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1.
乌蒙杓兰及其近亲种 总被引:1,自引:0,他引:1
陈心启 《中国科学院研究生院学报》1985,23(5):369-375
In addition to describing a new species, Cypripedium wumengense, as well
as a new variety, C. bardolphianum var. zhongdianense, nomenclatural and taxonomic
notes are made on its allies and the division to which they belong. They are ltrge]y
found in the Hengduan Mountains in southwestern China, characterized by the absence
of bract, havirg lip more or less covered with small wart-like outgrowths, and that as
the capsule matures the scape becomes much elongated. Six species of this group have
hitherto been reported, of which, however, C. ebracteatum and C. nutans are regarded
here as conspecific with C. fargesii and C. bardolphianum respectively. Thus, including
the new taxa described here, it composes five species and one variety: C. bardolphianum
W. W. Sm. et Farrer (var. bardolphianum and var. zhongdianense S. C. Chen), C. mic-
ranthum Franch., C. fargesii Franch., C. margaritaceum Franch. and C. wumengense
S. C. Chen. They are all grouped here into the same section, Sect. Trigonopedium
(Franch.) Pfitz., the oldest legitimate name of this group in the rank of section. 相似文献
2.
Cypripedium subtropicum S. C. Chen et K. Y. Lang is a phytogeography-
cally significant new species with its habit, inflorescence and column very similar to
those of Selenipedilum of tropical America. It is found in Mêdog of southeastern Xi-
zang, China. Its slender leafy stem bears at the summit a many-flowered raceme, am-
ounting to 1.5 m in height. Although its ovary is unilocular—this is the reason why
we place it in Cypripedium, the column characters resemble those of Selenipedilum. For
example, the staminode is rather small and its long stalk is very similar in texture and
color to the filament of the fertile stamens. Obviously, it is a primitive new species re-
lated to Selenipedilum based on the similarities mentioned above.
In the subfamily Cypripedioideae, as generally recognized, Selenipedilum is the
most primitive genus, from which or whose allies Cypripedium is derived. Of phyto-
geographical significance is the fact that Selenipedilum occurs in Central America and
northern South America, while a cypripedium akin to it is discontinuously distributed
in subtropical Asia. This suggests that Selenipedilum or Selenipedilum-like form be
once continually distributed in North America and eastern Asia when the climate there
was warmer, as it is in the subtropics today. The floristic relationship between Central
America and subtropical Asia appears to be closer than expected, as shown by the dis-
tribution patterns of Tropidia, Erythrodes, etc. Based on the occurrence of all six sec-
tions and particularly the most primitive form in eastern Asia, Cypripedium seems to
be of Asian, rather than Central American, origin. Selenipedilum possesses some very
primitive characters, such as trilocular ovary, vanilla-scented fruit, seed with sclerotic
testa, simple column and more or less suffrutescent habit. The latter is considered by
Dahlgren & Clifford (1982) to be one of ancestral characters of monocotyledons, which
is now very rare not only in Orchidaceae but also in all monocotyledons. It is indeed
necessary to make further investigations on Selenipedilum and also the new species pub-lished here, as well as a detailed comparison between them. 相似文献
3.
Paphiopedilum malipoense S. C. Chen et Tsi is a very interesting new species with its flower similar to that of Cypripedium, especially section Cypripedium. It belongs
to subgenus Brachypetalum, the most primitive group of Paphiopedilum, but differs from
its allied species in hgniva elliptic-lanceolate sepal with cuspidately acuminate apex, rather
narrow petals and horizontal lip, which are of common occurrence in many cypripediums, but
very rare in paphiopedilums. Apparently, this is an intermediate form, or a link, between
Paphiopedilum and Cypripedium, but it does not seem to arise from hybridization between
them, because no Cypripedium has been found wherever Paphiopedilum occurs.
