楼梯草属四新种和一新变种

描述了荨麻科楼梯草属小叶楼梯草组一新变种,维西楼梯草,骤尖楼梯草组骤尖楼梯草系一新种,兜船楼梯草,南川楼梯草系二新种,罗氏楼梯草和异晶楼梯草,以及疏毛楼梯草系一新种,福贡楼梯草。     

云南东南部楼梯草属二新种

描述了从云南东南部发现的荨麻科楼梯草属二新种,其中黄连山楼梯草隶属于骤尖楼梯草组骤尖楼梯草系,腺点楼梯草隶属于骤尖楼梯草组盘托楼梯草系.     

云南楼梯草属二新系和八新种

描述了自云南东南部发现的荨麻科楼梯草属2新系和8新种。     

One New Series with Its Only New Species of Elatostema (Urticaceae) from Southeast Yunnan,China

One new series of sect. Weddelia in the genus Elatostema, named ser. Neriifolia, and with its only new species E.neriifolia from SE Yunnan are described and illustrated here. In addition, the morphological differences between these new taxa and their allies are disscussed and their conservation status is also assessed.     

滇东南荨麻科楼梯草属一新系和一新种

描述了采自云南省东南部楼梯草属一新种——柳叶楼梯草（Elatostema neriifolia）和据其为模式建立的一新系——柳叶楼梯草系（ser. Neriifolia）,并讨论了这些新类群和相近类群在形态上的区别,并对柳叶楼梯草的保护等级进行了评估。     

滇东南荨麻科楼梯草属一新系和一新种

描述了采自云南省东南部楼梯草属一新种——柳叶楼梯草（Elatostemaneriifolia）和据其为模式建立的一新系——柳叶楼梯草系（ser．Neriifolia）,并讨论了这些新类群和相近类群在形态上的区别,并对柳叶楼梯草的保护等级进行了评估。     

云南东南部楼梯草属二新种

描述了从云南东南部发现的荨麻科楼梯草属二新种,其中黄连山楼梯草隶属于骤尖楼梯草组骤尖楼梯草系,腺点楼梯草隶属于骤尖楼梯草组盘托楼梯草系。     

楼梯草属研究随记

在该文中首次给出革叶楼梯草的雄头状花序描述;还给出樱叶楼梯草雄头状花序的修正描述和兜苞墨脱楼梯草的修正特征集要;写出托叶楼梯草和南川楼梯草二种的分类学修订,其中包括2新变种和2新等级;描述了小叶楼梯草组的1新种和骤尖楼梯草组的3新种;数年前被归并为异名的兜苞墨脱楼梯草和五肋楼梯草得到恢复。     

中国荨麻科植物小志（二）

在本文中2种名和2变种名被作为异名;Boehmeria delavayiGagnep.被证实为雾水葛属植物,降级作为雅致雾水葛的变种;Pellioniatrichosantha Gagnep.的采自云南东北部的合模式乃是属于楼梯草属的植物;4种和2变种的地理分布扩大。     

云南楼梯草属二新系和八新种

描述了自云南东南部发现的荨麻科楼梯草属2新系和8新种。     

Six new species of Elatostema (Urticaceae) from Yunnan

Six new species of the genus Elatostema (Urticaceae), E.dentatocaudatum, E.baoshanense, E.cuipingfengense, E.viridicostatum, E.flexuosicaule and E.globosostigmatum, from Yunnan Province, China are described and illustrated. The diagnostic differences between the six new species and their respective allies are given.     

云南楼梯草属研究随记

描述了云南荨麻科楼梯草属三新种和一新变种;列出了勐仑楼梯草与骤尖楼梯草的区别特征,据此说明勐仑楼梯草是一个比骤尖楼梯草原始的独立种,不赞同将其归并,而认为应予以恢复。     

云南高黎贡山荨麻科楼梯草属六新种

描述了云南高黎贡山荨麻科楼梯草属6新种：三茎楼梯草、少叶楼梯草、指序楼梯草、片马楼梯草、茨开楼梯草和拟宽叶楼梯草。     

Notulae de Elatostemate (Urticaceae) Sinensi

In the present paper two series, 11 species and three varieties of the genus Elatostema are described as new from China and one variety is elevated to specific rank. Four species and one variety are reported from Medog, Xizang Autonomous Region, for the first time.     

