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1.
One new species and one new variety of the genus Epimedium
(Berberidaceae) are described from China. They are E. enshiense B. L.Guo et Hsiao and E. platypetalum var. tenuis B. L. Guo et Hsiao. 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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维吾尔族制毡手工艺源远流长,在世代发展过程中具有了独特性、传承性和民族性,其中蕴含着历史、文化、科学、审美、经济等价值,是一宗宝贵的非物质文化遗产。本文详细论述了维吾尔族花毡的染料。 相似文献
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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
13.
马金双 《中国科学院研究生院学报》1989,27(5):321-364
本文通过对东亚和南亚马兜铃属的研究，修改了马兜铃属的分类系统，补充论证了演化趋势；并
在分析该属地理分布的基础上提出马兜铃属分布与分化的第二个中心——中国的横断山区。 本文确
认2亚属、7组、4系、68种和1变种，其中有3新组、2新种及13个新异名。 相似文献
14.
马炜梁 《中国科学院研究生院学报》1991,29(4):289-314
本文报道了谷精草属3个新系，7个新种、5个新变种、2个新组合、3个新记录、修正了5个种的特征记载，新归并学名15个，共涉及全国32种8变种中的34个。 相似文献
15.
杨亲二 《中国科学院研究生院学报》2000,38(6):551-556
描述了云南西北部毛茛属一新种——文采毛茛R．wangianus Q．E．Yang。该种与云南毛茛 Ranunculus yunnanensis Franch．十分相似,但在叶的质地和形状以及染色体数目方面明显不同。与扇叶毛茛R．felixii Lévl．也相似,但后者为四倍体,须根基部肉质肥厚成纺锤形,基生叶通常1枚,叶片肾状圆形至扇形而易于区别。首次报道了云南毛茛、扇叶毛茛和文采毛茛的染色体数目和核型。 相似文献
16.
黄淑美 《中国科学院研究生院学报》1987,25(5):384-389
Dichroa Lour., a small genus of Saxifragaceae, contains about 12 species,
ranging from the mainland of S. E. Asia southward to Pacific islands. But most of
the species are more restricted in distribution. Of the 12 recognized species, six are
known from South China and Indochina; three are confined to west and northwest
New Guinea; two are endemic to the Phillipines. Only one species is widely distributed
in S. E. Asia. In the present paper, the genus is divided into two sections and two
series based on the number of stamens and the characteristics of the ovary. One spe-
cies is described as new. 相似文献
17.
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
18.
Apostasioideae, a small subfamily of Orchidaceae, is largely distributed in tropical
Asia with its northern limit extending to the Ryukyu Islands and south China. The first Chinese
species of this subfamily was reported by E. D. Merrill (1927) based on a specimen collected
from Hainan (McClure 9519, AMES), which he regarded as Apostasia wallichii R. Br. As
later labelled by E. F. de Vogel, it is in fact identical with A. odorata Bl., a widespread spe-
cies also found in southern Guangdong, Guangxi and Yunnan of China. It was not until re-
cently that the true A. wallichii was collected from southwestern Yunnan bordering on Burma,
which is initially reported here. In addition, an interesting new species, A. ramifera S. C. Chen
et K. Y. Lang, is described from Hainan.
The only Chinese species of Neuwiedia has long been known as N. veratrifolia Bl. (of.
Iconographia Cormophytorum Sinicorum 5: 602, t. 8034. 1976, and Flora Hainanica 4 180, t.
1078. 1977), which, however, was considered by de Vogel (1969) to be not found in China. In
de Vogel's revision, no Chinese taxon but a variety, N. zollingeri Rchb. f. var. singapureana
(Baker) de Vogel, is cited with some doubt based on a specimen of Hainan (F. C. How 73122,
in young fruit, AMES). N. zollingeri var. singapureana is in fact quite different from N.
veratrifolia by having glandular hair, much shorter inflorescence and flattened filaments. As
recently pointed out by de Vogel and G. Barretto (in Journ. Taiwan Museum 37: 78. 1984),
the plants found in Hongkong, as well as those in Guangdong and Yunnan, possess glandular
hair and short inflorescence. They are identical with the Vietnamese species N. balansae Gagnep.,
which was reduced by de Vogel to a synonym of N. zollingeri var singapureana. E. F. de
Vogel's suggestion seems to be acceptable except the varietal rank. It is treated here as a se-
parate species, N. singapureana (Baker) Rolfe, according to its fruit and hair characters. Thus
we have altogether one species of Neuwiedia and three species of Apostasia in China, including a new species and a newly recorded one. 相似文献
19.
阴山荠属的校订 总被引：1，自引：0，他引：1
张渝华 《中国科学院研究生院学报》1987,25(3):204-219
The genus Yinshania was established by Ma Yu-chuan and Zhao Yi-zhi in 1979,
when only one species, Y. albiflora Ma et Y. Z. Zhao, was discribed from Nei Monggol. In
the present paper the genus Yinshania is revised and four new species, two new varieties and
four new combinetions are reported. There are so far eight species and two varieties in total
in this genus.
Important morphological characters of the genus are analysed, which shows that the lateral
nectariferous glands positioned at lateral base of the brevistamens are triangularovoid; there are
dense minute pustules on the surface of valves, which is easily neglected because the pustules disap-
pear or shrinked when dry; simple or furcate hairs are present in the most species, seldom absent;
the shape of pollen grains is relatively steady, elliptic or long-elliptic, with the polar view trifid-
circular, the equatorial view elliptic or long elliptic, the aperture 3-colpate, exine reticular.
The type of genus Yinshania is changed. Cochlearia acutangula O. E. Schulz was published
in 1929, but Y. albiflora Ma et Y. Z. Zhao in 1979. They are the same species and a new com-
binetion, Y. acutangula (O. E. Schulz) Y. H. Zhang, is made. Thus, the type of genus Yin-
shania should be changed to Y. acutangula (O. E. Schulz) Y. H. Zhang.
Besides, He Ye-qi 6121 (paratype, PE), which is different from Y. acutangula var. albif-
lora, is separated from it and transferred the typical variety, Y. acutangula.
According to the characters of fruit shape the genus Yinshania is divided into two sections,
namely, Sect. Microcarpa and Sect. Yinshania, and then Sect. Yinshania is subdivided into two
series.
Sect. 1. Microcarpa. Silicles widely ovoid or subglobose, 1-2.2 mm long, 0.8-2.2 mm wide,
the ratio of length and width about 1.1.
Sect. 2. Yinshania. Silicles oblong, oblong-ovoid or long-lanceolate, ellipsoidal, 1.5-4.5 mm
long, 0.3-1.5 mm wide, the ratio of length and width about 2.5-3.3.
Ser. 1. Henryanae. Raches flexuose; plants densely hairy; leaves 3-5-foliolate, seldom
pinnatipartite or pinnatisect.
Ser. 2. Yinshania. Raches non flexuose; plants sparsely hairy; leaves pinnatisect or pinna-
tipartite.
The genus Yinshania is a genus endemic to China, with their range from eastern Xizang to
western Hubei from northern Guizhou to central Nei Monggol. The taxa are mostly of a small
area. Sect. Microcarpa is concentrated in Sichuan and southern Gansu; Sect. Yinshania is
spread from Xizang and Sichuan, nouthwards to Gansu, Ningxia, Shanxi, Hebei and Nei Mong-
gol (Ser. Yinshania); and from Sichuan south-eastwards to Guizhou and Hebei (Ser. Henrya-
nae). There are five species in Sichuan. The present paper conjectures that the distribution
centre of the genus is in the Hengduan Mountains and its adjacent areas. 相似文献