新疆3种外来禾本科新植物  

Three new exotic gramineous plants in Xinjiang

作　　者：潘成南 马占仓 王超 吴星月 宋文丹 阎平[1] PAN Chengnan;MA Zhancang;WANG Chao;WU Xingyue;SONG Wendan;YAN Ping(College of Life Sciences,Shihezi University,Shihezi,Xinjiang 832003,China)

机构地区：[1]石河子大学生命科学学院,新疆石河子832003

出　　处：《石河子大学学报（自然科学版）》2023年第2期229-236,共8页Journal of Shihezi University(Natural Science)

基　　金：国家自然科学基金项目(31870191);新疆生产建设兵团农业外来入侵物种普查(兵农科发[2021]139号)。

摘　　要：近几年本团队通过对北疆东疆杂草的野外实地调查,利用《中国植物志》等相关资料和形态分类学研究,在克拉玛依、阿拉山口、昌吉、塔城和哈密等地区发现3种禾本科外来杂草新记录。本研究发现新疆3个禾本科新记录种:虮子草(Leptochloa panicea(Retz.)Ohwi)、倒刺狗尾草(Setaria verticillata(L.)Beauv.)和芒颖大麦草(Hordeum jubatum L.),以及1个新记录属——千金子属(Leptochloa P.Beauv.)。虮子草目前仅在哈密市伊州区被发现有小范围居群;倒刺狗尾草目前在哈密市伊州区、红星市、胡杨河市等地均有分布;而芒颖大麦草现已广泛分布于哈密市的巴里坤县、伊吾县,阿拉山口市、克拉玛依市和昌吉市等地。这些新记录植物的发现对新疆禾本科植物区系和物种多样性研究具有重要意义,也为该新记录属种的地理分布研究、入侵杂草的扩散与有效监控提供了重要依据和新资料。新记录种凭证标本保存于石河子大学植物标本馆(SHI)。Recently,our field investigations have resulted in identifying three new gramineous exotic weeds in Karamay,Alashankou,Changji,Tacheng,and Hami.The weed field investigations focused in the north and east of Xinjiang.Our investigations relied on relevant data,such as Flora of China and morphological taxonomic research.In this study,we discuss three new Gramineae identified in Xinjiang:Leptochloa panicea(Retz.)Ohwi,Setaria verticillata(L.)Beauv.,Hordeum jubatum L.,and a Leptochloa P.Beauv.genus.Presently,a small population of Leptochloa panicea exists in the Yizhou district of Hami city.Setaria verticillata is currently distributed in the Yizhou district of Hami city,Hongxing city,Huyanghe city,and other places.Hordeum jubatum is now widely distributed in Balikun county and Yiwu county of Hami city,Alashankou city,Karamay city,Changji city,and other places.The discovery of these new infestations is of great significance to the study of gramineous plants flora and species diversity in Xinjiang.The new records provide an important base for research into the geographical distribution of new infestations of gramineous genera and species with dispersal data and effective monitoring of invasive weeds.Sample specimens are preserved in the Herbarium of Shihezi University(SHI).

关 键 词：禾本科 外来杂草 新记录属 新记录种 新疆 

分 类 号：Q949[生物学—植物学]