君子峰鸢尾，福建鸢尾科植物一新种

Iris junzifengensis, A New Species of Iridaceae from Fujian

摘要:

描述了福建省中北部山区鸢尾科（Iridaceae）鸢尾属（Iris）一新种：君子峰鸢尾（I.junzifengensis S.P.Chen，X.Y.Chen&L.Ma），新种与蝴蝶花（I.japonica Thunb.）、台湾鸢尾（I.formosana Ohwi）相近。与蝴蝶花不同之处在于叶片宽大，叶脉明显，表面粗糙；花为顶生稀疏总状聚伞花序，分枝2~6；花大，直径5.0~7.0 cm，花被裂片边缘波状皱褶，全缘，顶端稍有凹缺；蒴果三棱状圆柱形。与台湾鸢尾不同之处在于花小，花被裂片边缘波状皱褶，全缘，顶端稍有凹缺；蒴果三棱状圆柱形。形态特征比较及分子系统发育分析均支持该新种的成立。

Abstract:

Iris junzifengensis S. P. Chen, X. Y. Chen & L. Ma, a new species of Iridaceae from Mingxi County, Fujian Province of East China, is described and illustrated here. The new species is similar to I. japonica Thunb. and I. formosana Ohwi, but is distinguished from the former by the broad leaf blades with distinct veins and rough surface, terminal sparse racemose cyme with 2-6 branches, bigger flowers that are 5.0-7.0 cm in diam, perianth with undulate margin and retuse apex, and triangular cylindrical capsule, and from the latter by smaller flowers, perianth with undulate margin and retuse apex, and triangular cylindrical capsule. The comparison of morphological characteristics and molecular phylogenetic analysis both support the establishment of the new species.