. Outlines of plant life : with special reference to form and function . Botany. Fig. 142. Fig. 143. Fig. 142.—An outline showing the formation of a spore-chain of the blue-green mold {PeniciUium g'/aucUTn). li, branch of spore-bearing: hypha, budding beneath two older spores. Across the narrow neck a partition wall is formed, tlie'spores round off, and from this wall a device, c, for loosening the spores is developed. The terminal spore is oldest. Highly magnified.—After Frank. Fig. 143.—Longitudinal-section through the edge of a gill of a mushroom iCoprinus) after spore-formation is'tomplete
. Outlines of plant life : with special reference to form and function . Botany. Fig. 142. Fig. 143. Fig. 142.—An outline showing the formation of a spore-chain of the blue-green mold {PeniciUium g'/aucUTn). li, branch of spore-bearing: hypha, budding beneath two older spores. Across the narrow neck a partition wall is formed, tlie'spores round off, and from this wall a device, c, for loosening the spores is developed. The terminal spore is oldest. Highly magnified.—After Frank. Fig. 143.—Longitudinal-section through the edge of a gill of a mushroom iCoprinus) after spore-formation is'tompleted. t, interwoven hyphae of the gill, branching to form ihe spore bed, composed of sterile branches, /, swohen branches, c, arid spore- bearing branches, b. The latter give rise to four slender branches, whose tips enlarge to form each a single spore. / and c do not produce spores. Magnified 300 diam.— After Brefeld. 270. Fructifications.—In the higher fungi whose my- celium is developed within a dead substratum many hyphae are aggregated to constitute a reproductive structure or fruc- tification, which is the only conspicuous part of the fungus. (For an account of the vegetative parts, see W 43, 47). The body of the fructification is made up of hyphae, more or less interlaced and adherent, and is of a form adapted not only to break through the substratum, but also to furnish an extensive surface for the spore-beds (fig. 143). The fructification may be irregularly lobed, sessile and gelatinous, or much branched and cylindrical or flattened; the shapes being- adapted in various ways to form an exten- sive surface on which spores may be formed (figs. 144, 145).. 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 Barnes, Charles Reid, 1858-1910. New York : Henry Holt and Company
Size: 1530px × 1633px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectbotany, bookyear1900
