. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. r, even under the snow. Infact, ferns are among the treasures of winter woods. In the spring,young people are always interested in the uncoiling heads of ferns(Fig. 61). The shaggy stipes and hard, strong rootstooks are worthattention. LXVII. MUSHROOMS AND THEIR KIND 429. The cultivated mushroom, which is alsocommon in fields in late summer and fall, isshown in Fig. 365. It is a soft, fleshy bodydestitute of woody fiber, and white or brownish incolor. It has no parts which can be likened tole
. Lessons with plants. Suggestions for seeing and interpreting some of the common forms of vegetation. r, even under the snow. Infact, ferns are among the treasures of winter woods. In the spring,young people are always interested in the uncoiling heads of ferns(Fig. 61). The shaggy stipes and hard, strong rootstooks are worthattention. LXVII. MUSHROOMS AND THEIR KIND 429. The cultivated mushroom, which is alsocommon in fields in late summer and fall, isshown in Fig. 365. It is a soft, fleshy bodydestitute of woody fiber, and white or brownish incolor. It has no parts which can be likened toleaves. It has, however, a distinct stem or stipe,and a spreading cap or pileus. Midway of thestipe, a, is a ring-like growth, or annulus. 430. If younger plants are examined (Fig. 366), j^48 ZESSOIfS WITH PLANTS it is seen that the pileus is more nearly spheri-cal, and in very young ones, as 6, Fig. 365, theannulus is not present. The margin of the pileusis tied to the stipe by a very thin and delicateveil, and as the pileus expands this veil is rup-tured, a part of it persisting as a ragged fringe. Pig. mushroom. Fig. of mushrooms. (observe the margin of the large cap in Fig. 365)on the edge of the pileus and the remainderforming the annulus upon the stipe. 431. Upon the under side of the pileus () are numerous hanging flaps or gills. Letthe pupil determine if these gills, or lamellae, aieall of equal length, and if they are joined to thestipe. He should also observe the color of thegills, and determine if it changes with the age ofthe plant. Now let the pupil secure a pileus of MVSHBOOMS AND THEIB KIND 349 a full-grown and fresh mushroom, cut off thestipe even with the lower edges of the gills, andthen lay the cap, bottom down, on a piece ofwhite paper in a dry room, and cover it with abowl or bell-jar to protect it from currents ofair. In a few hours, or a day, carefully lift thecap. The pupil will find a copious deposit ofdust, in the form of
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Keywords: ., bookauthorbai, bookcentury1900, bookdecade1900, booksubjectbotany
