共查询到18条相似文献，搜索用时 243 毫秒
1.
报道了蔷薇科李亚科两个种的改隶新组合,将广义李属中的背毛樱Prunus hypotrichodes改隶为杏属中的背毛杏Armeniaca hypotrichides;疏花稠李Prunus laxiflora改隶为疏花樱Cerasus laxifiora。进一步研究的结果,同意前苏联学者G．V．Eremin et V．S．Simagin的意见,将稠李属中的种斑叶稠李Padus maackii改隶为樱属中的斑叶樱Cerasus maackii。 相似文献
2.
银杏达莫治疗青年缺血性脑卒中的疗效观察 总被引：1，自引：0，他引：1
目的:观察银杏达莫(杏丁)注射液治疗青年缺血性脑卒中的临床疗效。方法:收集青年缺血性脑卒中患者共51例,随机分为对照组和杏丁组,对照组给予常规治疗,杏丁组在常规治疗的基础上添加杏丁注射液治疗,根据神经功能缺损评分判断临床疗效。结果:杏丁组神经功能缺损评分由29.15±8.15降至9.18±5.31,平均减少70.0±11.4%;对照组神经功能缺损评分由29.48±6.53降至16.88±7.00,平均减少42.6±20.9%。从临床疗效看,杏丁组的有效率为73.1%,总进步率为84.6%;对照组的有效率为44.0%,总进步率为64.0%。两组比较有显著性差异(P<0.05￣0.01)。结论:杏丁注射液添加治疗青年缺血脑卒中具有一定的疗效。 相似文献
3.
此文包括了缢花沙参Adenophora contracta (Kitag．) J． Z． Qu et Hong 和松叶沙参 A．pinifolia Kitag．两个种。在过去，前者曾被处理为石沙参的变种(A.polyantha Nakai var．contracta Kitag．)。本文通过对它的地理分布、植物体形态和细胞学特征的研究，发现它相当独特。所以，把它处理为种的等级A．contracta (Kitag．) J．Z．Qu. et Hong。后者，曾被洪德元(1983)处理为存疑种。在此被确认为独立的种。 相似文献
5.
本文报道采自贵州的轮藻植物，计有4个新种(平滑丽藻Nitella rasilis sp．nov., 沼泽丽藻N．
paludosa sp．nov.，拟乳突丽藻N．pseudopapillata sp．nov． 贵州丽藻N．guizhouensis sp．nov．)；
1个新变种(奇异丽藻疏枝变种N．mirabilis var. libera var. nov.)；3个新记录(笔状丽藻N．peni-
cillata Braun缅甸轮藻Chara burmanica Pal，普生轮藻裸枝变种C．vulgaris var. gymnophylla (A．
Br.) Nyman)， 而拟松形轮藻 C. pseudohydropitys Imahori为大陆首次发现。 相似文献
6.
作者在调查研究云南省柴胡植物过程中，发现两个新种，定名为韭叶柴胡 Bupleurumkunmingense Y．Li et S．L．Pan 和多枝柴胡B．polyclonum Y．Li et S．L．Pan， 并进行了挥发油和皂甙成分的初步分析，发现两新种的挥发油紫外吸收光谱及薄层层析图与北柴胡B.chinense DC．的很相似; 且所含柴胡皂甙均高于北柴胡，故二者可以作为药用柴胡中的优质品而予以重视。 相似文献
7.
本文根据我国薯蓣属(Dioscorea L．)根状茎组(Sect. Stenophora Uline)的外部形态特征、细胞染色体数、花粉形态、植物化学成分、地理分布等的规律，证明根状茎组是该属中的一个比较原始的自然类群：1．具横走的多年生地下根状茎，其它组是一年生或多年生的块茎；2．大部分是2倍体，其它组是多倍体；3．花粉粒单沟型，外壁纹饰网纹或颗粒条纹，其它组为双沟型，外壁纹饰网纹；4．含甾体皂甙元(steroidal sapogenin)，其它组不含。
我们的研究观察证明，N．N．TepaCNMeHKO根据R.Knuth系统(1924)提出的薯蓣皂甙元在该属中无分布规律的说法是无充分依据的。
本文讨论了某些组或种的划分及系统位置：取消sect.Illigerestrum Prain et Burk.；将马 肠薯蓣(D．simulans Prain et Burk．)改属根状茎组；触丝薯蓣(D．tentaculigera Prain et Burk.)应列入顶生翅组 (Sect．shannicorea Prain et Burk．)， 并提出了盾叶薯蓣 (D. zingiberensis Wright)和穿龙薯蓣(D．nipponica Makino)种的划分和定名的意见。 相似文献
8.
发现卧龙乌头Aconitum wolongense W．T. Wang的模式实际上包含两种植物，即毛果甘青乌头A．
tanguticum (Maxim．)Stapf．var．trichocarpum Hand.-Mazz．和展毛大渡乌头A．franchetii Fin.et Gagnep．var．villosum W．T. Wang，故将该种予以归并。 相似文献
9.
10.
