. College botany; structure, physiology and economics of plants. Botany. 286 COLLEGE BOTANY The Autohasidiomycetes are the true Basidiomycetes and are known as the fleshy fungi. Some of the most important families are the Agaricacece, the Hydnaceace, the Polyporacece and the LycoperdacecB. The first of these families may be illustrated by almost any common mushroom of the genus Agaricus. The Agaricacew (Fig. 136) or co'mmon mushrooms and toad- stools are well known. The most common type has a atipe or. Fig. 136.—Two specimens of mushrooms. The one on the left shows the annulus or ring. stem an
. College botany; structure, physiology and economics of plants. Botany. 286 COLLEGE BOTANY The Autohasidiomycetes are the true Basidiomycetes and are known as the fleshy fungi. Some of the most important families are the Agaricacece, the Hydnaceace, the Polyporacece and the LycoperdacecB. The first of these families may be illustrated by almost any common mushroom of the genus Agaricus. The Agaricacew (Fig. 136) or co'mmon mushrooms and toad- stools are well known. The most common type has a atipe or. Fig. 136.—Two specimens of mushrooms. The one on the left shows the annulus or ring. stem and a pileius or cap bearing the lamellse or gills. They arise from a button which is produced from a mycelial growth that may have been in existence for a long time. The button persistsi in many species as a volva or cup. When in the button stage the edge of the pileus it attached to the stipe by a membrane known as the velum. If it clings to the stipe it is known as the annulus or ring. The basidia are borne on the surface of the gills and usually bear four spores 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 Cook, Melville Thurston, 1869-1952. Philadelphia and London, J. B. Lippincott Company
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