a. and sb. [f. L. ALGA + -AL.]

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  A.  adj. Of the nature of an alga or sea-weed. Algal alliance: Lindley’s lowest division of the Thallogens, containing the sea-weeds and their allies.

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1846.  Lindley, Veg. Kingd., 8. The near approach of the two realms being through the Algal alliance.

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1862.  H. Macmillan, in Macm. Mag., Oct., 465. Merely an algal condition of the common mould.

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1866.  R. Tate, Brit. Mollusks, iv. 185. By clearing off the algal growth.

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  B.  sb. A plant of the algal alliance; an ally of the algæ.

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1848.  Lindley, Introd. Bot., II. 122. The mode of propagation in Algals is extremely variable.

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1854.  Balfour, in Encycl. Brit., V. 69. In many Algals the cellular spores are surrounded by cilia.

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