# Περὶ φυτῶν αἰτιῶν 1.18.1

Theophrastus, Περὶ φυτῶν αἰτιῶν, Book 1, Chapter 18. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theophrastus/text-2/1.18.1

Ἐν τῷ αὐτῷ δέ πως γένει τῆς αἰτίας ἐστὶ καὶ τὸ μὴ τὴν ἀρίστην καὶ πίειραν καὶ βαθύγειον ἀρίστην εἶναι τοῖς δένδροις ἀλλὰ τὴν δευτέραν, τῷ δὲ σίτῳ ἐκείνην. ἐν μὲν γὰρ τῇ ἀρίστῃ κατὰ βάθους ἰούσης τῆς ῥίζης καὶ τῆς χώρας εὐτραφοῦς πλείω τῆς συμμέτρου τροφὴν ἐπισπῶνται, ἐν δὲ τῇ λεπτογείῳ καὶ μὴ βαθείᾳ τὰς ῥίζας ἀναγκαῖον ἐπιπολαιοτέρας εἶναι καὶ τροφὴν ἐλάττω καὶ σύμμετρον· ἐπεὶ καὶ ἐν ταῖς ψαφαραῖς καὶ ταῖς πετρώδεσι δύνανται λαμβάνειν ἱκανὴν καθιέντα καὶ βιαζόμενα ταῖς ῥίζαις, ἔτι δὲ καὶ καταψύχειν τὰς ῥίζας ἥ γε πετρώδης δοκεῖ μᾶλλον ὅπερ ἐπιζητεῖ τὰ δένδρα.

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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/.