新疆驼绒藜属(藜科)一些新分类群  

New Taxon of Krascheninnikovia(Chenopodiaceae) from Xinjiang China

作　　者：李柱[1] 杨刚[1] 付爱良[1] 沙吾列[1] 郑晓红[1] 

机构地区：[1]新疆畜牧科学院草原研究所,乌鲁木齐830000

出　　处：《植物研究》2008年第2期138-142,共5页Bulletin of Botanical Research

摘　　要：报道了产于新疆的驼绒藜(Krascheninnikovia ceratoides(L)Guedenst)2个新变种及昆仑山驼绒藜(K.compacta(Losinsk.)Grub.)1个新变种:叶城驼绒藜(K.compacta var.yechengensis A L Fu.f.nov.)。每一新分类群均有插图。荒漠驼绒藜(Krascheninnikovia ceraroides var.deserticola(Losinsk.)G.Yang comb.nova)主要生于平原荒漠或低山区,常在下部分枝,形成垫状灌丛,叶片狭窄,披针形、狭椭圆形、狭长圆形,两面均被细绒毛。因而两面同色;草原驼绒藜(K.ceratoides var.pratensis(Losinsk.)Z Li comb.nova)主要生在山地草原,分枝也多在上部,叶上面无毛,下面疏毛,因而两面不同色;叶城驼绒藜(K.compacta var.yechengensis A L Fu var.nov.)的叶片跟博乐驼绒藜(变型)很近似,但雌花苞片为淡绿色,分离部分远长于连合部分,而甚易区别,也仅见于叶城昆仑山。The paper reported two new varieties, five new forma of Krascheninnikovia ceratoides （L） Guedenst and one new variety of K. compacta var. yechengensis f. nov. A L F. in K. compacta （ Losinsk） Grub family, all of them are native species in Xinjiang. Every new classified group are marked by illustration. Krascheninnikovia ceratoides var. deserticola （Losinsk） G. Yang Comb. nova mainly grow in plain desert or lower mountain area. Often branched at the lower paRt of stem, form a cushiony shrub, leaf in shape of narrow, needles like, elliptoid and long round, hair on both side of the leaf so it shows the same color. Krascheninnikovia ceratoides var. pratensis （Losinsk） G. Yang Comb. nova mainly distributed in the mountain rangeland. Branched at the upside of the stem, no hair at the face side of the leaf and little hair at the otherside, so the two sideS of the leaf show the different color. The leaf of K. compacta var. yechengensis A L F. var. nov. looks same with, but bract of pistillate flower is in light green, and the separation part is longer than connection. So it is very easy to be distinguished. It can be fond in Kunlun Mountain of Yecheng County only.

关 键 词：驼绒藜属 博乐荒漠驼绒藜 长苞草原驼绒藜 叶城驼绒藜 新变种 

分 类 号：Q949[生物学—植物学]