. Botany for agricultural students . Botany. PUFFBALLS AND RELATED FORMS (GASTEROMYCETES) 391 A very interesting Puffball is the Earthstar (Geaster) shown in Figure 347. In this form the outer layer of the peridium splits into regular segments and these segments are hygroscopic. When the segments are wet they bend back and downward and in this way the outer layer of the peridium spreads out like a star. The inner layer of the peridium opens by an apical pore and allows the spores to escape as in other Puffballs. The Bird's Nest Fungi {Fig. 348), which are close relatives of the Puffballs, show
. Botany for agricultural students . Botany. PUFFBALLS AND RELATED FORMS (GASTEROMYCETES) 391 A very interesting Puffball is the Earthstar (Geaster) shown in Figure 347. In this form the outer layer of the peridium splits into regular segments and these segments are hygroscopic. When the segments are wet they bend back and downward and in this way the outer layer of the peridium spreads out like a star. The inner layer of the peridium opens by an apical pore and allows the spores to escape as in other Puffballs. The Bird's Nest Fungi {Fig. 348), which are close relatives of the Puffballs, show another interesting fer- ture. They are small, usu- ally less than a centimeter in height and width. They develop on twigs and sticks as well as on organic matter that is quite well decayed. One often finds them growing on the benches in greenhouses. The chambers of the gleba become. •"MlliSWrfA-. Fig. 346. — Puffballs, Lycoperdons. Three have opened at the top, thus allowing the spores produced in the in- terior to escape. X i-. 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 Martin, John N. (John Nathan), b. 1875. New York : John Wiley & Sons, Inc.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1919
