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1.
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
2.
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
3.
4.
中国樟科植物的地理分布 总被引:1,自引:0,他引:1
李锡文 《中国科学院研究生院学报》1979,17(3):24-40
From the study of the geographical distribution of Chinese lauraceous genera and
species, we may concludely obtained some results as follows:
1) Lauraceous family is a pantropical one in distribution, sometimes it may be
reached to the subtropical or temperate zone. There are 18 genera in China natively.
Among them 17 genera are of the tropical distribution-pattern. The tropical Asia dis-
tribution-pattern, i.e. Indo-malaysian distribution-pattern, is the nucleus of Chinese
lauraceous flora. Only 1 genus is of temperate distribution-pattern, i.e. the East Asia-
North America distribution-pattern. From the analysis of the primitive forms and the
concentration of species in these genera, we may regard that: a) All genera of the
tropical distribution-pattern were originated at Gondwana in the past period. South-
western and Southern China may be the birth-land of some genera of tropical distribu-
tion-pattern because it was the northern boundary of Gondwana in the past period.
b) The genus of temperate distribution-pattern may be originated in the montane
region of Western or South-western China.
2) Yunnan, Guangdong, Guangxi and Sichuan are the provinces having laura-
ceous species in abundance. But the provinces having lauraceous endemic species in
abundance are Yunnan, Guangdong, Taiwan,, Guangxi and Sichuan. In general Chinese
lauraceous plants are distributed mainly in south-western and southern parts of China.
The southeastern and southern parts of province Yunnan are of great abundance in
lauraceous species or endemic species. The species amount of lauraceous species in
these two parts of Yunnan is 67.3% of the total species amount of the lauraceous
flora in that province. It may be explained by the fact that a) where it is of existence
of primary forest, b)of great specific endemism in the rocky region and c) the
passway in migration of lauraceous plant from east to west or reverse.
3) The great similarity of lauraceous flora between Yunnan (especially its
western or north-western part) and Xizang (especially its southern or south-eastern
part), as well as between Guangdong and Guangxi, may be exhibited by the background
in perfect harmony of each own flora with environment in the past period. The en-
demism of lauraceous flora in Taiwan and Hainan is manifest from the standpoint of
island's isolation. But the latter is of a more manifest one, because it is situated at
the southern latitude and is more adaptive to the development of lauraceous plant.
4) The deciduous species of lauraceous plant which are the principal elements
in the flora of subtropical or temperate zone, are mainly of inland distribution-pattern.
Their geographical distribution are more concentrated at the montane region of
Western or South-western China. Where it may be the birth-land of the subtropical
or temperate lauraceous species, or even of the whole temperate flora.
相似文献
5.
朗楷永 《中国科学院研究生院学报》1990,28(5):356-371
兰科在横断山地区是维管束植物中的大科之一,共有91属,363种及9变种。 4属为我国特有属,其中1属为本地区所特有;155种及9变种为我国特有种。 其中69种及5变种为本地区所 特有。本文对属、种进行了分析,并对全部种的分布格局作了详细的介绍,概述了本地区兰科植物的区系组成及特点。本文从兰科植物属、种的分布提出了四川峨眉山是东亚植物区中划分中国-喜马拉雅植物亚区和中国-日本植物亚区的分界线上的一个重要的点的看法。 相似文献
6.
本文根据植物类群的系统发育和地理分布统一的原理,讨论了獐牙菜属植物的起源、散布和分
布区的形成。獐牙菜属包括11组16系154种,间断分布在亚洲、欧洲、北美洲和非洲。中国西南部-
喜马拉雅地区汇集了大多数种类、不同演化水平的类群以及形形色色的特有类群,成为该属的多样化
中心和多度中心。该属的原始类群和外类群也集中分布在中国西南山地,极有可能是该属的起源地。该
属的分布区类型中出现了各式的间断分布,根据有该属植物分布的大陆间及大陆与岛屿间分离和连接
的时间推测,该属的起源时间至少不会晚于晚白垩纪,也许更早,可追溯到中白垩纪。通过分类群间亲
缘关系和现代分布分析,显示出该属植物从起源地向周围和一定方向散布,形成了三个主要散布途径。在散布过程中植物本身也发生演化和就地特化,形成新的类群。 相似文献
7.
