共查询到17条相似文献，搜索用时 109 毫秒
1.
中国虎耳草属的研究 总被引：1，自引：0，他引：1
潘锦堂 《中国科学院研究生院学报》1991,29(1):1-24
本文提出了一个中国虎耳草属系统，确认我国有2亚属，8组，7亚组(包括1新亚组)，31系(包括23新系)，4亚系(新亚系)和203种(包括2新种和4新变种)。 相似文献
2.
蔡联炳 《中国科学院研究生院学报》1997,35(2):148-177
本文对中国鹅观草属Roegneria进行了分类修订，提出了一个新的分类系统。新系统包括19个新组合或新等级，并按照颖分组、芒分系的原则确认了中国该属植物4组、18系、79种、22变种，其中包括7新系、5新种和1新变种。此外，一些类群的省级分布新记录也在本文作了报道。 相似文献
3.
陈书坤 《中国科学院研究生院学报》1991,29(3):193-229
本文通过对国产远志属的分类系统和外部形态(特别是花部、种子和种阜的形态)及花粉粒形态 的研究，结合地理分布，首次确认国产远志为3亚属、4组(其中2新组)，41种8变种。 相似文献
4.
朱华 《中国科学院研究生院学报》1994,32(1):49-81
本文修订了中国产粗叶木属植物，共记录31种、4亚种和10变种。其中，报道了一个新种、1个新亚种、2个新变种、8个新组合和9个分布新记录，新归并学名12个，并且对中国粗叶木属植物文献记载中的一些错误和混淆作了澄清。 相似文献
5.
中国菊科菜蓟族植物研究(Ⅱ) 总被引：1，自引：0，他引：1
石铸 《中国科学院研究生院学报》1984,22(5):386-396
本文是对国产菜蓟族两个属研究的一个小结。一个是蓟属(Cirsium Mill. Ecmend．Scop.)，将全部国产蓟属49种植物分隶排列在8个组中，其中3个组为新成立的组，1个组为新的组合。记载了9个新种，1个新组合种，4个种为中国分布新记录。将过去学者们发表的组、种 及变种等各级上的65个名称处理为新异名，检查出错误鉴定8处，对变异较大的种给予了说明和讨论。另一个是刺膜菊属(Alfredia Cass.)，记载了一个新种。 相似文献
6.
本文将石杉科石杉属(狭义)分为两组,即小杉兰组Sect．Huperzia和蛇足石杉组Sect．Serratae
(Rothm．)Holub,对小杉兰组的概念进行了修订并对国产有关种类进行了分类学研究。共记载国产小杉
兰组植物12种1变种,并包括1个新组合:Huperzia quasipolytrichoides(Hayata)Ching var. rectifolia
(J．F．Cheng)H．S．Kung et L．B．Zhang,2个新异名:H．hupehensis Ching和H．whangshanensisChing et P．C．Chiu． 相似文献
7.
本文叙述了木蓝属系统研究的简史，对该属形态特征的演化趋势及属下分类进行系统
研究，根据植物习性、叶的特征、果实形态及含种子数，将国产木蓝属80种，1变种归纳为3亚
属，并将木蓝亚属分为14亚组，其中包括9个新亚组，对其中一些种类作了归并及处理，并编 写了分种检索表。 相似文献
8.
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
9.
林祁 《中国科学院研究生院学报》2000,38(6):532-550
根据对12个国家53个标本馆收藏的5,000余份五味子属Schisandra植物标本的研究,结合野外调查和采集,对世界范围的五味子属种类作了分类学订正。在五味子属中,10个种被确认,22个种、7个亚种、14个变种和1个变型的名称被作为新异名。文中附有分种检索表。 相似文献
10.
