DIY History | Transcribe | Scholarship at Iowa | A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886 | A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886, Page 14

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A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886

A brief description of nine species of Hepaticae found in the vicinity of Iowa City by Mary F. Linder, 1886, Page 14

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[page]12[/page] a central group of cells of the outer layer separated from teh underlying tissue producing a broad intercellular space, giving rise, by vertical division, to papillae which soon develop and form the antheridia. PL.I. figs. 2. & 3.b. The thin layer of cells arching over them is broken through by the growing bright-orange colored arctheridia, which when ripe, rupture at the apex and allow the minute spermatozoids to escape. The archeonia are formed in a manner very different from that of all other Hepatical. The apical cell of the shoot divides and forms a row of cells perpendicular to the surface. PL.II. fig. 2. These become filled with protoplasm. Soon the lowest cell of the row swells and becomes