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
8.
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
9.
秦仁昌 《中国科学院研究生院学报》1964,9(1):31-36
The fern genus Diplaziopsis C. Chr. of Index Filicum has long been considered as
a monotypic one, with the sole species, D. javanica (B1.) C. Chr. from tropical Asia. In
1906, H. Christ described a second species, Allantodia cavaleriana Christ (=D. cavale-
riana C. Chr.) from Kweichow, West China, but this was since not fully recognized by
fern students in general, being often considered as a variety of the first species. This
is certainly a mistake, as is shown by ample herbarium specimens today. In the recent
work on the genus, the writer has found among the herbarium material two additional
new species from China, thus bringing the genus up to four species in Asia, mainly from
China, where, as it is, the genus has its center of development from the long past.
Phylogenetically, Diplaziopsis C. Chr. represents one of the offshoots from the great
stock of diplazioid ferns, of which the genus Diplazium Sw. constitutes the main body
of the group and from which our genus differs chiefly in its leaves of a thin texture with
reticulated venation, but not so much in its type of indusium as it has generally been
emphasized by most botanists in the past, for, as it is, the type of indusium in Di-
plaziopsis also prevails in many species of Diplazium, for which C. B. Clarke (Trans.
Linn. Soc. ser. 2, Bot. I:495, 1880) created, but really superfluously, a subgenus Pseudal-
lantodia, about which the writer will dwell in another paper in the near future. Suffice
it to say here that the indusium in Diplaziopsis as revealed by the species treated here
is, indeed, typical of diplazioid ferns, only often, as it happens, with its adaxial edge
pressed so tight under the expanding sorus that it is unable to open freely along its upper
free edge and, as a result, its thin vaulted back bursts open from the pressure of the ex-
panding sorus underneath.
As a result of the present study, following four species of the genus have been re-
cognized.
Diplaziopsis javanica (B1.) C. Chr. Ind. Fil. (1905) 227.
Wide spread in tropical Asia, northwardly to Bakbo and the southern part of Yun-
nan, China.
D. cavaleriana (Christ) C. Chr. Ind. Fil. Suppl. I (1913) 25.
Ranges from West China through northern part of Fukien of East China to Japan.
D. intermedia Ching, sp. nov.
Endemic in West China: Mt. Omei, Szechuan, and Kweichow.
D. hainanensis Ching, sp. nov.
In conclusion, it may be pointed out that with the modern plant taxonomy pursued
in a more efficient manner than in the past, and especially by the introduction of the
cytotaxonomic methods, the so-called “monotypic genera”, as conceived by the orthodox
systematists, will continue to prove, to a great extent, to be lack of enough scientific
ground. The fact that the “monotypic genus” of Diplaziopsis C. Chr. is now found to
be a genus of four well-defined species is once again an instance to illustrate the pointat issue. 相似文献
10.
中国山矾科的初步研究(续) 总被引:1,自引:0,他引:1
吴容芬 《中国科学院研究生院学报》1986,24(4):275-291
This paper is a preliminary study on the morphology, taxonomy and geog-
raphy of Symplocaceae, following the system of H. P. Nooteboom and H. Handel-Maz-
zetti et E. Peter-Stibal, who divided the genus into two subgenera according to the floral
characteristics. But I disagree with Nooteboom's unduly broad specific concept, and
adopt Handel-Mazzetti et Peter-Stibal's concept, which usually treated the species of
this family according to their habitats in regions in a relatively narrow sense. The ge-
nus is divided in the present paper into two subgenera, six sections, among which two
are new. Nine new species and three new varieties are described in this paper. Discus-
sions on some taxa are also presented.
The family Symplocaceae consists of 300 species in the whole world. They are dis-
tributed mainly in tropical and subtropical Asia, Oceania and America. In China there
are about 77 species widely distributed in the south-western and south-eastern parts,
with only one species, namely Symplocos paniculata (Thunb.) Miq. extending northward
to north-eastern part. 相似文献