. Plants and their uses; an introduction to botany . V^-i »^j^ Fig. —Cord-moss. A. tip of a fonialo gamotophytc out vcrtifally toshow the fonialc Kaniotangia (archoKoiiia) surroiuulccl by pscudo-lpavcs(h), »,. B, an archcRonium showing tlu- swollen lower part (h) con-taining an unfertilized egg-cell, the neck (/)) with its orifice (m) stillclosed and the axial row of cells being converted into mucilage, *,, orifice of an archegonium after fertilization, with its ccll-wallacolored dark red, sji*. (Sachs.) Fig. 354.— A, embryo of sporophyto (/, /) still within the arche-gonium

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. Plants and their uses; an introduction to botany . V^-i »^j^ Fig. —Cord-moss. A. tip of a fonialo gamotophytc out vcrtifally toshow the fonialc Kaniotangia (archoKoiiia) surroiuulccl by pscudo-lpavcs(h), »,. B, an archcRonium showing tlu- swollen lower part (h) con-taining an unfertilized egg-cell, the neck (/)) with its orifice (m) stillclosed and the axial row of cells being converted into mucilage, *,, orifice of an archegonium after fertilization, with its ccll-wallacolored dark red, sji*. (Sachs.) Fig. 354.— A, embryo of sporophyto (/, /) still within the arche-gonium (b, h), cut vertically, h, being the neck, l^. B, C, more ad-vanced stages in the dr-velopment of the sporophyte (/) ctnered by theold archegonium or calyptra (c) upon wliich the neck (/() still remains,i. (Sachs.) to manufacture a large part of its own food while the latter is likethe sporophytes of Riccia and Marchantia in being entirely para-sitic upon the gametophyte. Inorganic materials absorbed by theslender pseudo-roots of the gametop

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbotany, bookyear1913