. Botany for high schools and colleges. Botany. 3^6 BOTANY. Puff-balls, of which the best known is L. giganteum, the Giant Puff- ball, an edible species, from ten to thirty cm. in diameter ; Oeaster, the Earth-stars, including several species, and Crucibuium, of which G. Dulgare is very common. (b) This order presents no unusual difficulties to the student, and it is one whicli should receive more attention than it has hith- erto. For the study of the structure the speci- mens should be taken in their earlier stages, as but little can be made out after the hyphae begin breaking up or dissolvin
. Botany for high schools and colleges. Botany. 3^6 BOTANY. Puff-balls, of which the best known is L. giganteum, the Giant Puff- ball, an edible species, from ten to thirty cm. in diameter ; Oeaster, the Earth-stars, including several species, and Crucibuium, of which G. Dulgare is very common. (b) This order presents no unusual difficulties to the student, and it is one whicli should receive more attention than it has hith- erto. For the study of the structure the speci- mens should be taken in their earlier stages, as but little can be made out after the hyphae begin breaking up or dissolving. 424. — Order Hy- menomycetes. These plants are doubtless to be regarded as the highest of the chlo- rophyll - free Carpo- sporeae. They are not only of considerable size (ranging from one to twenty centimetres, or more, in height), but they present a structural complexity which is so much greater than that of Fig. 225.—Development of Agaricus campesfris. the other Orders, that A, underground mycelium (m), bearing numerous , x i x i yonng sporocarps of various sizes. /., vertical sec- tllCy CaUUOt DUt DC rC- tion of a young sporocarp, showing its attachment -, t ,-, i • i ; to the mycelium, m. //., vertical section of an gardeO. aS the highest older sporocarp, showing the annular opening,^. p ii ^ -P,-,^^^ T ;u^ ///., the ^ame at a sull later stage. IV., youngsporo- ^I i^lie lUngl. IjlKe carp, with stalk (st); rudimentary gills (/), and the ii r!-ciofprnTnvppfp«5 beginning of the veil («). F., sporocarp near v ma- ^^^^ vj-dy&LeiumjutJLeto, ture ; m, mycelium; A, pilens ; I, the gills (hyme- f]^py Drodnce an abun- niallamellEe); v, the veil, not yet ruptured; i, a very ^^^^J P^^^"-lce an auun young sporocarp. All natural size.—After Sachs. dant myCClium under- ground, or in the substance of decaying wood; it fre- quently consists of multitudes of whitish jointed hyphae, which are loosely interwoven, but in some cases chey be-. Please note that these images a
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