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1.
Lu Rui-Lin 《植物分类学报:英文版》1989,27(1):71-74
In the present paper a new species, Osmanthus gracilinervis Chia ex R. L.
Lu, is described from Guangxi. The new species is also distributed in Guangdong, Jiangxi,
Zhejiang, Hunan and Sichuan. Based on the analysis of a great deal of specimens, eight species, i.e. Osmanthus corymbosus H. W. Li, O. longispermus H. T. Chang, O. angustifolius H.
T. Chang, O. triandrus H. T. Chang, O. longicarpus H. T. Chang, O. omeiensis Fang ex H.
T. Chang, O. nanchuanensis H. T. Chang and 0. cylindricus H. T. Chang, are reduced as
the synonyms of O. marginatus (Champ. ex Benth.) Hemsl. var. marginatus. O. longissimus
H. T. Chang and O. pachyphyllus H. T. Chang are respectively reduced to varieties of O.
marginatus, i.e.O. marginatus var. longissimus (H.T. Chang) R. L. Lu and var. pachyphyllus (H. T.Chang) R. L. Lu. And finally O. maximus H. T. Chang is treated in this
paper as a synonym of O. matsumuranus Hayata. 相似文献
2.
分布于日本和中国的鹅观草及其杂种的形态学和细胞学研究 总被引:10,自引:0,他引:10
本文对分布于日本的Agropyron tsukushiense (Honda) Ohwi var. transiense (Hack.) Ohwi (2n=6x=42)和分布于中国的Roegneria kamoji Ohwi (2n=6x=42)及其杂种F_1(2n=6x=42)进行了形态学及细胞学的研究,并同时探讨了亲本种的亲缘关系。总体来看,亲本材料之间在形态上虽有差异但并不十分显著。杂种F_1的形态特征介于其父、母本之间。在减数分裂过程中,亲本种和杂种F_1的染色体配对行为均十分正常。但在检查了大量的成熟花粉和穗状花序之后,发现杂种F_1有部份不育现象。上述研究结果表明A. tsukushiense var. transiens的三个染色体组与R. kamoji的三个染色体组同源。结合形态学和育性等方面的研究资料,作者认为上述两个材料仍应属于同一分类等级。但必须指出,由于长期的地理隔离,他们之间产生了一定的形态变异和生殖障碍。按照国际植物命名法规(ICBN)上述两个材料应组合为:Roegneria tsukushiensis (Honda) B. R. Lu, Yen et J. L. Yang及其变种var. transiens (Hack.) B. R. Lu, Yen et J. L. Yang comb. nov. 相似文献
3.
近年来对我国9个省的悬钩子属植物资源进行了调查采集,并在南京中山植物园建立了田间种质库进行观察研究。本文报导在云南省悬钩子资源调查中发现的1个新种和5个新变种,它们是:Rubus godongensis Gu et Li, R. biflorus Buch.-Ham.ex Smith var.spinocalycinus Gu et Li, R. glabricarpus Cheng var.eglandulosus Gu et Li, R. gongshanensis Yü et Lu var.eglandulosus Gu et Li, R. parvifolius L.var.purpureus Gu et Li, R. viburnifolius Focke var.apetalus Gu etLi. 相似文献
4.
利用扫描电镜对安徽省栽培的莴苣Lactuca sativa及其变种的果实进行观察,结果发现涡阳县义门镇特产的苔菜既不同于莴笋L.sativa var.angustata,也不同于莴苣,应将其建立在莴苣种下作为新变种苔菜L.sativa L.var.yemensis X.S.Shen et R.L.Lu var.nov.更为合适。 相似文献
5.
Seven new taxa, including one new section, three new species and three new varieties,
are described; one new name, Ligularia pojarkovana S. W. Liu et T. N. Ho, and one new combination, Ligularia liatroides (C. Winkl.) Hand.-Mazz. var. shifangensis (G. H. Chen et W. J.
Zhang) S. W. Liu et T. N. Ho are made; five species are mentioned as new records. The seven
new taxa are Youngia sect. Cyanoglossa S. W. Liu et T. N. Ho, Youngia zhenduoi S. W. Liu et
T. N. Ho, Y. cyanea S. W. Liu et T. N. Ho, Mulgedium qinghaicum S. W. Liu et T. N. Ho,
Cremanthodium campanulatum (Franch.) Diels var. flavidum S. W. Liu et T. N. Ho, Ligularia
amplexicaulis DC. var. nepalensis S. W. Liu et T. N. Ho, and L. paradoxa Hand. Mazz. var.palmatifida S. W. Liu et T. N. Ho. 相似文献
6.