朱华 《中国科学院研究生院学报》2001,39(2):116-150
在详细检查了K，BM，E，P，AAU，L，KEP，BKF，BK，SING，PSU等标本馆馆藏茜草科粗叶本属Lasianthus Jack.植物标本基础上，研究了泰国产粗叶木属植物的分类学，共归并7个种名，建立3个新种，3 个新变种，1个新等级，以及8个泰国分布新记录种及8个泰国分布新记录变种，确认泰国共有粗叶木属植物52种，1亚种，12变种；讨论了易于混淆的种的界线、它们可能的亲缘关系以及识别要点。 相似文献
11.
中国绞股蓝属(葫芦科)的研究 总被引：2，自引：0，他引：2
The genus Gynostemma B1. consists of 13 species and 2 varieties in the whole world,
among which 11 species and 2 varieties occur in China. They are distributed in S. Shaanxi
and the southern part of the Yangtze River (including Taiwan province) in China and also
in Korea, Japan, Sri Lanka, India and Malesia. Based on the characters and dehiscence of fruit, the genus Gynostemma B1. may be divided into two subgenera, i.e. Subgen. I. Gynostemma and Subgen. II. Trirostllum (Z. P. Wang et Q. Z. Xie) C. Y. Wu ct S. K. Chen,
comb. nov.
1. Subgenus Gynostemma. The fruits are baccate, globose, 3-umbonate and incorni
culate on the apical side, indehiscent when mature. The style apex in female flower is bifid.
Type of subgenus: Gynostemma pentaphyllum (Thunb.) Mak.
This subgenus contains 8 species and 2 varieties in the world, among which 6 speci-
es and 2 varieties occur in China, i.e.1.G. simplicifolium B1. (Yunnan, Hainan of Guang-
dong); 2. G. laxum (Wall.) Cogn. (S. Yunnan, Hainan of Guangdong and Guangxi); 3.
G. burmanicum King ex Chakr. (Yunnan), 3a. G. burmanicum var. molle C. Y. Wu (Yun-
nan); 4. G. pentaphyllum (Thunb.) Mak. (S. Shaanxi and the soutern area of the Yangtze
River of China), 4a. G. pentaphyllum (Thunb.) Mak. var. dasycarpum C. V. Wu (Yun-
nan); 5. G. pubescens (Gagnep.) C. Y. Wu, st. nov. (Yunnan); 6. G. longipes C. Y. Wu,
sp. nov. (endemic to China: Yunnan, Sichuan, Guizhou, Shaanxi and Guangxi).
2. Subgenus Trirostellum (Z. P. Wang et Q. Z. Xie) C. Y. Wu et S. K. Chen, comb.
nov.——Trirostellum Z. P. Wang et Q. Z. Xie in Acta Phytotaxonomia Sinica 19 (4):
483. 1981, syn. nov. The fruit are capsules, subcampanulate, 3-corniculate on the apical side, dehiscent when mature. The style apex in female flower is luniform and irregularly denticulate at margin, rarely bifid.
Type of subgenus: Gynostemma cardiospermum Cogn. ex Oliv. This subgenus comprises 5 species, which are all endemic to China. 1. G. yixingense (Z. P. Wang et Q. Z. Xie) C. Y. Wu et S. K. Chen (Jiangsu and Zhejiang); 2. G. cardio spermum Cogn. ex Oliv. (Hubei, Shaanxi and Sichuan); 3. G. microspermum C. Y. Wu et S. K. Chen (S. Yunnan); 4. G. aggregatum C. Y. Wu et S. K. Chen (NW. Yunnan); 5. G.laxiflorum C. Y. Wu et S. K. Chen (Anhui). 相似文献
12.
本文对中国乌头属Aconitum三亚属53种及变种的药用植物进行了比较解剖学的研究。纳出该属植物根部组织构造的6大类型和18种亚型，找出了鉴定乌头类药材的解剖学特征。并结合植物分类学。化学分类学、细胞染色体和毒性，探讨了该属组织构造与植物系统演化之间的相关性。结果表明根部具有较进化的I型和II型构造的植物，含毒性很大的双酯型生物碱，主要存在于乌头亚属乌头组3，5-11系中；较原始的Ⅲ型、Ⅳ型及少数小根类Ⅱ型构造的植物，含毒性较小的阿替生和胺醇类生物碱，主要存在于露蕊乌头亚属和乌头亚属乌头组1—2系；更原始的V型和Ⅵ型构造的植物，含毒性更小的牛扁碱型生物碱，主要存在于牛扁亚属中。本文还从解剖学的角度对乌头属下等级的系统位置作了讨沦。 相似文献
13.
