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1.
从爵床科马来叉桂花植物的叶中分离到一个新甜味甙I,通过波谱分析(UV,IR,GLC,1H-NMK.13C-NMK,2D-NMK和MS)及衍生物的研究,其结构鉴定为3-O-β-D-吡喃木糖基-(1→2)-β-D-吡喃葡萄糖醛酸基-3β,21β,22β,23,29-五羟基齐墩果-12-烯-21-O-α-(2,3,4-O-三乙酸基)-L-鼠李糖甙.命名为马来叉柱花素(strogin)(I).  相似文献   

2.
报道中国兰科叉柱兰属一新记录种——匍匐叉柱兰(Cheirostylis serpens Aver.)。该种以附生小草本,茎匍匐状,叶无柄,唇瓣白色,及向内卷缩的肉质边缘增生将唇瓣分为明显的上下两个唇而与其他种类相区别。  相似文献   

3.
Staurogyne diandra E. Hossain具能育雄蕊2枚,与叉柱花属(Staurogyne Wall.)能育雄蕊4枚的特征不符,而应属于蛇根叶属(Ophiorrhiziphyllon Kurz)。因此提出新组合——越南蛇根叶(Ophiorrhiziphyllon diandra (E. Hossain) H. J. Xin, D. V. Hai & Y. F. Deng)。  相似文献   

4.
本文报道了中国南部爵床科(Acanthaceae)植物。其中包括四个新种和一个新组合种,即金长莲Staurogyne sichuanica Lo,楔叶叉柱花S.longicuncata Lo,云南叉柱花S.yunnanensis Lo;天目山蓝Peristrophe tianmuensis Lo和省州赛爵床Colo-phanoides kouytcheensis(Levi.)Lo.  相似文献   

5.
描述了旌节花属(旌节花科)西域旌节花Stachyurus himalaicus Hook.f.&Thom s.ex Benth.一新亚种:紫红旌节花S.himalaicus ssp.purpureus Y.P.Zhu&Z.Y.Zhang。该新 亚种与原亚种S.himalaicus subsp.himalaicus的区别在于原亚种的花为黄色或黄绿色,而新 亚种的花为粉紫色至深紫色。此外,原亚种多生长于1300-3000m的落叶或常绿阔叶林中或林 缘,分布区由东喜马拉雅至我国西南广大地区,而新亚种仅见于东喜马拉雅地区2200-3300m 的密林中。  相似文献   

6.
报道了国产爵床科Acanthaceae山牵牛属Thunbergia(山牵牛亚科Thunbergioideae)6种、叉柱花属Staurogyne(瘤子草亚科Nelsonioideae)和老鼠簕属Acanthus(老鼠簕亚科Acanthoideae)各1种植物在扫描电镜下的花粉形态。山牵牛属植物的花粉粒为圆球形,均具螺旋状萌发孔,外壁纹饰以光滑或颗粒状为主,偶具棒状突起。具螺旋状萌发孔被认为是该科独特而较原始的花粉特征。叉柱花属的花粉粒为圆球形,具3孔沟,外壁平滑。老鼠簕属的花粉粒为长球形,具3沟,外壁具细网状纹饰或具小穿孔。花粉形态特征支持传统上将上述3属置于3个不同亚科的处理。  相似文献   

7.
详细描述了广西荛花属一个新变种——黄药白花荛花Wikstroemia trichotoma (Thunb.) Makino var. flavianthera S. Y. Liu。本变种与原变种不同在于侧脉较多,达11对,萼筒非肉质,花药黄色,子房棒状,无毛。  相似文献   

8.
描述了旌节花属(旌节花科)西域旌节花Stachyurus himalaicus Hook.f.&Thoms.ex Benth.—新亚种:紫红旌节花S.himalaicus ssp.purpureus Y.P.Zhu&Z.Y.Zhang。该新亚种与原亚种S.himalaicu subsp.himalaicus的区别在于原亚种的花为黄色或黄绿色,而新亚种的花为粉紫色至深紫色。此外,原亚种多生长于1300—3000m的落叶或常绿阔叶林中或林缘,分布区由东喜马拉雅至我国西南广大地区,而新亚种仅见于东喜马拉雅地区2200—3300m的密林中。  相似文献   

9.
本文报道了寄生在旌节花科植物上的二个小煤炱科新种。它们是(1)旌节花附丝壳(Appendiculella stachyuri Y.X.Hu et B.Song sp.nov.);(2)旌节花小光壳炱(Asteridie-lla stachyuri Y.S.Ouyang et B.Song sp.nov.)。旌节花科分布于东亚,是小煤炱菌寄主的世界新记录。新种有拉丁文和汉文描述。模式标本存放在广东省微生物研究所(GDIM)。  相似文献   