The new species is distributed in southeastern Yunnan of China. In this area, as well
as in river valleys of western Yunnan or the Hengduan Mountains, there have been four
species of the same genus reported before. As we know, the Hengduan Mountains and their
adjacent areas are rich in Cypripedium. The differentiation of the genus there is remarka-
ble. All five sections it contains occur there and three of them are quite distinctive. For
example, the general appearance of the section Bracleosa is dissimilar to that of any other
cypripediums, but closely resembles that of Listera. It appears that the difference between
sect. Bracteosa of Cypripedium and sect. Brachypetalum of Paphiopedilum is not neces-
sarily wider than that between sect. Bracteosa and sect. Cypripedium of the same genus.
Apparently, it is reasonable to consider Paphiopedilum to be an evolutional branch of Cy-
pripedium extending into tropical area, with its primitive group (subgenus Brachypetalum)
still remaining in its northern fringe area. This primitive subgenus has eight species, dis-
tributed from western Yunnan to the Malay Peninsula. Five of them, including the inter-
mediate and primitive form published here, are found in the hilly land of southeastern Yun-
nan and the river valleys of western Yunnan. All these facts suggest its area of origin: the
river valleys of the Hengduan Mountains and the lower hilly land contiguous to the southof them. 相似文献
4.
讨论了北美火烧兰 Epipactis gigantea、卵叶火烧兰 E.royleana和大叶火烧兰 E.mairei之间的异同。过去被许多作者认为是北美火烧兰 E.gigantea和卵叶火烧兰 E.royleana的中国植物实际上应是大叶火烧兰 E.mairei。卵叶火烧兰在中国仅局限于西藏东南部。 相似文献
5.
6.
7.
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
8.
9.
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
10.
报道日本虎舌兰Epipogium japonicum Makino在中国四川西部的新记录,并讨论了该种与虎舌兰E. roseum (D. Don) Lindl.的形态差异。过去将日本虎舌兰处理为虎舌兰的异名是不恰当的。日本虎舌兰间断分布于日本和中国的四川西部高海拔地区及台湾。 相似文献
11.
12.
13.
There are more than 20 species of Calligonum in China, of which 17 are known
from Xinjiang. They are divided into four sections. This paper aims to study the
evolutionary relations of some species of Calligonum in Xinjiang. The chromosome
numbers of 13 species and the anatomic structures of young branch of 8 species have
been examined.
Among 13 species, the, basic chromosome number x=9.9 species are diploids. 4
species are tetraploids.
The evolutionary relations of these plants are arranged as follows:
Section Calligonum (Fisch. et Mey.) Borszcz.
1. C. junceum (Fisch. et Mey.) Litv.
Section Pterococcus (Pall.) Borszcz.
2. C. leucocladum (Schrenk) Bge.
3. C. aphyllum (Pall.) Gürke.
4. C. rubicundum Bge.
Section Calligonum
,. 5. C. cordatum Eug. Kor.
6. C. densum Borszcz.
7. C. klementzii A. Los.
Section Medusa Sosk et Alexandra
8. C. mongolicum Turcz.
9. C. pumilum A. Los.
10. C. ebi-nuricum Ivanova
11. C. arborescens Litv.
12. C. caput-medusae Schrenk 13.C. roborovskii A. Los. 相似文献
14.
陆树刚 《中国科学院研究生院学报》1993,31(4):385-391
本文研究云南产鳞毛蕨属植物的属下分类并列出所有的种类。该属植物在云南现知至少有88种,属下可划分为3个亚属和12个组。为了使这些类群之间的特征轮廓清晰,本文提供了分亚属及分组的检索表。 相似文献
15.
潘锦堂 《中国科学院研究生院学报》1986,24(3):203-214
This paper deals with the taxonomy and geographic distribution of the ge-
nus Chrysosplenium L. in China.
Based on the characters and evolution of the seed, capsule, disk, ovary and leaf, the
species of this genus can be grouped into 2 subgenera, 5 sections and 16 series. There
are 2 subgenera, 5 sections and 11 series in China. They are as follows:
I. Subgen. Gamosplenium Maxim. emend. J. T. Pan
Leaves alternate.
