Acta Phytotaxonomica Sinica

Wen-Fang LIAO

A synonym of Manglietia kwangtungensis (Magnoliaceae)

广东含笑（木兰科）的一个同物异名

Huai-Zhen TIAN

Identity of Goodyera shixingensis (Orchidaceae)

石斛属植物石斛的鉴定

The comparison of the type specimens between Orthotrichum courtoisii Broth. Paris and O. consobrinum confirmed that the former is a new synonym of the latter. In addition,Orthotrichum consobrinum was described and illustrated in detail with line drawings based on the syntype of Orthotrichum consobrinum,as well as on the holotype of O. courtoisii in H.

Guo Shui

Orthotrichum courtoisii (Bryophyte),a new synonym of O.consobrinum

Orthotrichum courtoisii（苔藓植物），O. consobrinum 的新同物异名

Chromosomes and karyotypes are important aspects of plant phylogeny and evolution. The chromosome numbers and karyotypes of Lycoris radiata display great variability among and within different populations. By studying different populations of L. radiata we acquired some basic data on karyotype evolution and evolutionary mechanisms in L. radiata and the genus Lycoris. Six populations of L. radiata from Anhui and Zhejiang provinces in China were investigated cytologically. The chromosome numbers and karyotype formulae are as follows: Huoshan populations, 2n=44=28st+8t+8T, 2n=22=6st+12t+4T; Huangshan populations, 2n=22=22t, 2n=22=18st+4t, 2n=21=12st+7t+2T; Chuzhou population, 2n=33=33t; Ma’anshan populations, 2n=33=18st+15T, 2n=25=1m+20st+2t+2T; Xuancheng populations, 2n=22=20st+2T, 2n=21=1m+20st; and Hangzhou populations 2n=22=12st+4t+6T, 2n=21=18st+3t. The chromosome numbers and karyotypes of some populations are reported here for the first time and the wild tetraploid population of L. radiata was found for the first time. In addition, karyotype evolution among populations and the origin of polyploids are discussed.

Zhou Shou

Karyotypes of six populations of Lycoris radiata and discovery of the tetraploid

六种石蒜居群的核型及四倍体的发现

Two morphotaxa of ginkgoalean fossil plants from China bear illegitimate specific names, viz. Sphenobaiera biloba S. N. Feng (1977) and S. rugata Z. Q. Wang (Dec. 1984), that are heterotypic later homonyms of S. biloba Prynada (1938) and S.? rugata Z. Y. Zhou (Mar. 1984) respectively. Under Art. 53.1 and 7.3 of the Vienna Code, new specific names are proposed to supersede these illegitimate names. Two other names, viz. Baiera ziguiensis F. S. Meng (1987) and Ginkgoites elegans S. Yang, B. N. Sun & G. L. Shen (1988), were not validly published, because no nomenclatural type was definitely indicated. New species are instituted for the two morphotaxa here. Although the specific name Ginkgoites elegans Cao (1992) was antedated by Ginkgoites elegans S. Yang, B. N. Sun & G. L. Shen (1988), it still remains available for use, as the latter name has no status under the Vienna Code (Art. 12, 37) and thus no priority over Ginkgoites elegans Z. Y. Cao.

WU Xiang-Wu

Zhou Zhi-Yan

Wang Yong-Dong

Nomenclatural notes on some ginkgoalean fossil plants from China

中国部分银杏类化石植物的命名注记

利用超薄平板微型聚丙烯酰胺凝胶的等电聚焦电泳技术,对玄参科Scrophulariaceae地黄属Rehmannia 6种植物和崖白菜属Triaenophora 2种植物共52份材料进行了7个酶系统的等位酶分析.在7个酶系中共检测到18个清晰位点和45个等位基因,多态位点为17个; 并将遗传学数据用软件Biosys-1进行分析,结果表明: 同种内个体间表现出较大的遗传同质性,而不同种的个体则表现出明显的趋异性.除高地黄R.elata和裂叶地黄R.piasezkii外,其余6种植物之间遗传分化较明显,8个种按聚类结果分为两支,崖白菜属的崖白菜T.rupestris和神农架崖白菜T.shennongjiaensis聚为一支,位于分支树的基部; 地黄属的地黄R.glutinosa、茄叶地黄R.solanifolia、天目地黄R.chingii、湖北地黄R.henryi、高地黄和裂叶地黄为另一支.在地黄属中,高地黄和裂叶地黄之间的亲缘关系最近,地黄和裂叶地黄关系最远.本研究结果不支持把高地黄和裂叶地黄作为两个独立的种.地黄属与崖白菜属在遗传上具有较高水平的相似性,它们在生活史和形态学上仍然保留有许多共同的特征,说明它们之间分化的时间可能不长.

出版信息	出版商: Wiley-Blackwell，出版周期: ，期刊类型: journal，开源期刊: 否
基本数据	创刊年份: 2004，原创研究文献占比: ，自引率:， Gold OA占比:

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A synonym of Manglietia kwangtungensis (Magnoliaceae)

Identity of Goodyera shixingensis (Orchidaceae)

Orthotrichum courtoisii (Bryophyte),a new synonym of O.consobrinum

Karyotypes of six populations of Lycoris radiata and discovery of the tetraploid

Nomenclatural notes on some ginkgoalean fossil plants from China

地黄属和崖白菜属等位酶的变异研究

A synonym of Manglietia kwangtungensis (Magnoliaceae)

Identity of Goodyera shixingensis (Orchidaceae)

Orthotrichum courtoisii (Bryophyte),a new synonym of O.consobrinum

Karyotypes of six populations of Lycoris radiata and discovery of the tetraploid