10.
首次报道了囊萼花属(Cyrtandromoea Zoll.)的1个中国新记录种——茎花囊萼花(Cyrtandromoea grandis Ridl.),该种原记载产于泰国、马来半岛和苏门答腊岛,2019年在中国云南省勐海县布朗山地区发现有分布。茎花囊萼花与囊萼花(Cyrtandromoea grandiflora C.B.Clarke)最为相似,但前者聚伞花序生于老茎上,每一花序3~18朵花,二者容易区别。  相似文献   

11.
报道中国爵床-(Acanthaceae)爵床属—新记录种——毛萼爵床(Justicia poilanei Benoist).该种分布于云南南部石灰岩地区,在标本馆长期被鉴定为野靛棵(Justicia patentiflora Hemsl.),但与后者的区别在于它的花冠长约2 cm,花萼裂片三角状卵形和花药基部不具芒状附...  相似文献   

12.
A number of S. E. Asian taxa of Acanthaceae are here recognized as belonging to the prevailingly African genus Isoglossa . The reasons for doing so are briefly outlined. The synonymy, as regards S. E. Asian Isoglossa, is worked out, generic as well as specific. The following new combinations are formally made: Isoglossa clemensorum (R. Benoist) comb. nov., I. collina (T. Anderson) comb. nov., I. geoffrayi (R. Benoist) comb. nov., I. glabra (Hand.-Mazz.) comb. nov., I. inermis (R. Benoist) comb. nov., and I. subcordafa (C. B. Clarke) comb. nov. The distribution is outlined and mapped. I. dichotoma is shown to occur in Africa, where I. lactea , and I. strigosula are sunk into its synonymy.  相似文献   

13.
Taxonomic and nomenclatural comments are given on two widespread Andrographis species, A. paniculata (Burmf.) Nees and A. laxiflora (Bl.) Lindau. A revised synonymy for A. laxiflora is worked up, adding 6 new synonyms from Thailand. Cryptophragmium tonkinense R. Benoist and Parajusticia petelotii R. Benoist are sunk into Gymnostachyum listeri Prain and Eranthemum lateriflorum C. B. Clarke is shown to be Gymnostachyum lateriflorum comb. nov., The pollen grains of G. listeri and G. lateriflorum are briefly described and seem to be typical Gymnostachyum pollen.  相似文献   

14.
The taxonomic equationsMelanoxylon speciosum Benoist=Recordoxylon amazonicum (Ducke) Ducke andElephantomene eburnea Barneby & Krukoff (1974)=Cionomene javariensis Krukoff (1979) are proposed. The new combinationRecordoxylon speciosum (Benoist) Gazel is validated, and the widely discontinuous distribution of the monotypic genusElephantomene is mapped.  相似文献   

15.
报道中国爵床科一新记录种——翅柄裸柱草[Gymnostachyum sigantum (Benoist) J. B. Imlay],并提供了该种的描述。为名称Gymnostachyum sigantum指定了后选模式。  相似文献   

16.
The nucleotide sequence of the human fibroblast (beta 1) interferon chromosomal gene and its flanking regions was determined. These results confirm the absence of intervening sequences in the gene. The presence of some sequences in the upstream flanking region homologous to similar features for other eukaryotic genes was revealed: these include not only the TATAAAT sequence and the consensus sequence (reported by Benoist et al., 1980) but also two additional motifs, one of which is so far present only in inducible genes. Furthermore, a striking similarity between the upstream flanking regions of the human beta 1 and alpha 1 interferon genes is observed.  相似文献   

17.
Results and new hypotheses in animal models often stimulate development of new paradigms in how we view rheumatoid arthritis (RA). The complexity of RA does, however, eventually lead to the rejection of these hypotheses. Here, it is argued that the large number of so-far described animal models, when taken together, also reveals a complex disease. Fortunately, detailed study of each of the animal models will reveal this complexity, and may also be helpful in elucidating the complexity of the human disease. Benoist and Mathis [1] recently contributed a new animal model in which an autoimmune response to a ubiquitous antigen leads to an antibody-mediated inflammatory attack in the joints. It is argued that this new model, as with other animal models, is unlikely to explain RA, but it will add to the tools available to reveal the complexity of RA.  相似文献   

18.
19.
We examined the rate of parasitism and sex ratio of the cuckoo wasp Chrysura hirsuta (Gerstaecker) (Hymenoptera: Chrysididae) that emerged from nests of the mason bee Osmia orientalis Benoist (Hymenoptera: Megachilidae) in Nara, Japan. Nests of O. orientalis were found in empty shells of two snail species, Satsuma japonica (Pfeiffer) and Euhadra amaliae (Kobelt). The percentage of parasitism by cuckoo wasps per all collected cocoons tended to be high (20–50%) even though interannual variation and the average number of cocoons per nest did not differ across snail shell species within each year. Our results from three years of observation, combined with previous reports, showed that the adult sex ratio of C. hirsuta was strongly female‐biased, which suggests that the species reproduces by thelytokous parthenogenesis.  相似文献   

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