Lectotype: Chrysosplenium carnosum Hook. f. et Thoms.
1. Sect. Alternifolia Franch. emend. J. T. Pan
Seeds smooth and glabrous.
Type: Chrysosplenium alternifolium L.
(1) Ser. Nudicaulia Maxim. emend. J. T. Pan
Disk obscure or absent; ovary nearly half-inferior, sometimes mostly inferior; cap-
sule generally subtruncate and emarginate at top and bilobed with equal and horizontal-
ly divaricate or suberect lobes; seeds smooth and glabrous.
Type: Chrysosplenium nudicaule Maxim.
(2) Ser. Alternifolia Maxim. emend. J. T. Pan
Disk 8-lobed; ovary nearly half-inferior; capsule generally subtruncate and emar-
ginate at top, and bilobed with equal and horizontally divaricate lobes; seeds smooth
and glabrous.
Type: Chrysosplenium alternifolia L.
2. Sect. Nephrophylloides Turcz.
Seeds minutely papillose or pilose.
Type: Chrysosplenium sedakowii Turcz.
(1) Ser. Macrophylla Franch. emend. J. T. Pan
Disk obscure or absent; ovary nearly half-inferior; capsule nearly truncate and em-
arginate at top, and bilobed with equal lobes; seeds minutely papillose.
Type: Chrysosplenium macrophyllum Oliv.
(2) Ser. Ovalifolia Maxim. emend. J. T. Pan
Disk generally 8-, rarely 4-, lobed, papillae absent around disk; ovary mostly infe-
rior; capsule subtruncate and emarginate at top; seeds minutely papillose or pilose.
Type: Chrysosplenium ovalifolium M. Bieb. ex Bunge
(3) Ser. Lanuginosa Hara, emend. J. T. Pan
Papillae numerous, brown around reduced disk; ovary mostly inferior; capsule ne-
arly truncate and emarginate at top; seeds minutely papillose.
Type: Chrysosplenium lanuginosum Hook. f. et Thoms.
II. Subgen. Chrysosplenium
Leaves opposite.
Type: Chrysosplenium oppositifolium L.
1. Sect. Trichosperma J. T. Pan, sect. nov.
Capsule not truncate at top, and bilobed with subequal, suberect or divergent lobes.
Type: Chrysosplenium trichospermum Edgew. ex Hook. f. et Thoms.
This section is divided into 4 series in the world, with only 1 in China.
(1) Ser. Nepalensia Maxim. emend. J. T. Pan
Disk obscure or absent; ovary generally mostly inferior; cassule not truncate at
top, and bilobed with subequal and suberect or divergent lobes; seeds smooth and gla-
brous.
Type: Chrysosplenium nepalense D. Don
2. Sect. Grayana J. T. Pan, sect. nov.
Capsule bilobed with distinctly unequal and ascending lobes.
Type: Chrysosplenium grayanum Maxim.
This section consists of 4 series in the world, with 3 series in China.
(1) Ser. Sinica Maxim. emend. J. T. Pan
Disk obscure or absent; ovary nearly half-superior; capsule bilobed with distinctly
unequal and ascending lobes; seeds minutely papillose.
Type: Chrysosplenium sinicum Maxim.
(2) Ser. Esulcata Franch. emend. J. T. Pan
Disk (4)-8-lobed; ovary generally half-inferior; capsule bilobed with unequal and
ascending lobes; seeds minutely papillose or pilose.
Lectotype: Chrysosplenium dubium J. Gayex DC.
(3) Ser. pilosa maxim. emend. J. T. Pan
Disk obscure or absent; ovary nearly half-inferior; capsule bilobed with distinctly
unequal and ascending lobes; seeds distinctly longitudinally ll-18-costate and minu-
tely papillose or tuberculate on the ridge.
Type: Chrysosplenium pilosum Maxim.
3. Sect. Chrysosplenium
Capsule nearly truncate and emarginate at top, and bilobed with equal and horizon-
tally divaricate lobes.
Type: Chrysosplenium oppositifolium L.
