. First forms of vegetation. Botany; Cryptogams. 3i8 FISST FORMS OF VEGETATION. matrix in which they are developed, in the form of a minute collection of dust, entirely destitute of any covering or receptacle, except that which is furnished by the skin of the plant raised around them. This class is the most destructive of the whole tribe. Smut, bunt, and rust, are too fa miliar examples of this most notorious class. The fourth order is called Hyphomycetes or web-like fungi, because the spores are free, developed on naked filaments whose ter- minal cells are often trans- formed into a series of
. First forms of vegetation. Botany; Cryptogams. 3i8 FISST FORMS OF VEGETATION. matrix in which they are developed, in the form of a minute collection of dust, entirely destitute of any covering or receptacle, except that which is furnished by the skin of the plant raised around them. This class is the most destructive of the whole tribe. Smut, bunt, and rust, are too fa miliar examples of this most notorious class. The fourth order is called Hyphomycetes or web-like fungi, because the spores are free, developed on naked filaments whose ter- minal cells are often trans- formed into a series of spores like a row of beads. The general appearance of the plants belonging to this order is that of a quantity of dust- like seeds imbedded in a flaky cottony substance, like a spider's web. The different Fig. 31.—Stemonitis fusca. kinds of common mould, (o) Group of natural size. (i) A single mdwiduai magni- bluc, ycllow, and green, the potato-disease, caterpillar and silkworm blights, and various kinds of mildew, are common exam- ples of this order. The limits of the genera and species belonging to the orders Coniomycetes and. 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 Macmillan, Hugh, 1833-1903; Macmillan, Hugh, 1833-1903. Footnotes from the page of nature. London, Macmillan
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1874
