A new species of Lysimachia (Myrsinaceae) from Dabieshan Mountain, China

摘要

A new species of Myrsinaceae, Lysimachia jinzhaiensis S.B. Zhou & K. Liu, is described and illustrated from Dabieshan mountain, Anhui, China. It is similar to L. christiniae in the prostrate stem, opposite leaves, yellow flowers born singly in leaf axils, but differs by being glabrous throughout or glandular on young parts, and having quadrangular stem, corolla with densely transparent glandular, orange-red corolla base with lobes being significantly overlapping and contorting to left in bud. Moreover, L. jinzhaiensis have a different karyotype, formulated as 2n = 2m + 2sm + 10st (2SAT) + 10t