# Περὶ φυτῶν αἰτιῶν 1.13.5

Theophrastus, Περὶ φυτῶν αἰτιῶν, Book 1, Chapter 13. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theophrastus/text-2/1.13.5

δεῖ γὰρ δὴ τὴν ὥραν ὑγρότητά τινα καὶ θερμότητα ἔχειν ὥσπερ καὶ τὸ ἔαρ. αὕτη μὲν ὁμολογουμένη μάλιστα πρὸς βλάστησιν. ἐν ἀμφοῖν δὲ τοῦτο συμβαίνει καὶ ἐν τῇ τοῦ κυνὸς ἐπιτολῇ καὶ μετ᾽ ἀρκτοῦρον· ὑπὸ γὰρ αὐτὸ τὸ ἄστρον καίπερ ὄντος ἐμπύρου τοῦ ἀέρος ὅμως καὶ νότια πνεῖ καὶ νέφη συνίσταται καὶ αὐτὰ τὰ δένδρα διυγραίνεται φανερῶς καὶ ὑπὸ τὸν φλοιὸν αὐτῶν διαδίδοταί τις ὑγρότης, ὅθεν καὶ ῥοαί τισι κατὰ τοῦτον τὸν καιρὸν εἴτ᾽ οὖν συνελαυνομένου τοῦ ὑγροῦ καὶ ἀντιπεριστάσεως γινομένης εἴτε δι᾽ ἄλλην αἰτίαν·

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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/.