Passage 10.36.1
ἐς δὲ Ἄμβροσσον στάδιοι περὶ ἑξήκοντά εἰσιν ἐκ Στίρεως· πεδιὰς ἡ ὁδός, ὀρῶν ἐν μέσῳ πεδίον κείμενον. ἄμπελοι δὲ τὸ πολύ εἰσι τοῦ πεδίου, καὶ ἐν γῇ τῇ Ἀμβροσσέων οὐ συνεχεῖς μὲν ὥσπερ αἱ ἄμπελοι, πεφύκασι μέντοι καὶ αἱ θάμνοι· τὴν δὲ θάμνον ταύτην Ἴωνες μὲν καὶ τὸ ἄλλο Ἑλληνικὸν κόκκον, Γαλάται δὲ οἱ ὑπὲρ Φρυγίας φωνῇ τῇ ἐπιχωρίῳ σφίσιν ὀνομάζουσιν ὗς. γίνεται δὲ αὕτη μέγεθος μὲν ἡ κόκκος κατὰ τὴν ῥάμνον καλουμένην, φύλλα δὲ μελάντερα μὲν καὶ μαλακώτερα ἢ ἡ σχῖνος, τὰ μέντοι ἄλλα ἐοικότα ἔχει τῇ σχίνῳ.
From Stiris to Ambrossos is about sixty stades; the road crosses a plain situated between the mountains. Most of this plain is planted with vines; and in the land of the Ambrossians, though not as continuous as the vineyards, grows also a shrub. This shrub is called "kokkos" by the Ionians and the rest of the Greeks, but the Galatians, who live beyond Phrygia, call it "hys" in their native tongue. The "kokkos" shrub is similar in size to the plant called "rhamnos"; its leaves are darker and softer than those of the mastic tree (schinos), but otherwise resemble them.