楼梯草属研究随记

在该文中首次给出革叶楼梯草的雄头状花序描述; 还给出樱叶楼梯草雄头状花序的修正描述和兜苞墨脱楼梯草的修正特征集要; 写出托叶楼梯草和南川楼梯草二种的分类学修订,其中包括2新变种和2新等级; 描述了小叶楼梯草组的1新种和骤尖楼梯草组的3新种; 数年前被归并为异名的兜苞墨脱楼梯草和五肋楼梯草得到恢复。     

Reexamination of series relationships of South American wild potatoes (Solanaceae: Solanum sect. Petota): evidence from chloroplast DNA restriction site variation

Chloroplast DNA (cpDNA) restriction enzyme site analysis was used to test hypotheses of series and superseries affiliations of 76 taxa, representing 11 of the 13 South American series (material unavailable for two series) of wild potatoes (Solanum sect. Petota) recognized in the latest classification by Hawkes. The cladistic results, combined with those from earlier cpDNA studies of 30 taxa of the Mexican and Central American species (representing eight series; ser. Conicibaccata and ser. Tuberosa have representatives in Mexico and in South America), support four main clades for 17 of the 19 series examined in sect. Petota: (1) the Mexican and Central American diploid species, exclusive of S. bulbocastanum, S. cardiophyllum, and S. verrucosum, (2) S. bulbocastanum and S. cardiophyllum (ser. Bulbocastana, ser. Pinnatisecta), (3) South American diploid species constituting all of ser. Piurana, but also members of ser. Conicibaccata, ser. Megistacroloba, ser. Tuberosa, and ser. Yungasensia, (4) all Mexican and Central American polyploid species (ser. Longipedicellata, ser. Demissa), S. verrucosum (diploid Mexican species in ser. Tuberosa), and South American diploid and polyploid members of ser. Acaulia, ser. Circaeifolia, ser. Commersoniana, ser. Conicibaccata, ser. Cuneoalata, ser. Lignicaulia, ser. Maglia, ser. Megistacroloba, ser. Tuberosa, and ser. Yungasensia. Each of these clades contains morphologically and reproductively very diverse species, and there are no evident morphological features that unite members within a clade to therefore distinguish them. These results strongly suggest a need for a reevaluation of the series and superseries classifications of sect. Petota.     

Elatostema scaposum sp. nov. (Urticaceae) from Guizhou,China

Elatostema scaposum Q. Lin & L. D. Duan (Urticaceae: Elatostema sect. Pellionioides W. T. Wang), a new species from Libo County, Guizhou Province, China, is described and illustrated. This species was found growing at the base of a large limestone chamber at an altitude of ca 800 m a.s.l., and differs from all other species in Elatostema sect. Pellionioides W. T. Wang by scapiform male inflorescences (axillary in other species of Elatostema sect. Pellionioides).     

金喜楼梯草(荨麻科),越南楼梯草属植物一新种

对产自越南的荨麻科楼梯草属植物一新种金喜楼梯草（Elatostema kimhyense Y.G.Wei & V.T.Do）作了描述和绘图。该种生长于海拔350~400和1 100~1 200 m的石灰岩山地林下。该新种与越南楼梯草（E.vietnamense Q.Lin & L.D.Duan）接近,区别在于其拥有肉质茎,羽状脉,叶背面、苞片和小苞片被微硬毛。     

Molecular phylogeny of Chinese Rubia (Rubiaceae: Rubieae) inferred from nuclear and plastid DNA sequences

Rubia L. is the type genus of the coffee family Rubiaceae and the third largest genus in the tribe Rubieae, comprising ca. 80 species restricted to the Old World. China is an important diversity center for Rubia, where approximately half of its species occur. However, its internal phylogenetic relationships are still poorly understood. The objective of the present study is to contribute to the phylogenetic relationships within Rubia, using the nuclear internal transcribed spacer and six plastid markers and focusing on species from China. Twenty-seven species of Rubia were sampled to infer their phylogeny using Maximum parsimony, Maximum likelihood, and Bayesian analyses. The monophyly of Rubia is supported, provided that R. rezniczenkoana Litv. is excluded from Rubia and transferred to Galium as a new combination: G. rezniczenkoanum (Litv.) L. E Yang & Z. L. Nie. Within Rubia, two clades are clearly supported. They correspond to the traditional sect. Rubias.l. (A) and sect. Oligoneura Pojark. (B), and are morphologically mainly separable by their pinnate (A) versus palmate (B) leaf venation. Plesiomorphic features are the pinnate leaf veining in sect. Rubia s.l. and the occurrence of some species with opposite leaves and true stipules in sect. Oligoneura. In sect. Oligoneura one can assume an evolution from species with opposite leaves and true stipules (as in the R. siamensis Craib group) to those with whorls of two leaves and two leaf-like stipules (as in ser. Chinenses and the R. mandersii Collett & Hemsl. group) and finally with whorls of 6 or even more elements (as in ser. Cordifoliae). The correlation between clades recognized by DNA analyses and available differential morphological features is partly only loose, particularly in the group of R. cordifolia with 2×, 4×, and 6× cytotypes. This may be due to rapid evolutionary divergence and/or hybridization and allopolyploidy.