A.seaweed, wrack, Il.9.7; ὄστρεια . . φῦκος ἠμφιεσμένα Alex.110.2; differing from βρύον in size, Arist.HA603a17, cf. Thphr.HP4.6.2: Ep. dat. pl. “φύκεσσι” Alcm.6: “φ. θαλάσσιον οὖλον” orchella-weed, Roccella tinctoria, Dsc.4.99; called φ. πόντιον in Thphr.HP4.6.4; “φ. θ. πλατύ” peacock's tail, Padina mediterranea, Dsc. l. c.; φ. ὑπόμηκες και᾽ ὑποφοινικίζον Nitrophyllum punctatum, ibid.; “φ. ὅμοιον τῇ ἀγρώστει” mattress grass-weed, Zostera marina, Thphr.HP4.6.6; φ. πλατύφυλλον, = πράσον 2, ib. 2; φ. τριχόφυλλον ὥσπερ τὸ μάραθον, Cystoseira foeniculosa, ib.3.
2. sedge or weed growing in a lake, Nic.Al.576.
II. orchil, prepared from “φῦκος” 1.1 and used as rouge by Greek women, Ar.Fr.320.5, Theoc.15.16, IG5(1).1390.22 (Andania, i B. C.), Alciphr.1.33.
III. = φυκίς, Gloss.