consedere, ‘are set,’ ‘are in session,’ an almost technical term, as is also surgit. Cf. XI. 157, XII. 622, Cic. pro Rosc. Amer. I. § 1, “Credo ego vos, iudices, mirari, quid sit quod, cum tot summi oratores hominesque nobilissimi sedeant, ego potissimum surrexerim.”
corona, the throng of listeners and spectators, our ‘ring.’ Cf. Hor. Epp. I. xviii. 53, “scis quo clamore coronae proelia sustineas campestria”, id. A. P. 381, “ne spissae risum tollant impune coronae.”