. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. THE FRUCTIFICATION 43 Hymenomycetes, and that it is scarcely probable that sexuality exists. The contents of the closed receptacle of the second type enumerated in the preceding chapter—the peridium—differ in some features from the foregoing, although they accord in the spores being produced upon basidia. In this case there is no effused and exposed hymenium, but the interior of the peridium is occupied and filled with the gleba, or entire reproductive mass, which is at
. Introduction to the study of fungi; their organography, classification, and distribution, for the use of collectors. Fungi. THE FRUCTIFICATION 43 Hymenomycetes, and that it is scarcely probable that sexuality exists. The contents of the closed receptacle of the second type enumerated in the preceding chapter—the peridium—differ in some features from the foregoing, although they accord in the spores being produced upon basidia. In this case there is no effused and exposed hymenium, but the interior of the peridium is occupied and filled with the gleba, or entire reproductive mass, which is at first homogeneous. Afterwards minute rifts are to be observed in the gleba, which increase in size, and ultimately form a labyrinth of cavities. The walls of these cavities are composed of hyphae, and the inner face is converted into a hymenium, the basidia of which are the terminations of the hyphae of the walls. These basidia are more variable than in the Hymeno- mycetes, and the number of spores not so constant (Fig. 23): in the JBymenogastreae from one to four; in the Phalloideae from four to eight; in Bovista and Lycoperdon four and terminal; but in Tulostoma four and lateral. Hence it will be observed that the spores are FlQ- 23.—B , n ,.,. .,,. ., ... , dium and spores produced on basidia, within special cavities and 0i Lycoperdon. lining the walls; but the entire mass, or gleba, is contained within a closed peridium, which is not ruptured until the spores are mature. When this takes place the entire gleba will be found in most cases (exclusive of the Phalloideae and the Nidulariacei) to be converted into a finely pulverulent mass, mixed with fine fibres. The powdery mass consists of the ripe spores, and the fine fibres are the remains of the internal hyphae, now called the eapillitium. In the Hymenogastreae, which are the subterranean Gastro- mycetes, the walls of the cavities are more persistent, and therefore there is no capillitium, and the peridium is not rup
Size: 1201px × 2081px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcookemcm, bookcentury1800, bookdecade1890, bookyear1895
