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1.
孔宏智 《中国科学院研究生院学报》2000,38(4):355-365
在标本室研究和野外考察的基础上,对宽叶金粟兰Chloranthus henryi及其近缘种进行了分类学修
订。确认了宽叶金粟兰、及己C．serratus、华南金粟兰C．sessilifolius和台湾金粟兰C．oldhami,将单穗金
粟兰C．monostachys、湖北金粟兰C．hupehensis 、C. philippinensis、C．verticillatus和台湾及己C．serratus
var．taiwanensis处理为新异名。通过研究合模式及有关照片,指定了宽叶金粟兰、多穗金粟兰C.multis-tachys和湖北金粟兰的后选模式。 相似文献
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3.
草珊瑚人工栽培及其化学成分与药理研究概况 总被引：2，自引：0，他引：2
通过查阅相关文献,结合已有的研究工作,对草珊瑚的人工栽培、化学成分及药理作用研究作综述,对草珊瑚药材生产开发及资源保护具有指导意义。 相似文献
4.
随着当前社会技术的不断发展,食品安全和医药安全已成为当前人们关注的重点。在生物技术应用日益增加的过程中,各种医药的检测模式和检测方法已成为社会发展过程中不可忽视的模式。草珊瑚作为当前医药中的主要原材料,其在应用的过程中存在的各种问题和缺陷都是不容忽视的。黄酮作为草珊瑚中的主要化合物,其活性高,含量多。因此合理的确定黄酮提取和含量的检测是保证制药安全的关键。就草珊瑚总黄酮的提取及其含量测定方式进行分析,并通过实际实验进行确定。 相似文献
5.
针对草珊瑚（三明）中反丁烯二酸的提取工艺的研究,采用超声波法进行优选,用液相色谱法（测量条件：Agilent 1200C18（250mm×4.6mm,5μm）色谱柱,流动相为乙腈-0.1%磷酸溶液,比例为（2：98）,流速为1.0mL/min,柱温30℃,检测波长208nm,出峰时间为1.471min）测定不同条件下样品的吸收峰,以吸收峰大小为指标定性分析从而确立单因素设计正交实验,通过正交实验研究5因素（溶剂浓度、pH、超声波功率、超声波温度、料液比）对草珊瑚中反丁烯二酸的提取效果的影响。通过正交实验最终确立了最优提取工艺：溶剂浓度70%;pH=4;超声波功率50w;超声温度50℃;料液比1：35,提取时间为40min。通过该实验确立最优工艺提取效果好,简便易行。 相似文献
6.
现代西方文明尽管已发展到一定程度,但社会对女性的歧视依然存在,女权主义团体的日益增多.试图从英语的词汇入手,分析英语词汇对女性的歧视和贬低.第一部分阐述英语词汇通常给人某种暗示,认为女人通常都是男人的一部分;第二部分则揭示英语词汇本身对女性的一种天生的敌意,它不断地歧视贬低女性.只要社会中的性别歧视未被消灭,语言中的歧视现象就永远不会消失. 相似文献
7.
牛顿是一名伟大的科学家,在许多领域均有过创造性的成就,对社会的发展和历史的进步曾经作出杰出的不可磨灭的功绩.然而,后人在对其广泛深入的研究中却发现了牛顿令人遗憾的另一面,本文从牛顿生平、功绩、留下的遗憾三个方面对牛顿进行了分析研究,深刻反思了牛顿性格两极化的根本原因,对牛顿的成败给出了自己的结论,可供今天的科研工作者参考. 相似文献
8.
随着科技的飞速发展和人们生活节奏的不断加快,对现代大型工程项目迫切需求加强风险管理,风险所致损失规模也越来越大,这些都促使科研人员和实际管理人员从理论上和实践上重视对大型工程项目的风险管理. 相似文献
9.
有一座在全国颇具盛名的"专题景点",它就是浓缩着几千年经济、金融变革精髓的"钱币博物馆".它坐落在最佳观海点,风光绮丽,为英国驻厦门领事馆的官邸旧址.博物馆以展示闽台钱币文化为重点,供全世界各地的人参观,现辟有5个展厅,从先秦到民国,从贝币到四大货币体系,洋洋5000多个品种,穿越时空隧道,历经千年沧桑,可尽情饱览钱币历史长河中的朵朵多彩浪花. 相似文献
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In this paper, two new species, one new record of the Characeae from
Xinjiang are reported. They are Chara brevibracteata Han, C.vesicata Fu et Q. F.Zhao and C. vandulurensis Sund. 相似文献
12.
The present paper deals with a comparative karyotypic study of three species in Fri-
tillaria-F. thuncergii Miq., F. anhuiensis S. . Chen et S. F. Yin and F. hupehensis Hsiao et
K. C. Hsia. The karyotype of F. anhuiensis S. C. Chen et S. F. Yin is first reported.
The karyotypes of the three species of Fritillaria are rather similar, all with K(2n)=24=
2m+2sm+12t+4st+4m (SAT), showing a close interspecific relationship. They all have two
pairs of st chromosomes, one of which is the third chromosome in all the three species studied,
but the other is the seventh in F. thunbergii Miq, the eighth in F. anhuiensis S. C. Chen et S. F.
Yin, and the fifth in F. hupehensis Hsiao et K. C. Hsia. It tells us that there are some differences
in their karyotypes. All of the three species possess two pairs of satellite chromosomes with the
satellites located on the long arms. A heterochromatic zone is found sometimes on long arms of No.