国产乌头属的化学分类 总被引：2，自引：0，他引：2
根据二萜生物碱的类型、生物合成、在乌头属植物中的分布，并参照国产乌头属的系统分类、形态演化和地理分布，本文讨论国产乌头属的化学分类。 1．以牛扁碱型成分为主的牛扁亚属和以乌头碱型成分为主的乌头亚属可能在乌头属进化的初期阶段就已分化，各自沿着独立的道路发展。2．乌头亚属包括以下类群：(1)以阿替生型、维特钦型、乌头碱型胺酵和 酯碱为主的保山乌头系，主要分布于国产乌头属近代发展分化中心之一的横断山脉和金沙江流域，可能国产乌头组的近代分化就是由该系发展而来; (2)以乌头碱、中乌头碱、下乌头碱为主的乌头系，为进化程度较高的群，所含乌头碱及尼奥灵显示了该系与保山乌头系的亲缘关系; (3)以乌头碱和松果灵为主的准噶尔乌头系，所含乌头碱和松果灵显示了该系与保山乌头系的亲缘关系; (4)以滇乌碱类酯碱为主的显柱乌头系和蔓乌头系，为进化程度较高的群，其酯碱有别于乌头碱类。3．以阿替生及C19内酯型为主的甘青乌头系及圆叶乌头系，可能为进化早期形成的高山特化类群。4. 以阿替生和C19乌头碱型胺醇为主的露蕊乌头亚属，可能为特化类群。 相似文献
14.
The present paper, mainly dealing with phytogeographical, Cytological and Palynolo
gical studies on Chinese Stachyuraceae, is the first part of a series of contributions to systematics of this family. As we know, Stachyuraceae, a monogeneric family, is endemic to
East Asia, with a strong differentiation in China. Systematic position of the family is still uncertain. Undoubtedly, multidisciplinary studies on it wisl give a better understanding of plant differentiation in East-Asiatic floristic region and systematic position of the family.
The distribution of all the 9 Chinese species of Stachyurus have been studied on the basis of morphogeographical method. The status of some taxa has been changed as follows: Stachyurus chinensis Franch. ssp. latus (Li) Y. C. Tang et Y. L. Cao, stat. nov. S. chinen-sis Franch. Ssp. cuspidatus (Li) Y. C. Tang et Y. L. Cao, stat. nov. S. chinensis Franch. ssp. brachystachyus (C. Y. Wu et S. K. Chen) Y. C. Tang et Y. L. Cao, stat. nov. S. salicifolius Franch. ssp. lancifolius (C. Y. Wu) Y. C. Tang et Y. L. Cao, stat. nov., S. yunnanensis Franch. var. pedicellatus Rehd. and S. oblongifolius Wang et Tang being reduced as synonyms of S. yunnanensis Franch. From morphological point of view, we would consider that sect. Callosurus is more primitive and its present area might be the preservation center of the family.
In this paper the chromosome numbers of 5 taxa, i.e. Stachyurus yunnanensis, S. chinensis ssp. chinensis, S. chinensis ssp. cuspidatus, S. salicifolius ssp. salicifolius, S. retusus, are reported for the first time. Along with the chromosome countings of S. himalaicus and S. sigeyosii by S. kurosawa, we come to the conclusion that all the species so far studied have 24 small somatic chromosomes (2n=24).
