The elements of botany for The elements of botany for beginners and for schools elementsbotany00gray Year: 1887 554 enwrapped by tubular cells twisted around it: by the side of this is a smaller and globular antheridium. The latter breaks up into eight shield- FiG. 553. Agarum Turneri, Sea Colander (so called from the perforations with which the frond, as it grows, becomes riddled); very much reduced in size. Fio. 554. U;iper end of a Rockweed, Fucus vesiculosus, reduced half or more, b, the

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