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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 15

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[page]13.[/page] the central or germ cell, while the other cells are absorbed to form the canal of the neck, which leads to the interior. The neck is surrounded by 6 rows of cells. The spermatozoids by the medium of moisture find their way to the neck of the archegonium and to the germ cell. After fertilization, the oosphere is divided by an oblique wall, giving rise to two cells. The upper one becomes the apical cell and divides repeatedly by walls inclined to the right and left, and finally in four radiating directions becoming a multicellular body enlarged below. While this change is taking place in the unripe sporogonium, an [involucre?] is being produced by the surrounding parts of the thallus, PL. II. fig. 3. which arches upwards and through which the sporogonium
 
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