# Περὶ φυτῶν αἰτιῶν 3.17.3

Theophrastus, Περὶ φυτῶν αἰτιῶν, Book 3, Chapter 17. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theophrastus/text-2/3.17.3

δῆλον γὰρ ὡς τῇ κράσει πως σύμμετροί τε καὶ οἰκεῖοι καθ᾽ ἕκαστα τυγχάνουσιν ὥσπερ ἐπὶ τῶν ζώων· ὁ γὰρ αὐτὸς λόγος καὶ περὶ τούτων καὶ ἡ αὐτὴ ζήτησις. οὐ μὴν ἀλλ᾽ εἴ γέ τι καὶ περὶ τούτου ἴδιον χρὴ εἰπεῖν ἐν ἀμφοῖν τὴν αἰτίαν ζητητέον ἔν τε τῷ τὴν γῆν ποιάν τινα ποιεῖν καὶ ἐν τῷ τὰς ῥίζας ἅπερ ἄμφω συμβαίνει διὰ τῶν ἁλῶν· τὴν μὲν γὰρ ποιοῦσι κούφην καὶ χαύνην τὰς δὲ ῥίζας εὐτραφεστέρας καὶ παχυτέρας ἑλκτικωτέρας ποιοῦντες τῷ πόρους τινὰς ἀνοίγειν καὶ ἔτι τῷ καταψύχειν, ὅπερ ἡ κόπρος οὐ ποιεῖ διὰ τὸ ἔμπυρον.

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Theophrastus, Περὶ φυτῶν αἰτιῶν, ed. Friedrich Wimmer. Text: The Greek Library, from the Perseus Digital Library and other open sources, CC BY-SA 4.0. Changes: apostrophes normalised and the text divided into reading sections by Interlinea.
License: CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Source: https://thegreeklibrary.pages.lisn.upsaclay.fr/works/tlg0093.tlg002.local001/.