[目的]通过野外调查,探明陕西米仓山自然保护区的植物资源,为陕西省植物区系研究提供理论基础,对陕西省植物资源保护与利用具有重要意义.[方法]笔者通过查阅文献和馆藏标本比对明确陕西省1个新记录属和4种新记录植物.[结果]确定陕西省维管植物小二仙草科1个新记录属——小二仙草属(Gonocarpus Thun-berg)及其新记录种小二仙草(Gonocarpus micranthus Thunberg);此外还发现3种新记录植物,分别是荚蒾科(Viburnaceae)的蓝黑果荚蒾(Viburnum atrocyaneum C.B.Clarke)、菊科(Asteraceae)的小花金挖耳(Carpesium minus Hemsley)、卫矛科(Celastraceae)的垂丝卫矛(Euonymus oxyphyllus Miquel).[结论]此次报道对完善陕西维管植物记录具有重要意义,凭证标本存于西北农林科技大学植物标本馆(WUK).
One newly recorded genus and four newly recorded plants in Shaanxi Province
[Objective]Plant resources of the Micang Mountain Nature Reserve in Shaanxi Province were identified through field survey.This investigation provided a theoretical basis for the study of the flora of Shaanxi Province,and was of great significance for the protection and utilization of plant resources in Shaanxi Province.[Methods]One newly recorded genus and four newly recorded plants in Shaanxi Prov-ince were determined by consulting the literature and comparing the specimens in collections.[Results]One newly recorded genus of the vascular plants,Gonocarpus Thunberg,and its newly recorded species Gonocarpus micranthus Thunberg in Shaanxi Province were determined.In addition,three newly recorded plants were found,including Viburnum atrocyaneum C.B.Clarke(Viburnaceae),Carpesium minus Hemsley(Asteraceae),and Euonymus oxyphyllus Miquel(Celastraceae).[Conclusion]This study im-proves the records of vascular plants in Shaanxi province.The voucher specimens are stored in the herbari-um of Northwest A&F University(WUK).
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