To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the...To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the tubercle characters on lemma in Yihuang wild rice, O. rufipogon, 0. officinalis, 0. meyeriana, and O. granulata, were also observed by scanning electron microscopy. The retrieval result by genus showed that Yihuang wild rice is Leersia Soland. Ex Swartz., not Oryza L., Hygroryza Nees and Chikusichloa Koidz. The retrieval result by species showed that Yihuang wild rice is L. sayanuka Ohwi, not L. hexandra Swartz., L. japonica （Makino） Honda and L. oryzoides （L.） Swartz. The results of the SEM observation on tubercles on lemma showed that the tubercle characters on lemma of Yihuang wild rice belongs to ＂inlaid- silica-peak＂ type, which is different from the three types of wild rice existing in China, O. rufipogon, O. officinalis, O. Meyeriana, and also O. granulata, but is similar to L. tisseranti, thereby gives a proof of the above retrieval results. It could be concluded that Yihuang wild rice does not belong to Oryza L., but to Leersia sayanuka Ohwi of Leersia Soland. Ex Swartz.展开更多
目前已有一些计算机辅助技术用于植物的物种鉴定,其中最具代表性的是DELTA系统。DELTA系统在植物资源研究中具有潜在的应用价值,值得推荐给相关学者。为更好地展示DELTA系统的功能和推荐这一工具,我们报道了以下两项研究结果。第一,利用...目前已有一些计算机辅助技术用于植物的物种鉴定,其中最具代表性的是DELTA系统。DELTA系统在植物资源研究中具有潜在的应用价值,值得推荐给相关学者。为更好地展示DELTA系统的功能和推荐这一工具,我们报道了以下两项研究结果。第一,利用DELTA系统,基于筛选出的21个形态特征,编制了河北省伞形科分种交互式检索表,提供了一个新型的鉴定伞形科植物资源的检索工具;第二,利用Flora of China数据库中已有的杜鹃花属交互式检索表筛选出具有较高经济价值的中国野生高山杜鹃资源,这将为加强高山杜鹃的驯化、栽培和开发利用提供便利。展开更多
Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first tim...Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first time. Anatomy, morphology and chemistry descriptions based on our materials for the new records are given.展开更多
基金This work was supported by the Korea Research Foun-dation and The Korean Federation of Science and Technology Socities Grant funded by Korea Government (MOEHRD, Basic Research Promotion Fund), (Project No. 032-4-1).
基金supported by the National Natural Science Foundation of China(30560073)the Key Technologies R&D Program of Jiangxi Province,China(200210100210).
文摘To distinguish the taxonomy of Yihuang wild rice found in Yihuang County, Jiangxi Province, China in 1999, the botanical characteristics of Yihuang wild rice were retrieved by genus, and species; at the same time, the tubercle characters on lemma in Yihuang wild rice, O. rufipogon, 0. officinalis, 0. meyeriana, and O. granulata, were also observed by scanning electron microscopy. The retrieval result by genus showed that Yihuang wild rice is Leersia Soland. Ex Swartz., not Oryza L., Hygroryza Nees and Chikusichloa Koidz. The retrieval result by species showed that Yihuang wild rice is L. sayanuka Ohwi, not L. hexandra Swartz., L. japonica （Makino） Honda and L. oryzoides （L.） Swartz. The results of the SEM observation on tubercles on lemma showed that the tubercle characters on lemma of Yihuang wild rice belongs to ＂inlaid- silica-peak＂ type, which is different from the three types of wild rice existing in China, O. rufipogon, O. officinalis, O. Meyeriana, and also O. granulata, but is similar to L. tisseranti, thereby gives a proof of the above retrieval results. It could be concluded that Yihuang wild rice does not belong to Oryza L., but to Leersia sayanuka Ohwi of Leersia Soland. Ex Swartz.
文摘目前已有一些计算机辅助技术用于植物的物种鉴定,其中最具代表性的是DELTA系统。DELTA系统在植物资源研究中具有潜在的应用价值,值得推荐给相关学者。为更好地展示DELTA系统的功能和推荐这一工具,我们报道了以下两项研究结果。第一,利用DELTA系统,基于筛选出的21个形态特征,编制了河北省伞形科分种交互式检索表,提供了一个新型的鉴定伞形科植物资源的检索工具;第二,利用Flora of China数据库中已有的杜鹃花属交互式检索表筛选出具有较高经济价值的中国野生高山杜鹃资源,这将为加强高山杜鹃的驯化、栽培和开发利用提供便利。
基金Supported by the National Natural Science Foundation of China （No. 30470003） and the Natural Science Foundation of Shandong Province （No.Y2004D03）
文摘Fourteen species of the lichen genus Lecanora are reported from Bailong river valley of Gansu province. Four of them, L. albella, L. flowersiana, L. garovaglii and L. symmicta are reported from China for the first time. Anatomy, morphology and chemistry descriptions based on our materials for the new records are given.