(1) Ser. Romosa J. T. Pan, ser. nov.
Disk distinctly 8-lobed, papillae sparse, brown around disk; ovary mostly inferior; ca-
psule nearly truncate and emarginate at top, and bilobed with equal and horizontally
divaricate lobes; seeds smooth and glabrous.
Type: Chrysosplenium ramosum Maxim.
This series is monospecific one, also occurring in China, namely C. ramosum Maxim.
(2) Ser. Delavayi Hara
Disk distinctly 8-lobed, Papillae sparse, brown around the disk; ovary mostly infe-
rior; capsule nearly truncate and emarginate at top, and bilobed with equal and hori-
zontally divaricate lobes; seeds distinctly longitudinally 10-16-costate and transverse-
ly striate on the ridge.
Type: Chrysosplenium delavayi Franch.
This series can be considered as the most advanced one in the Chrysaspleninm L.
So far, the Chrysosplenium L. comprises 64 species in the world, among which 1 spe-
cies is found in North Africa, 2 in South America, 4 in Europe, 5 in North America, 56
in Asia, of which 3 occur in Sikkim, 5 Bhutan, 5 Mongolia, 6 north Burma, 6 Korea, 7
north India, 8 Nepal, 12 Japan, 17 U.S.S.R. (of which 3 also in Europe), 34 China (in-
cluding 22 endemic species and 3 new species).
In China, Fujian and Guangdong Provinces and Zhuang Autonomous Region of Gu-
angxi each has only 1 species, Taiwan, Zhejiang, Shanxi and Hebei Provinces and Uy-
gur Autonomous Region of Xinjiang each has 2, Anhui, Jiangxi and Hunan Provinces
each has 3, Qinghai Province 4, Heilongjiang, Liaoning and Guizhou Provinces each has
5, Jilin and Hubei Provinces each has 6, Gausu Province 8, Shaanxi Province and Xi-
zang (Tibet) Autonomous Region each has 10, Yunnan Province has 11, Sichuan Provi-
nce has 14.
Thus the distribution centre of this genus should be in the north temperate zone
of Asia, and the region covering Shaanxi Gansu, Sichuan, Yunnan and Xizang may be
regarded as an important part of this centre.
The 7 species of Ser. Nudicaula Maxim. emend. J. T. Pan can be considered as the
most primitive ones in this genus. They are mostly distributed in Shaanxi (Qin Ling),
south Gansu, southeast Qinghai, southwest Sichuan and nothwest Yunnan of China. This
region may be considered as the centre of the origin (or at least differentiation) of this
genus.
The new species and the new varieties described in this paper are as follows: C. hy-
drocotylifolium Levl. et Vant. var. emeiense J. T. Pan, C. taibaishanense J. T. Pan, C.
lixianense Jien ex J. T. Pan, C. qinlingense Jien ex J. T. Pan. 相似文献
16.
在对竹亚科散生竹全面研究基础上,本文对酸竹属进行了系统的整理和研究,讨论了本属与相近属之间亲缘和区别。本文确认有6种,其中有1新组合和5个新异名。 相似文献
17.
徐克学 《中国科学院研究生院学报》1993,31(6):578-586
本文是“分支分类的一种计算方法—最大同步法”一文的姐妹篇。两种方法运算过程基本相同,
不同之处乃是最小平行进化法利用平行进化的概念,首先确立两个分支单位相结合时产生平行进化
的步数,即平行进化系数的计算公式,对所有待结合分支单位间计算平行进化系数。然后根据俭约性
原理,要获得最俭约演化树谱图,应该尽可能减少平行进化,也就是说在选择结合的分支单位时,
选择平行进化系数最小者优先结合。于是建立起一种新的分支分类运算方法。两种方法的思路完全不
同,从原理上讲对某些数据,最小平行进化法优于最大同步法,但后者运算量较大。如果将两种思路
兼顾,可以得出由这两种方法相结合而产生平行同步综合法.桔梗科6个种的数据作为例子进行运算说明。 相似文献