中国拟兰亚科的研究

Apostasioideae, a small subfamily of Orchidaceae, is largely distributed in tropicalAsia with its northern limit extending to the Ryukyu Islands and south China. The first Chinesespecies of this subfamily was reported by E. D. Merrill (1927) based on a specimen collectedfrom Hainan (McClure 9519, AMES), which he regarded as Apostasia wallichii R. Br. Aslater 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. Chenet 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.  Inde 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.  Asrecently 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 glandularhair 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. deVogel'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.  Thuswe have altogether one species of Neuwiedia and three species of Apostasia in China, including a new species and a newly recorded one.     

新宁楼梯草的分类学订正

根据对新宁楼梯草Elatostema xinningense W.T.Wang模式标本的研究,结合在新宁楼梯草模式产地湖南省新宁县紫云山的野外调查,将新宁楼梯草降级并组合为对叶楼梯草E.sinense H.Schr⒐ter的变种。     

中国兰科线柱兰属一新记录种——黄花线柱兰

报道了中国兰科植物一新记录种,黄花线柱兰Zeuxine flava (Wall. ex Lindl.) Benth. ex Hook. f.。本种的唇瓣橘黄色并呈“T”形,前唇裂片成方形,长宽近相等,唇瓣基部囊内各具一枚钩状胼胝体。     

中国禾本科新分类群

Six new taxa of the Gramineae are described from the China. They are MelicaL.Sect. Schizolemma Z.L.Wu, M .flava Z.L.Wu, M. longiligulata Z.L.Wu, M.yajiangensis Z. L.Wu, Glyceria chinensis Keng, Oryzopsis munroi Stapf ex Hook.f. var.parviflora Z.L.Wu.     

暖地杓兰——与碗兰属有密切关系的新种

Cypripedium subtropicum S.  C. Chen et K. Y. Lang is a phytogeography-cally significant new species with its habit, inflorescence and column very similar tothose 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 whywe place it in Cypripedium, the column characters resemble those of Selenipedilum. Forexample, the staminode is rather small and its long stalk is very similar in texture andcolor 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  themost primitive genus, from which or whose allies Cypripedium is derived.  Of phyto-geographical significance is the fact that Selenipedilum occurs in Central America andnorthern South America, while a cypripedium akin to it is discontinuously distributedin subtropical Asia.  This suggests that Selenipedilum or Selenipedilum-like  form beonce continually distributed in North America and eastern Asia when the climate therewas warmer, as it is in the subtropics today.  The floristic relationship between CentralAmerica 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 tobe of Asian, rather than Central American, origin.  Selenipedilum possesses some veryprimitive characters, such as trilocular ovary, vanilla-scented fruit, seed with sclerotictesta, simple column and more or less suffrutescent habit.  The latter is considered byDahlgren & Clifford (1982) to be one of ancestral characters of monocotyledons, whichis now very rare not only in Orchidaceae but also in all monocotyledons.  It is indeednecessary to make further investigations on Selenipedilum and also the new species pub-lished here, as well as a detailed comparison between them.     

中国五加科木怱木属一些分类群的订正

 在全面修订五加科木忽木属的基础上．对中国木忽木属几个有问题的种,即A . chinensis L.,A.de-caisneana Hanece,A．elata(Miq．)Seem．,A．stipulata Franch.,A．dasyphylloides J．Wen,A. thomsonii Seem．ex Clarke,A.vietnamensis Ha,A．foliolosa(Wall．)Seem.,A．armata(Wall ．ex Don)Seem.,A. finlaysoniana(Walli．ex Don)Seem．和A．debilis J．Wen进行了讨论,井对若于名称作了异名处理。     

耳草属（茜草科）植物的两个新种

耳草属（茜草科）植物的两个新种=Two new species of the genus Hedyotis　(Rubiaceae) from China[刊,中]/ 王 瑞 江（中国科学院华南植物研究所 广州 510650）,邢 福 武//植物分类学报.—2002,41（1）.—85～88摘要：描述了国产耳草属(茜草科)植物的两个新种,启无耳草Hedyotis wangii　R. J. Wang和崖州耳草H. yazhouensis　F. W. Xing et R. J. Wang。     

异裂苣苔属（苦苣苔科）一新变种——粉绿异裂苣苔

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。     

广西、甘肃轮藻属新植物

In order to get a thorough understanding of the Characeae, the specime-ns collected from Guangxi and Gansu were identified.  The result shows  that  thetwo provinces, especially Guangxi, are abundant in this family.  In this paper,  ho-wever, reported are only new species, new varieties and new records of Chara in China.They are Chara vernicosa sp. nov. C. globularis var. inflata var. nov. and C. howe-ana var. subgymnophylla var. nov., C. brionica stapf and C. calveraensis comb. nov.     

乌蒙杓兰及其近亲种

 In addition to describing a new species, Cypripedium wumengense, as wellas a new variety, C. bardolphianum var. zhongdianense,  nomenclatural and taxonomicnotes are made on its allies and the division to which they belong.  They are ltrge]yfound in the Hengduan Mountains in southwestern China, characterized by the absenceof bract, havirg lip more or less covered with small wart-like outgrowths, and that asthe capsule matures the scape becomes much elongated.  Six species of this group havehitherto been reported, of which, however, C. ebracteatum and C. nutans are regardedhere as conspecific with C. fargesii and C. bardolphianum respectively. Thus, includingthe new taxa described here, it composes five species and one variety: C. bardolphianumW. W. Sm. et Farrer (var. bardolphianum and var. zhongdianense S. C. Chen), C. mic-ranthum Franch., C. fargesii Franch., C. margaritaceum Franch. and C. wumengenseS. 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.