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1.
Three new species and a new variety, Epimedium coactum, E. coactum var.
longtouhum, E. trunctum, E. glandulosopilosum are described in this paper. The morphological
characters of trichomes, cuticle of leaf surface and pollen grains of the new species and theirallies were studied under LM and SEM, and shown in plates 1-3. 相似文献
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钟国跃 《中国科学院研究生院学报》1991,29(1):89-91
Epimedium ecalcaratum G. Y. Zhong is described as new from SichuanProvince, China. 相似文献
4.
本文采用LSA_20树脂吸附分离箭叶淫羊藿黄酮。以淫羊藿总黄酮和淫羊藿苷含量为指标研究淫羊藿的提取及LSA_20树脂分离工艺。以紫外分光光度法测定淫羊藿总黄酮的含量;以高效液相色谱法测定淫羊藿苷的含量;结果：淫羊藿总黄酮的最佳提取工艺为20,18倍量（V/W）,70%乙醇提取2次,提取时间为40,30分钟。上样浓度为6mg/mL,以流速3 BV/h上样,上样后静止一小时,用2 BV的去离子水洗去原液,然后用10倍树脂床体积的60%乙醇以3 BV/h流速洗脱,收集洗脱液。本实验方法成本低,适宜用于产业化生产。 相似文献
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本文对LSA20树脂对箭叶淫羊藿黄酮的吸附分离性能进行研究。以黄酮为指标,采用分光光度法测定。浓缩液中总黄酮含量为65.21%。采用的测定方法简便、准确,可用于黄酮的含量测定。 相似文献
7.
目的:探讨淫羊藿总黄酮和多糖的提取工艺优化条件。方法:以淫羊藿中含有的总黄酮含量为主要的评价指标,分别考察浸提温度、浸提时间、固液比和乙醇浓度四个因素对总黄酮提取量的影响,采用正交试验优化淫羊藿中总黄酮的提取工艺。结果:经过研究后发现淫羊藿中总黄酮的最佳提取条件为60%乙醇,固液比为l:10条件下80℃进行回流提取2次,每次1h。结论:经过优化后的总黄酮提取工艺简单、方便、提取率高,值得推广使用。 相似文献
8.
应俊生 《中国科学院研究生院学报》2002,40(6):481-489
淫羊藿属的种数与60年前大不相同，现在已知约有50种。该属种类间断地分布于日本至北非
的阿尔及利亚之间的广大地区，这一分布格局表明了该属的古老性质。它们在欧亚大陆的分布极不均
匀，约有80％的种类产于中国中部至东南部，而且根据花瓣的演化分析结果表明，只有中国的淫羊藿属
植物具有连续不断的演化过程。由此可见，中国中部至东南部成为北半球淫羊藿属植物的汇集中心是
有充分根据的。淫羊藿属种类基本上是林地草本植物，常生于水青冈林下，为林下草本层的优势种，而
且该属的分布格局与第三纪植物属——水青冈属在欧亚大陆的分布格局极为相似，说明淫羊藿属植物
在早第三纪时期已广泛分布于北半球。中新世时期由于中亚地区气候变干，加之印度板块向欧亚大陆
俯冲并引起喜马拉雅山脉隆起，致使中亚地区进一步干旱，水青冈属和淫羊霍属植物随之消失，进而导致其东亚—地中海、西亚间断分布格局的形成。 相似文献
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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
12.
郭新弧 《中国科学院研究生院学报》1993,31(3):266-272
One new genus, one new species and one new subspecies of Labiatae
from Anhui and Zhejiang province of China are described and one new combina-
tion is made in this paper. They are Pogonanthera H. W. Li et X. H. Guo, P.
caulopteris H. W. Li et X. H. Guo, P. intermedia (C. Y. Wu et H. W. Li) H.
W. Li et X. H. Guo and Paraphlomis foliata (Dunn) C. Y. Wu et H. W. Lissp. montigena X. H. Guo et S. B. Zhou. 相似文献
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梁松筠 《中国科学院研究生院学报》1990,28(2):153-158
In addition, two new sections, Echinochlomorphae Y. L. Chang and
Thomsonianae Y. L. Chang, two new combinations, C. duriuscula subsp. rigescens
(Franch.) S. Y. Liang et Y. C. Tang (=C. stenophylla var. rigescens Franch.) and
C. rochebrunii Franch. Subsp. reptans (Franch.) S. Y. Liang et Y. C. Tang (=C.
remotae L. var. reptans Franch.) are made, and C. stenophylloides V. Krecz. is
reduced to C. duriuscula subsp. stenophylloides (V. Krecz.) S. Y. Liang et Y. C.Tang. 相似文献
14.
谷粹芝 《中国科学院研究生院学报》1991,29(1):80-83
In the present paper, we new species and two new varieties of Saxifragaceae and
Rosaceae are described from the Hengduan Mountains. They are Philadelphus lushui-
ensis Ku et S. M. Hwang, Parnassia lanceolata Ku var. oblongipetala Ku, P. nubicola Wall.ex Royle var. nana Ku and Malus muliensis Ku. 相似文献
15.
对Epipactis consimilis、火烧兰 E．helleborine和疏花火烧兰 E．veratrifolia之间的形态作了比较，并对Epipactis consimilis D．Don作了名称考证。结果承认 Epipactis veratrifolia Boiss．et Hohen．为合法名称，以取代早先为Rolfe(1903)所接受、近来在《中国植物志》第17卷(1999)中使用的Epipactis consimilis D．Don。 相似文献
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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
18.
熊源新 《中国科学院研究生院学报》1993,31(6):575-577
Reported in the present paper are two new species and one new record
of Spirogyra. The two new species are Spirogyra subferruginea and S.kweichowensis; the new record for China is Spirogyra brunea Czurda. 相似文献
19.
In this paper,two new species of Euonymus are described from China.
They are Euonymus jinfoshanensis Z. M. Gu and Euonymus xylocarpus C. Y.Cheng et Z. M. Gu. And the specific names of two species are revised. 相似文献
20.
Two new species of family Athyriaceae are described from Hunan
Province, China. i. e. Athyriopsis hunanensis Z. R. Wang et S. F. Wu, and Athy-rium tianzeshanense S. F. Wu et L. F. Zhang. 相似文献