7.
国产赖草属(禾本科)两个类群的修订 总被引:1,自引:0,他引:1
根据标本研究、野外考察和实验观察,对国产赖草属Leymus两个类群进行了分类修订,将阿尔金山赖草Leymus arjinshanicus D.F.Cui和L.aerginshanicus D.F.Cui ssp.ruoqiangensis(S.L.Lu&Y.H.Wu)D.F.Cui处理为若羌赖草L.ruoqiangensis S.L.Lu&YH.Wu的新异名,将纤细赖草L.secalinus(Georgi)Tzvel.var.tenuis L.B.Cai提升为一个独立的种L.tenuis(L.B.Cai)L.B.Cai. 相似文献
8.
Lu Sheng-Lien 《植物分类学报:英文版》1992,30(6):529-540
Some new taxa of the genus Festuca (Gramineae) are described
from China. They are Sect. Longiglumes S.L. Lu,Sect. Muticae S.L. Lu, Sect.
Sinensis S.L. Lu, Sect, Nitidulae S.L. Lu, and Festuca pubiglumis S.L. Lu, F.
longiglumis S. L. Lu, F.fascinata Keng, F. mutica S.L. Lu, F. sinensis Keng, F.
subalpina Chang et Skvort. ex S.L. Lu, F. chelungkingnica Chang et Skvort. exS.L. Lu. In addition, one new name F. taiwanensis S.L. Lu is included. 相似文献
9.
10.
11.
Kengyilia Yen et J L Yang is a recently established genus in trib. Tritieeae of
Poaceae. In this paper, this genus is taxonomically revised, and a new taxonomic system is
presented. The new system includes 3 sections, 26 species and 6 varieties, of which 3 sections and 1 species are described as new, 7 taxa are treated respectively in the ways of new
status or combination and reduction. Three new sections, sect. Kengyilia, sect. Stenachyra L. B. Cai and sect. Hyalolepis (Nevski) L. B. Cai, are differentiated by the
length and width of spike, the growing position of spikelet, the relative length of glume, the
colour of anther and so on. The sect. Kengyilia contains 9 species, distributed in northwestern China, extending westward to Kazakhstan, Kirghizia, Tadzhikistan, Afghanistan and Iran; the sect. Stenachyra L. B. Cai comprises 10 species and 3 verieties, distributed in
western China, mainly in the Qinghai-Xizang Plateau; and the sect. Hyalolepis (Nevski)
L. B. Cai consists of about 7 species and 3 varieties, distributed in western China, extending
westward to Kirghizia and Tadzhikistan. Twenty-six species of Kengyilia are recognized on
the basis of the same criterion of specific concept, and the other taxa below the rank of
species are also checked in terms of their external morphology. As a result, Kengyilia pen~
dula L. B. Cai is reported as a new species; K. hirsuta var. obviaristata L. B. Cai is
raised to a species; K. melanthera (Keng) J. L. Yang, Yen et Baum is reduced to a variety under K. thoroldiana (Oliver) J. L. Yang, Yen et Baum; Roegneria hirsuta var. leiophylla Keng et S. L. Chen is reduced as a synonym of K. hirsuta var. hirsuta; Agropyron thoroldianum var. lasciusculum Melderis is reduced to K. grandiglumis (Keng et S.
L. Chen) J. L. Yang, Yen et Baum; Roegneria rigidula var. intermedia Keng et S. L.
Chen to K. rigidula (Keng et S. L. Chen) J. L. Yang, Yen et Baum; R. hirsuta var.
variabilis Keng et S. L. Chen and R. rnelanthera var. tahopaica Keng et S. L. Chen to
K. hirsuta (Keng et S. L. Chen)J. L. Yang, Yen et Baum. In addition, new records onthe geographical distributions of some taxa are also reported in this paper. 相似文献
12.
13.
中国桑寄生科植物资料(三) 总被引:1,自引:0,他引:1
作者在编著《FloraofChina》Loranthaceae过程中,据近年采集的标本和花粉形态研究,修订了《中国植物志》第24卷的桑寄生科。现报道钝果寄生属(Taxilus)二个新分类单位:油杉钝果寄生T.reni,狭叶钝果寄生T.liquidambaricolusvar.nerifolius的描述和枫香钝果寄生T.liquidambaricolusvar.liquidambaricolus及显脉钝果寄生T.caloreasvar.fargesi的地理分布区等;另有梨果寄生属(Scurrula)一个新组合:藏南梨果寄生S.buddleioidesvar.heynei。 相似文献
14.
15.
