西南银莲花(毛茛科)地理分布的订正—特别基于花粉形态证据

Notes on the Geographical Range of Anemone davidii (Ranunculaceae) with Special Reference to Pollen Morphology

摘要:

通过标本检查和花粉扫描电镜观察,发现过去鉴定为西南银莲花(Anemone davidii Franch.)(毛茛科)的我国西藏东南部(墨脱)标本实际上属于三出银莲花(A. griffithii Hook. f. & Thoms.),所以以前关于西南银莲花产西藏东南部的记载是错误的。西南银莲花目前仅发现分布于我国重庆(城口、南川、武隆、巫溪、酉阳、云阳)、贵州(江口、凯里、雷山)、湖北(神农架、兴山、宣恩、竹溪)、湖南(桑植、石门、新宁)、四川(安县、宝兴、都江堰、峨边、峨眉、洪雅、金阳、筠连、雷波、马边、石棉、天全、通江、荥经)和云南(大理、墨江、维西、中甸)。

关键词:银莲花属;西南银莲花;三出银莲花;地理分布;花粉形态;毛茛科

Abstract:

Examination of herbarium specimens and pollen morphology has shown that the specimens from southeastern Xizang (Mêdog) previously identified as Anemone davidii Franch. (Ranunculaceae) actually belong to A. griffithii Hook. f. & Thoms. Previous records of the occurrence of A. davidii in southeastern Xizang are therefore not correct. This species is currently known from Chongqing (Chengkou, Nanchuan, Wulong, Wuxi, Youyang, Yunyang), Guizhou (Jiangkou, Kaili, Leishan), Hubei (Shennongjia, Xingshan, Xuanen, Zhuxi), Hunan (Sangzhi, Shimen, Xinning), Sichuan (Anxian, Baoxing, Dujiangyan, Ebian, Emei, Hongya, Jinyang, Junlian, Leibo, Mabian, Shimian, Tianquan, Tongjiang, Yingjing), and Yunnan (Dali, Mojiang, Weixi, Zhongdian), China.

Key words:Anemone;Anemone davidii;Anemone griffithii;Geographical distribution;Pollen morphology;Ranunculaceae