. Fungi; their nature and uses. Fungi. THE SPORE AND ITS DISSEMINATION. 135 posed, in which the sporidium (as in Perisporium vulgare) consists of four coloured ovate joints, which ultimately separate. Multiseptate fenestrate sporidia are not uncommon in Oueurhi- m f Pio. 75.—Sporidia of Fio. 76.—Spori- Fia. 77 Valsa taltola. x 400. dium of Sporormia intermedia. taria and Pleospora, as well as in Valsa fenestrata and some other species. In the North American Sphwria putaminum the sporidia are extraordinarily large. The dissemination of the sporidia may, from identity of structure in the perithe
. Fungi; their nature and uses. Fungi. THE SPORE AND ITS DISSEMINATION. 135 posed, in which the sporidium (as in Perisporium vulgare) consists of four coloured ovate joints, which ultimately separate. Multiseptate fenestrate sporidia are not uncommon in Oueurhi- m f Pio. 75.—Sporidia of Fio. 76.—Spori- Fia. 77 Valsa taltola. x 400. dium of Sporormia intermedia. taria and Pleospora, as well as in Valsa fenestrata and some other species. In the North American Sphwria putaminum the sporidia are extraordinarily large. The dissemination of the sporidia may, from identity of structure in the perithecium, be deemed to follow alike method in all. When mature, they are in a great measure expelled from the mouth of the perithecia, as is evident in species with large dark sporidia, such as exist in the genera Hypoxylon, Melanconis, and Massaria. In these genera the sporidia, on maturity, may be observed blackening the matrix round the mouths of the perithecia. As moisture has an evident effect in producing an expul. FtG. 78.—Sporidium of SpJaxria pvtaminum. x 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 Cooke, M. C. (Mordecai Cubitt), b. 1825; Berkeley, M. J. (Miles Joseph), 1803-1889, ed. New York, D. Appleton and Co.
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