鹅观草属五个类群的核型与进化 总被引:8,自引:0,他引:8
报道了鹅观草属5个类群的核型,即长芒鹅观草,核型2n=4x=28=22m+6sm(2SAT);短颖鹅观草,核型2n=4x=28=20m(2SAT)+8sm(2SAT);短柄鹅观草,核型2n=4x=28=22m(2SAT)+6sm;纤毛鹅观草,核型2n=4x=28=20m+8sm(4SAT);毛盘鹅观草,核型2n=4x=28=18m+6sm(4SAT)+4st。同时,通过核型重要性状的递变分析,揭示了鹅观草属5个类群的相对进化程度以及宏观分类中4个组的系统发育关系,表明鹅观草属的半颖组在系统发育中可能既派生了颖体短小的小颖组,又派生了颖体长大的大颖组和长颖组。 相似文献
16.
RAMARIA SUBGENERA RAMARIA AND LAETICOLORA IN YUNNAN 总被引:5,自引:1,他引:4
Ronald H.Petersen 《云南植物研究》1989,(4)
Three taxa of Ramaria subgenus Ramaria, and 18 of subg. Laeticolora are reported from Yunnan Province. Of these 13 are considered new to science. Only one taxon (R. formosa) is considered of widespread distribution, the others being known olay from the Indo-Asian subcontinent. Wide distribution patterns, based on phenetic similarity, seem to be at the infraspecific to species complex level, but only rarely contaxie. New taxa are as follows: subg. Ramaria: R. eryuanensis; subg. Laeticolora: R. brunneipes, R. distinctissima, R. ephemeroderma, R. hilaris, R. lacviformosoides, R. linearioides, R. linearis, R. nanispora, R. rubri-attenuipcs, R. sino-conjunctipes, R. rubricarnata var. laeta, R. botrytoides var. microspora, and R. neoformosa var. sinensis. Keys to Yunnan taxa of Ramaria subgenera Ramarla and Laeticolora are furnished. 相似文献
17.
Muhittin Dinç Süleyman Doğu Bilgehan Bilgili Ahmet Duran 《Nordic Journal of Botany》2009,27(3):251-256
Teucrium creticum L. and T. orientale L. var. orientale are two related taxa in Teucrium sect. Teucrium . In this study, the value of anatomical and micromorphological characters for distinguishing between these two taxa is analysed. Transverse sections of the stem, as well as both transverse and surface sections of the leaves were examined anatomically. According to the data obtained, collenchyma and sclerenchyma do grow more in T. creticum than in T. orientale var. orientale . The leaves of T. creticum are hypostomatic and have a characteristic hypodermis, which is under the upper epidermis, as well as abundant spherocrystals in the upper epidermis. The leaves of T. orientale var. orientale are amphistomatic, yet no spherocristals exists in epidermal cells and the hypodermis is absent. The results obtained from studies carried out under scanning electron microscope (SEM) shows that the nutlet micromorphology varies between the two taxa. In both taxa, the nutlet surfaces are reticulate and glandular. Eglandular hairs do occur. However, in T. orientale var. orientale , 20–60 μm long eglandular hairs with scabrid surface occur only along the margins of the nutlets, whereas the ¾ dorsal sides of the nutlets in T. creticum are all covered with 90–500 μm long, smooth-surfaced hairs. Additionally, while the glandular hairs on the nutlets of T. creticum are subsessile, those on the nutlets of T. orientale var. orientale are capitate and distinctly stalked. 相似文献
18.
对青藏高原高山冰缘地区毛茛科3种特有植物的核型进行了分析。它们的核型公式(K)、染色体相对长度组成(C.R.L.)和核型不对称系数(As.K%)分别为:青藏金莲花Troliuspumilusvar.tanguticus:K(2n)=6m+8sm(2SAT)+2st,C.R.L.=4L+4M2+4M1+4S,As.K%=63.57,核型属2B型;甘青乌头Aconitumtanguticum为K(2n)=6m+10sm,C.R.L.=4L+8M1+4S,As.K%=62.54,2B型;单花翠雀花Delphiniumcandelabrumvar.monanthum为K(2n)=6m+8sm+2st,C.R.L.=4L+4M2+4M1+6S,As.K%=64.34,属3B型。经同相关近缘种核型资料比较,青藏金莲花核型不对称性和进化程度比金莲花T.chinensis低;甘青乌头的核型不对称性和进化程度在其近缘类群(乌头组Sect.Aconitum)已报道的种之内最低;单花翠雀花核型不对称性和进化水平比翠雀组(Sect.Delphinastrum)已报道的展毛翠雀花D.kamaoensevar.glabrescens、 相似文献
19.