共查询到14条相似文献,搜索用时 46 毫秒
1.
2.
3.
4.
潘开玉 《中国科学院研究生院学报》1987,25(4):264-293
按本文处理,马铃苣苔属Oreocharis包括27种、5变种,其中有5个新种、4个新变 种。文中分析研究了该属的外部形态和地理分布; 在扫描电镜(SEM)下,对22个种的花粉 外壁和16个种的种皮进行了观察。结果认为花冠有三个类型,花药有两个类型,花粉和种皮 的外壁纹饰也可各分为三个类型。花冠的各种类型是稳定的,它们与花粉粒和种皮的特征明 显相关。其相关性是该属次级划分的主要依据。该属分为四个组。以O.bodinieri建立的属,Dasydesmus Craib被并入Oreocharis。 相似文献
5.
描述了在广西发现的苦苣苔科一新属和一新种,即文采苣苔属Wentsaiboea D. Fang & D. H. Qin及文采苣苔W. renifolia D. Fang & D. H. Qin, 并提供墨线图。文采苣苔属的柱头外形略似长檐苣苔属Dolicholoma D. Fang & W. T. Wang, 不同在于前者叶肾形,基部心形,具掌状脉,花冠斜钟状,裂片圆形,雄蕊和退化雄蕊着生于冠筒近基部。新属在体态上还接近小花苣苔属Chiritopsis W. T. Wang, 但前者叶具掌状脉,冠筒钟状,远轴侧膨胀,柱头马蹄形;在后者叶具羽状脉,冠筒筒状,不膨胀,柱头下唇倒梯形至线形。 相似文献
6.
韦毅刚 《中国科学院研究生院学报》2004,42(6):528-532
报道了在中国广西发现的苦苣苔科一新属即方鼎苣苔属Paralagarosolen Y. G. Wei 和一新种方鼎苣苔P. fangianum Y. G. Wei。方鼎苣苔属与细筒苣苔属Lagarosolen W. T. Wang近缘,它们的共同特征是花筒细筒状,不肿胀,柱头2;不同点是方鼎苣苔属叶基部有时盾状,聚伞花序具1朵花,花冠裂片顶端圆钝,蒴果宽卵状椭圆球形。 相似文献
7.
描述了采自中国广西的苦苣苔科新种桂林蛛毛苣苔Paraboea guilinensis L. Xu & Y. G. Wei。新种体态及叶形接近厚叶蛛毛苣苔P. crassifolia (Hemsl.) Burtt,与后者不同在于叶革质,花序梗、花梗及花萼均无毛,花冠明显二唇形,蒴果不旋扭。 相似文献
8.
潘开玉 《中国科学院研究生院学报》1988,26(6):450-457
Ten new species, three new varieties and a new section of the family Ge-sneriaceae are described from China in the present paper. They are Tremacron urceolatumK. Y. Pan from Muli of SW Sichuan, T. obliquifolium K. Y. Pan from Miyi and Yanyuanof SW Sichuan, T. aurantiacum K. Y. Pan from Mabian and Pinshan of S Sichuan, lsometrumSect. Chorianthera W. T. Wang et K. Y. Pan (with I. eximium Chun as the section type),Isometrum eximium Chun ex K. Y. Pan from Jiulong, Muli and Jinyang of SW Sichuan;Ancylostemon mairei (Levl.) Craib var. emeiensis K. Y. Pan from Mt. Emei of Sichuan, A.aureus (Franch.) Burtt var. angustifolius K. Y. Pan from Zhenkang of SW Yunnan, A. ga-mosepalus K. Y. Pan from Hanyuan, Yanyuan and Yuexi of SW Sichuan, A. rhombifolius K.Y. Pan from Meigu of SW Sichuan, A. ronganensis K. Y. Pan from Rong an of Guangxi;Corallodiscus flabellatus) (Craib) Burtt var. puberulus K.Y. Pan from Zhongdian and Deqinof NW Yunnan, Nanchuan of S Sichuan and Zayü of Xizang (Tibet), Beccarinda minimaK. Y. Pan from Jinxiu and Xiangzhou of Guangxi, Boeica stolonifera K. Y. Pan from Fang-cheng, Shiwandashan, Pingnan and Dongxing of S Guangxi, B. multinervia K. Y. Pan fromYingjiang of W Yunnan, and Paraboea barbatipes K. Y. Pan from Napo of W Guangxi andXichou of SE Yunnan. 相似文献
9.
李振宇 《中国科学院研究生院学报》2004,42(3):261-262
记载了广西苦苣苔科一新变种——翅茎半蒴苣苔Hemiboea subcapitata Clarke var. pterocaulis Z. Y. Li。该变种与原变种不同在于茎具翅,花期较早。 相似文献
10.
报道了在广西发现的苦苣苔科异裂苣苔属一新变种,即粉绿异裂苣苔Pseudochirita guangxiensis (S. Z. Huang) W. T. Wang var. glauca Y. G. Wei & Yan Liu。它与原变种的区别在于叶近全缘或有不明显的钝锯齿,茎和叶背、叶面密被近贴伏的绒毛,花冠外疏被腺毛。 相似文献
11.
13.
eterachopsis was proposed by the senior author as an independent genus ofthe family Aspleniaceae in 1940 with 2 species. Since then much study on its morpho-logy, anatomy, gametophyte and palynology has been carried out by Nayar, Bir, Chan-dra & Nayar and Chang et al., and they are of the opinion that the genus like Ceterach, is a comparatively primitive element in the family Aspleniaceae. The queer zigzag pa-tern of cutting of lanceolate fronds appears extraordinary in the family Aspleniaceae, and also suggests its antiquity in evolution. So far only 3 species (C. dalhousiae, C.paucivenosa and C. magnifica) are recognized, the former from W. Himalayas, alsoknown from Africa, while the latter two from W. S. China (Yunnan). However, inthe past forty years the Chinese botanists have discovered 2 more species as new in N.W. Yunnan, thus bringing the total known species of the genus up to 5. The presentpaper is a brief summary on the genus Ceterachopsis, which will be published in detailin the Flora Sinica vol. 4. Pteridologists are also divided in their views regarding the generic status of Cete-rachopsis with 5 well-defined species in Yunnan and the East Himalayas. We preferto mintain it as a genus separate from Asplenium on account of its distinct morpholo-gical features. It is to be hoped that more species may come to light in the mountainsin N. W. Yunnan through further exploration now under way. 相似文献
14.