Evaluation of Draba oligosperma, D. pectinipila, and D. juniperina complex (Cruciferae)
Evaluation of Draba oligosperma, D. pectinipila, and D. juniperina complex (Cruciferae)
复制标题
DOI：
--
复制
发表时间：
1983-07
期刊：
影响因子：
--
通讯作者：
R. Lichvar
中科院分区：
文献类型：
--
作者：
R. Lichvar
-自1953年描述Dniha Pectinipihi Rollins以来，它已被归入几个不同的分类类别。它已经在种和变种水平上被认识，也被放在D.oUGOSPemui Hook的异名中。然后，Dorn(1978)描述了D.juipenna，并将其与D.putinipila和D.为了弄清这三个分类群的状况，评估包括野外观察和标本馆观察以及扫描电子显微镜研究。一项根据《濒危物种法案》给予Draba Pectinipia Rollins保护的提案促使人们对该物种和两个密切相关的分类群进行了广泛的实地研究。Rollins(1953)描述了怀俄明州帕克县Clay Butte高山栖息地的果蝇。现在从不列颠哥伦比亚省和科罗拉多州的另外两个阿尔卑斯山地区发现了这种病毒。自从这个分类单元被描述以来，它已经被归为几个不同的分类类别。在采取进一步行动保护这些植物之前，必须重新评估其分类地位。Hitchcock(1964)给予了杜鹃品种地位。他唯一的评论是，这个变种是该物种唯一相当独特的变种。穆利根(1972)没有进行实地观察，就把它归入同义词中。然后Dorn(1978)描述了来自犹他州怀俄明州边界附近的低海拔地区的植物，Rollins(1953)在D.putinipia下提到的植物是D.juniperina。为了阐明这一种复合体的分类学，我们比较了D.putinipila和D.juniperina，并与D.
— Since Dniha pectinipihi Rollins was described in 1953, it has been assigned to several different taxonomic categories. It has be n recognized at the species and variety level and has also been placed in synonymy under D. oUgospemui Hook. Then Dorn (1978) described D. junipenna and contrasted it to D. pectinipila and D. oligosperma. To clarify the status of these three taxa, the evaluation included field and herbarium observations and scanning electron microscope studies. A proposal to give Draba pectinipila Rollins protection under the Endangered Species Act prompted extensive field studies on this and two closely related taxa. Rollins (1953) described D. pectinipila from the alpine habitat of Clay Butte, Park County, Wyoming. It is now known from two other alpine locations in British Columbia and Colorado. Since this taxon was described, it has been assigned to several different taxonomic categories. Before further action could be taken to protect the plants, the taxonomic status had to be reevaluated. Hitchcock (1964) gave Draba pectinipila varietal status imder D. oligospenna Hook. His only comment was that this variety was the only fairly distinct variant for the species. Mulligan (1972) placed it in synonomy under D. oligospenna without making field observations. Then Dorn (1978) described plants from the low elevation areas near the UtahWyoming border, mentioned by Rollins (1953) under D. pectinipila, as D. juniperina. To clarify the taxonomy of this species complex, D. pectinipila and D. juniperina are compared to one another and to D. oligospenna.