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国产三角瓣花属(茜草科)订正 总被引:1,自引:0,他引:1
阮云珍 《中国科学院研究生院学报》1988,26(6):443-449
三角瓣花属Prismatomeris Thw.在Hooker(1873)和K.Schumann(1891)的茜草
科分类系统中隶于巴戟族Morindeae Miq.但在 Bremekamp(1966年)的分类系统中,其分类
位置未定。本属的胚根下位,花冠裂片镊合状排列和具针晶等特征与巴戟族相同,但它的花
离生,子房2室,胚珠盾形而着生于子房隔膜上半部等特征则与巴戟族明显不同。 因此,
将本属分立作族并置于Bremekamp所定界的茜草亚科Rubioideae中似乎较合适。 本文还提
供了经挑选的本属10对特征及其分类价值的说明。辨别了两个种:(1)将分布于中国的P.
tetrandra(Roxb.)K.Schum. 修订为 “P.tetrandra (Roxb.) K. Schum. subsp. multiflora
(Ridley,)Y.Z.Ruan”. (2)P. connata Y. Z. Ruan 被记述作新种它的热带新亚种是 P. connata Y. Z. Ruan subsp. hainanensis Y. Z. Ruan。 相似文献
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林来官 《中国科学院研究生院学报》1966,11(3):263-342
The genus Eurya was established by Thunberg in 1783 on a Japanese species E.
japonica. Several decades later, many authors had made more or less intensive study on
this genus. But in the earlier period, the different autherities had no clear conception of
the genus. Thus Szyszylowicz (1893), Engler (1897) and Melchior (1925) entertained
a much broader conception of this genus, including Freziera and Cleyera, both of which
are now considered as distinct genera. A. Gray (1855), Vesque (1895), Urban (1896),
and Kobuski (1935-37), however, concentrated their study only on the now accepted
genus Eurya. Recently, a more detailed study of Chinese Eurya was made by Chang
Hung-da (Acta Phytotax. Sin. 3 (1954) 1-59). But all of these authors did not sub-
divide this genus into more than subgenera except Vesque, who used the number of
stamens and the septation of the anther cells to further subdivide this genus into 4 sec-
tions.
In the present treatment, we base on the following characteristics to make sub-
divisions: the number of stamens, the septation of the anther cells, the hairness of the ovary,
the length of the style, the shape and texture of the sepals, and the shape and hairness
of the young branchlets. We assume that the morphology of the flowers has the following
evolutionary tendencies: stamens from large (28) to small (5) numbers; anther cells from
septate to nonseptate; ovary from being hairy to glabrous, styles from 5-4 free to 3 and
more or less connate, from 2-6 mm to 0.5-1 mm long, and ovules from many (60)
to few (2-4) in each cell.
The genus Eurya has now about 140 species, being divided into 2 subgenera: Subg.
Ternstroemiopsis Urban, with 2 species endemic in Sandwich Islands and Subg. Eurya with
138 species, in Asiatic tropic and subtropic regions and southwestern Pacific Islands.
According to the characteristics mentioned above, we divide the second subgenus into 2
sections and 8 series, as follows:
(I) Sect. Meristotheca Vesque (II) Sect. Eurya
Ser. Ciliatae Hu et L. K. Ling Ser. Longistylae Hu et L. K. Ling
Ser. Trichocarpae Hu et L. K. Ling Ser. Rigidisepalae Hu et L. K. Ling
Ser. Tetragonocladae Hu et L. K. Ling Ser. Nitidae Hu et L. K. Ling
Ser. Muricatae Hu et L. K. Ling Ser. Brevistylae Hu et L. K. Ling
In China, the subgenus Eurya distributes east from Taiwan, west to the western part
of Szechuan and Yunnan, and south from Hainan, north to the southern slope of Tsin-ling
Range. The region north from southern part of Nan-ling Range, southwest to southeast
Yunnan, south to northern part of the Peoples Republic of Vietnam, seems to be the centre
of both maximum variety and frequency of this subgenus, for the number of species and
the representatives of more primitive taxa in this region are much richer than in any
other regions of the world. From this centre going northeast to Japan and Korea, west
to eastern part of India, south to Java and Sumatra, north to the southern slope of Tsin-
ling Range, the number of species and types gradually decreases, and especially the primi-
tive series and species rapidly disappear. In addition, many species are also found in the
Island of Irian, which we incline to consider as another young centre of development for
this subgenus. Furthermore, according to the distribution of quite a large number of the
species in China, we can recognize several boundary lines which are in agreement with the
limits of the floristic and geobotanic provinces of China.
In this article we have enumerated 80 species, and 11 varieties of the genus Eurya
of China, among which are published for the first time 11 new species and 1 new variety,
one species, E. persicaefolia Gagnepain, is first recorded from China, a number of specific
names have been restored and a number reduced to synonyms. They are as follows:
Restored species:
Eurya acuminatissima Merrill & Chun
E. patentipila Chun
E. henryi Hemsley
Reduced to synonyms:
Eurya parastrigillosa Hsu ( E. patentipila Chun)
E. changii Hsu (E. fangii var. megaphylla Hsu)
E. chienii Hsu (E. persicaefolia Gagnepain)
E. hwangshanensis Hsu (E. saxicola Chang)
E. fangii Rehd. var. glaberrima Hsu (E. cavinervis Vesque)
E. pseudopolyneura Chang (E. impressinervis Kobuski)
E. longistyla Chang (E. stenophylla Merrill)
E. huiana Kobuski f. glaberrima Chang (E. muricata Dunn)
New combination:
Eurya muricata Dunn var. huiana (Kob.) Hu et L. K. Ling E. aurea (Levl.) Hu et L. K. Ling 相似文献
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林祁 《中国科学院研究生院学报》2000,38(2):167-181
根据对18个国家和地区120个标本馆收藏的万余份八角属植物标本的研究,提出3个新组合,对13个种、6个亚种、3个变种和2个变型作了归并,确认全世界现有八角属植物34种3亚种和1变种。 相似文献
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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
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多蕊石灰树属与花楸属在性状上没有明显区别,故应予以合并。提出了墨脱花楸Sorbus medogensis 这一新名称。 相似文献
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