The pollen grains of 6 taxa, i.e. Stachyurus yunnanensis, S. obovatus, S. himalaicus, S. chinensis ssp. chinensis, S. salicifolius ssp. salicifolius, S. retusus were also examined. Together with the observations of G. Erdman and Huang Tsengchien on S. himalaicus, it seems that the pollen grains of the genus Stachyurus are rather uniform in morphology. The pollen grains of sect. Callosurus are tricolporoidate, while those of sect. Stachyurusare tricolporate. Two pollen types, representeb by the two sections, though not strongly distinct, may be considered as further evidence of the validity of the two taxa as section.
Sexuality of flowers is also disscussed in the paper. According to our observationon six species, i.e. Stachyurus yunnanensis, S. obovatus, S. himalaicus, S. chinensis, S. salicifolius, S. retusus, the plants are dioecious, which supports T. Makino's observation on S. praecox and H. Hara's on S. himalaicus. Female flowers have relatively large pistils and short stamens with empty anthers, while male flowers have smaller sterile pistils and longer stamens with well developed anthers. 相似文献
15.
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
16.
潘锦堂 《中国科学院研究生院学报》1988,26(2):120-129
In this paper the classification of the genus Bergenia Moench is provided, its
geographic distribution analysed, and the phylogeny also traced. Based on an analysis of
morphological characters such as leaves, ocreas, branches of inflorescences, Pedicels, hypan-
thium, sepals, and glandular indumentum, thi genus is divided into 3 sections: 1. Sect. Scopu-
losae J. T. Pan, sect. nov., 2. Sect. Bergnia, 3. Sect. Ciliatae (A. Boriss.) J. T. Pan, stat. nov.
The Sect. Scopulosae J. T. Pan may be considered as the primitive one, while Sect. Ciliatae
(A. Boriss.) J. T. Pan may be regarded as the advanced one, with Sect. Bergenia in between.
So far, the genus Bergenia Moench comprises 9 species in the total. Southeast Asia and
North Asia (south and east Siberia, USSR) each have only 1 species, West Asia (Afghanis-
tan) has 2, Central Asia (Kirghizia-Tajikistan-Uzbekstan area, USSR) 3, South Asia 4 (Nepal
has 4, India, Pakistan and Kashmir area each has 3, Bhutan and Sikkim each has 2), East
Asia 6. In East Asia, Mongolia and Korea each have only 1 species, but China has 6 (includ-
ing endemic species 2 and new species 1). Sichuan Province and Xizang Autonomous Region
each have 3, Yunnan Province 2, Shaanxi Province (Qinling Mountains) and Uygur Autono-
mous Region of Xinjiang each have only 1.
Thus the distribution centre of this genus should be in the region covering Si-
chuan, Yunnan and Xizang. Moreover, it is noteworthy that Bergenia scopulosa T.
P. Wang in Sect. Scopulosae seems to have retained primitive characters, for exa-
mple, non-ciliate leaves and ocreas, glabrous pedicels, hypanthium and sepals, and
this primitive species is found in Qinling Mountains and Sichuan. According to the
distribution of the primitive species, the author suggests that the centre of origin of
this genus be in the region covering Qinling Mountains and Sichuan. 相似文献
17.
胡玉熹 《中国科学院研究生院学报》1986,24(6):464-468
作者在扫描电镜下，比较观察了松属l7种2变种针叶角质层内表面的结构特征。结果
表明，针叶角质层内表面的角质颗粒突起与凹陷雕纹变化不甚明显，但胞间凸缘的特征差异较
为显著，如单维管束松亚属(白皮松组除外)为红松型，双维管束松亚属为油松型，而白皮松组
则为白皮松型。此一特征为松属的分类研究，又提供了一个新的证据。
本文综合讨论了松属针叶的结构及角质层内、外表面结构特征，木材解剖，木材管胞内壁
的瘤层特征，树皮显微结构，以及染色体组型分析等资料，作者认为：松属中两个亚属的划分是符合自然的，同时将原属单维管束松亚属中的白皮松组分出来，自成白皮松亚属也是合适的。 相似文献