant in most Coprini they occur rarely or not at all, according
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