. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 179 structure at the base of the stem or a ring-like fragment on the upper part of the stem. The gills are then exposed to the air and are ready to shed their spores. If the cap of such gill fungi be cut ofif, placed on paper and kept thus in a closed - >mw!E-s»!- ~. - -"-'-•^ chamber, the spores will fall in , ., • ' such numbers as to give a very V^ ' distinct map of the gills. The spores are of various colors,, white, pinkish salmon, ochre- brown, dark-purple or black, and this color difference has been used as a
. Minnesota plant diseases. Plant diseases. Minnesota Plant Diseases. 179 structure at the base of the stem or a ring-like fragment on the upper part of the stem. The gills are then exposed to the air and are ready to shed their spores. If the cap of such gill fungi be cut ofif, placed on paper and kept thus in a closed - >mw!E-s»!- ~. - -"-'-•^ chamber, the spores will fall in , ., • ' such numbers as to give a very V^ ' distinct map of the gills. The spores are of various colors,, white, pinkish salmon, ochre- brown, dark-purple or black, and this color difference has been used as a basis for a classification of the gill fungi. In some dung-inhabiting forms the gills liquify when the spores are ripe and the latter drip from the plant in an inky fluid mass. Some caps when broken exude milky fluids of dififerent col- ors : white, red or yellow. Such are known as the milk fungi. The great majority of the gill fungi are true sapro- phytes. Many are earth-in- habiting or dung-inhabiting and an enormous number are wood-dwelling forms. These contain many of the chief tim- ber-rot fungi as well as many wound-parasites. A few are The gill fungi find their chief economic importance, outside of their timber-rotting efifect, and as agents in the decay of plant debris, in the food products which they furnish to man. The commercial mushroom is a member of this group and hundreds of wild forms are ed- ible. The latter are being used more and more extensively as food by those who take the pains to hunt them up and to know them. There are likewise some fungi of this group which are. Fig. 88.—The shaggy-mane fungus. This fruiting body is in a more advanced stage of deliquescence, than that shown in Fig. 87; almost the entire cap has dripped off. A ring (annulus') is seen at the base of the stalk. Original. parasitic on other gill Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - colora
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