# Περὶ φυτῶν αἰτιῶν 5.18.1

Theophrastus, Περὶ φυτῶν αἰτιῶν, Book 5, Chapter 18. Ancient Greek.

Canonical: https://interlinea.aeterna-institute.org/library/greek/theophrastus/text-2/5.18.1

Φθοραὶ δὲ καὶ τῶν σπερμάτων εἰσί τινες τῶν μὴ κατὰ φύσιν σπειρομένων ὁμοίως τῶν τε δενδρικῶν καὶ τῶν σιτηρῶν καὶ τῶν ἄλλων· ὧν καὶ χρόνοι τινές εἰσιν ὡρισμένοι· πάντα γὰρ ζῇ μέχρι τινὸς εἶτ᾽ ἀπόλλυται· ζῆν δὲ λέγω δυνάμει· φθείρονται δὲ φυσικῶς ἀποξηραινόμενα καὶ ὥσπερ διαπνεούσης ἅμα τῆς θερμότητος καὶ ὑγρότητος· αἱ δὲ ἄλλαι πᾶσαι παρὰ φύσιν οἷον ὅσα θηριοῦται καὶ ἀνυγραίνεται καὶ ἄλλως πως ἐξίσταται·

---

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/.