adv. Bot. [f. prec. + -LY2.] In the manner of an epiphyte.

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1854.  Hooker, Himal. Jrnls., I. i. 22. On which a species of grass grew epiphytically.

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1875.  Griffith & Henfrey, Microsc. Dict., s.v. Calicium, Growing … epiphytically on other Lichens.

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