组1. 冠萼组 Sect. Aria Pers. Syn. Pl. 2: 38. 1807. ——Hahnia Medic. Gesch. Bot. 81. 1793. ——Pyrus sect. Aria DC. Prodr. 2: 635. 1825.——Pyrus sect. Torminaria DC. op. cit. 636. 1825. ——Sorbus sect. Cormoaria Zabel in Beiss. & al. Handb. Laubh. -Ben. 197. 1903. nom. subnud.; Schneid. Ill. Handb. Laubh. 1: 683. 1906.——Sorbus sect. Hahnia Schneid. Ill. Handb. Laubh. 1: 684. 1906; Zinserl. in Fl. URSS 9: 372. 387. 1939 “subgen.”.