. Botany for high schools and colleges. Botany. 326 BOTANT. Puff-balls, of wliicU 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 Grueibulum, of which 0. mdgare is very common. \^- (J) This order presents ^v no unusual difficulties to ^^^il^A\ , X the student, and it is one which should receive more attention than it has hith- erto. For the study of the structure the speci- mens should be taken in their earlier s-tages, as but little can be made out after the hyphae begin brea
. Botany for high schools and colleges. Botany. 326 BOTANT. Puff-balls, of wliicU 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 Grueibulum, of which 0. mdgare is very common. \^- (J) This order presents ^v no unusual difficulties to ^^^il^A\ , X the student, and it is one which should receive more attention than it has hith- erto. For the study of the structure the speci- mens should be taken in their earlier s-tages, 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- sporess. 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 Tig. 225.—Development of Agaricus campestris. the Other orders, that A, underground mycelium (m), bearing numerous , x i, i. i young sporocarps of various sizes. /., vertical sec- they Cannot DUt DC re- tion of a young sporocarp, showing its attachment -, t ,, i • i , to the mycelium, m. //., verticaF section of an garded aS the highest older sporocarp, showing the annular opening, «. » .n f,,„m T il-a ///., ihe same at a still later , young sporo- "-'J- ^nt) iungi. uiJve carp, with stalk (at); rudimentary gills ((), and the j-n,„ flo otornrmrpo+oa beginning of the veil («). K, sporocarp near y ma- ''"^ vjaauBiuuiyueues, ture ; m, mycelium ; h, pileus ; I, the gills (hyme- f>ipv nrnd iipp an nbnn- nial lamelliE); v, the veil, not yet rupturld; i, a very ^^^^ prOQUCe an aoun young sporocarp. All natural size.—After Sachs. dant mycelium under- ground, or in the substance of decaying wood; it fre- quently consists of multitudes of whitish jointed hyphae, which are loosely interwoTen, but in some cases they be-. Plea
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectbotany, bookyear1888