百合科六属十五种植物的细胞学研究 总被引：2，自引：0，他引：2
本文对云南西北部百合科6属15种的染色体和核型进行了报道。 (1)Clintonia udensis Trautv．et Mey间期核属于浓密分散型，前期染色体属于渐变型，分裂中期体细胞染色体2n=14=8m+4sm+2st(2SAT)，核型不对称性属于2A型；(2)鹿药属四个种间期核属于复杂中央微粒型，前期染色体属于中间型，分裂中期体细胞染色体分别为Smilacina henryi(Baker)Wang et Tang，2n=36=12m+16sm+6st+2t(2SAT)， 核型不对称性属于2C型；Smilacina fusca Wall., 2n=36=14m(2SAT)+12sm+10st(2SAT)， 核型不对称性属于2B型； Smilacina tatsienensis(Franch．)Wang et Tang， 2n=36=22m+2sm+2st(2SAT)， 核型不对称性属于2C型；Smilacina atropurpurea(Franch．)Wang et Tang，2n=36=18m+6sm(2SAT)+12st，核型不对称性属于2C型；(3)黄精属四个种的间期核属于复杂中央微粒型，前期染色体属于中间型，分裂中期体细胞染色体分别为Polygonatum kingianum Coll．et Hesml．，2n=30=12m(2SAT)
+6sm+lst+2t， 核型不对称性属于2C型； Polygonatum cirrhifolium(Wall．) Royal，2n=30=10m+4sm+12st+4t， 3C型； Polygonatum curvistylum Hua， 2n=78=24m(2SAT)+14sm(6SAT)+40st， 核型不对称性属于3C 型； Polygonatum cathcartii Baker，2n=32=12m+6sm+10st+2t+2bs，核型不对称性属于2C型；(4)百合属，假百合属，豹子花属三个属的间期核和前期染色体形态相似，都属于复杂中央微粒型，前期染色体属于中间型，分裂中期体
细胞染色体分别为Lilium henricii Franch，2n=24=2m(2SAT)+2sm+10st+10t，核型不对称性属于3A型；Lilium bakerianum Coll．et Hesml．var． rubrum Stearn， 2n=24=4m (2SAT)+10st+10t(2SAT)，核型不对称性属于3A型；Nomocharis bilouensis Liang 2n=24=2m(2SAT)+2sm+12st+8t，核型不对称性属于3A型；Nomocharis pardanthina Franch．，2n=24=4m(2SAT)+12st (2SAT)+8t，核型不对称性属于3A型；Nomocharis sauluensis Balf, f.,2n=24=4m(2SAT)+10st(2SAT)+10t，核型不对称性属于3B型；Notholirion campanulatum Cotton et Stearn2n=24=2m(2SAT)+2sm+14st(2SAT)+6t，核型不对称性属于3A型。 相似文献
11.
程用谦 《中国科学院研究生院学报》1993,31(4):362-367
The genus, Ainsliaea DC. from China is revised in this paper. Three
species, A. nana Y. C. Tseng, A. pingbianensis Y. G. Tseng and A. trinervis Y.
C. Tseng, are newly described; two species, A. chapaensis Merr. and A.
angustifolia Hook. f. et Thoms. ex C. B. Clarke are new records for China and
two new combinations, A. apteroides (Chang) Y. C. Tseng and A.
macrocephala (Mattf.) Y. C. Tseng, are made. In addition, one species, A.
hypoleuca Diels ex Limpr. and four varieties, A. bonatii Beauverd var.
arachnoidea Beauverd, A. pteropoda DC. var. leiophylla Franch., A. elegans
Hemsl. var. tomentosa Mattf. and A. glabra Hemsl. var. tenuiculis (Mattf.)Chang, are reduced to synonyms. 相似文献
12.
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
13.
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
14.
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
15.
黄燮才 《中国科学院研究生院学报》1984,22(6):486-489
Guangdougen is generally known as Shandougen. It is a traditional
Chinese drug. It can be used as antipyretic, antidote, anodyne or antiinflammation ag-
ent. In recent years, some compounds (alkaloids, flavones and a new glycoside) such
as cytisine, matrine, oxymatrine, pterocarpin and isoprenyl chalcone, have been isola-
ted from roots of Guangdougen for medicinal purposes. They give effects of antiarrhy-
thmia, anticancer or antiulcer.
A recent investigation reveals that the Guangdougen comes from Sophora tonki-
nensis Gagnep. (syn. Sophora subprostrata Chun et T. Chen) and Sophora tonkinensis
Gagnep. var. polyphylla S. Z. Huang et Z. C. Zhou, var. nov.
Gnangdougen is geographically restricted to SE. and NW. Guangxi and SE. Gui-
zhou and Yunnan (103-109°E, 22-26°N). They have an ecological preference for li-
mestone regions, very commonly growing in mountains of 500-800 m alt. 相似文献
16.
Ribes tianquanense S. H. Yu et J. M. Xu and R. moupinense Franch.
var. muliense S. H. Yu et J. M. Xu (Saxifrag aceae) are described as new fromSichuan Province of China. 相似文献
17.
中国毛茛科植物小志(十五) 总被引：1，自引：0，他引：1
王文采 《中国科学院研究生院学报》1993,31(3):201-226
在本文中澄清了一些错误鉴定；一些学名证实不能成立，成为异名；对偏翅唐松草的种下分类
群做出修订，并给出新的区别特征；做出锐棱铁线莲系的分种检索表；对渐尖铁线莲群各种的亲缘关
系进行了初步讨论；描述了1新系，3新种，3新变种，2新变型；做出1新组合，4新等级，并拟出1新名；报道了拳距瓜叶乌头、星果草和直梗高山唐松草的国外分布。 相似文献
18.
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