IX chromosome in each species of Fritillaria and on one of No. I chromosomes in both F. thun-
bergii Miq. and F. anhuiensis S. C. Chen et S. F. Yin, a chromosome polymorphism occurring
between populations of Fritillaria. In addition, three B chromosomes are always found in most
root-tip cells of F. hupehensis Hsiao et K. C. Hsiao. 相似文献
13.
乌蒙杓兰及其近亲种 总被引：1，自引：0，他引：1
陈心启 《中国科学院研究生院学报》1985,23(5):369-375
In addition to describing a new species, Cypripedium wumengense, as well
as a new variety, C. bardolphianum var. zhongdianense, nomenclatural and taxonomic
notes are made on its allies and the division to which they belong. They are ltrge]y
found in the Hengduan Mountains in southwestern China, characterized by the absence
of bract, havirg lip more or less covered with small wart-like outgrowths, and that as
the capsule matures the scape becomes much elongated. Six species of this group have
hitherto been reported, of which, however, C. ebracteatum and C. nutans are regarded
here as conspecific with C. fargesii and C. bardolphianum respectively. Thus, including
the new taxa described here, it composes five species and one variety: C. bardolphianum
W. W. Sm. et Farrer (var. bardolphianum and var. zhongdianense S. C. Chen), C. mic-
ranthum Franch., C. fargesii Franch., C. margaritaceum Franch. and C. wumengense
S. C. Chen. They are all grouped here into the same section, Sect. Trigonopedium
(Franch.) Pfitz., the oldest legitimate name of this group in the rank of section. 相似文献
14.
基于对许多活植物的观察，对兰科中兰属的若干种类进行了分类学考订，结果承认菅草兰Cymbidium tortisepalum与峨眉春蕙C. omeiense为独立的种，将春剑C. longibracteatum移至菅草兰之下作为变种，送春C. szechuanicum移至莎叶兰C. cyperifolium之下作为变种。由于春剑、峨眉春蕙和送春的模式标本及引证标本已在30多年前全部丢失，本文指定了新模式。 相似文献
15.
Two new species of Codonopsis, namely C. parvitubulosa Z. T. Wanget G. J. Xu and C. retroserrata Z. T. Wang et G. J. Xu are described 相似文献
16.
张志耘 《中国科学院研究生院学报》1986,24(4):297-303
The present paper deals with taxonomic studies on the genera Lathraea
Linn. and Christisonia Gard. (Orobanchaceae) in China. In the genus Lathraea, only a
single species in China, L. japonica Miq., is recongnized in the paper. It occurs in sou-
thern Shaanxi, southern Gansu, southeastern Sichuan, northern Guizhou and northern
Guangdong, also in Japan. L. miqueliana Franch. et Sav., L. chinfushanica Hu et Tang
and L. japonica Miq. var. miqueliana (Franch. et Sav.) Ohwi are treated as new synon-
yms of L. japonica Miq. in this paper.
In the genus Christisonia, the most of collections from China, which were identi-
fied as C. sinensis G. Beck before, are treated as a new synonym of C. hookeri C. B.
Clarke. A few collections of this genus from China, which were mistakenly described
as Gleadovia lepoense Hu snd G. kwangtungense Hu, should be transferred to Christi-
sonia hookeri C. B. Clarke. It is distributed in southeastern and south China, westwards
to the Himalayas. 相似文献
17.
One new species Coloniophora shanxiensis Y. J. Ling et S. L. Xie, is described,and one new record, C. spicata (Schmid.) Islam, is reported both from shanxi, China. 相似文献
18.
One new species of the genus Cimicifuga (Ranunculaceae)is described from Sichuan Province, China. It is C. lancifoliolata X. F. Pu et M. R. Jia. 相似文献
19.
eterachopsis was proposed by the senior author as an independent genus of
the family Aspleniaceae in 1940 with 2 species. Since then much study on its morpho-
logy, anatomy, gametophyte and palynology has been carried out by Nayar, Bir, Chan-
dra & Nayar and Chang et al., and they are of the opinion that the genus like Ceterach,
is a comparatively primitive element in the family Aspleniaceae. The queer zigzag pa-
tern of cutting of lanceolate fronds appears extraordinary in the family Aspleniaceae,
and also suggests its antiquity in evolution. So far only 3 species (C. dalhousiae, C.
paucivenosa and C. magnifica) are recognized, the former from W. Himalayas, also
known from Africa, while the latter two from W. S. China (Yunnan). However, in
the past forty years the Chinese botanists have discovered 2 more species as new in N.
W. Yunnan, thus bringing the total known species of the genus up to 5. The present
paper is a brief summary on the genus Ceterachopsis, which will be published in detail
in the Flora Sinica vol. 4.
Pteridologists are also divided in their views regarding the generic status of Cete-
rachopsis with 5 well-defined species in Yunnan and the East Himalayas. We prefer
to mintain it as a genus separate from Asplenium on account of its distinct morpholo-
gical features. It is to be hoped that more species may come to light in the mountainsin N. W. Yunnan through further exploration now under way. 相似文献
20.
In order to get a thorough understanding of the Characeae, the specime-
ns collected from Guangxi and Gansu were identified. The result shows that the
two provinces, especially Guangxi, are abundant in this family. In this paper, ho-
wever, reported are only new species, new varieties and new records of Chara in China.
They are Chara vernicosa sp. nov. C. globularis var. inflata var. nov. and C. howe-ana var. subgymnophylla var. nov., C. brionica stapf and C. calveraensis comb. nov. 相似文献