Four New Species and One Variety of Elatostema (Urticaceae) from China

One variety, Elatostema bijiangense var. weixiense, belonging to sect. Weddellia ser. Crenata, one species, E.cucullatonaviculare, belonging to sect. Elatostema ser. Cuspidata, two species, E.luoi and E.heterogrammicum, belonging to sect. Elatostema ser. nanchuanensia, and one species, E.fugongense, belonging to sect. Elatostema ser. Albopilosa, are described as new from China.     

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。     

广西楼梯草属研究随记

描述了在中国广西发现的楼梯草属4新种和1新变种:软毛草楼梯(Elatostema malacotrichum W.T.Wang & Y.G.Wei)可能与骤尖楼梯草(E.cupidatum Wight)近缘,但茎有短柔毛,叶顶端急尖或短渐尖,下面被短柔毛,侧脉在狭侧4条,托叶披针形或狭卵形,淡绿色,无脉,近无毛,雌花序托有短柔毛,苞片无角状突起而明显不同。隆脉楼梯草(E.phanerophlebium W.T.Wang & Y.G.Wei)在亲缘关系上与显脉楼梯草接近,但茎被短柔毛,叶斜长椭圆形,宽1.8-5 cm,顶端渐长尖,基部狭侧钝,宽侧耳形,具半离基三出脉,托叶无钟乳体,雄花序成对腋生,雄花四基数,而与后者区别。凤山楼梯草(E.fengshanense W.T.Wang & Y.G.Wei)与环江楼梯草(E.huanjiangense W.T.Wang & Y.G.Wei)在亲缘关系上甚为接近,但叶边缘有较多小齿,上面有糙伏毛,雌苞片扁宽卵形或宽卵形,顶端有角状突起,小苞片宽条形或匙形,雌花均生于花序托上而与后者区别。棱茎楼梯草(E.angulaticaule W.T.Wang & Y.G.Wei)在亲缘关系方面可能与薄叶楼梯草接近,但茎无毛,有密集的钟乳体。叶的钟乳体较小,长0.1-0.3 mm,雌花序成对腋生,花序托无毛,苞片稍明显,顶端有长0.2 mm的短尖头,小苞片匙形,而与后者区别。变种的茎较细,基部粗2.8 mm,暗褐色,近顶部被反曲短柔毛而与模式变种相区别。补充描述了上林楼梯草(E.shanglinense W.T.Wang)雌花序等的特征。     

云南东南部赤车属和楼梯草属研究随记

描述了云南东南部荨麻科楼梯草属5个新种和3个新变种;报导了赤车属1个种和楼梯草属3个种在云南的新分布。     

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。     

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。     

荨麻科楼梯草属七种植物果实的补充描述

楼梯草属植物的果实形态特征是属下系的划分和种类鉴定的重要依据之一,对于研究该属演化关系具有重要意义。通过标本查阅及野外调查,为该属七种植物的果实进行了补充描述,对该属的进一步分类修订提供有价值的信息。     

重庆赤车属一新种和楼梯草属二新种

描述了自重庆市江津区四面山发现的荨麻科赤车属一新种和楼梯草属二新种：（1）四面山赤车,与融安赤车近缘,区别在于新种的叶的二级脉较少,2枚雌花被片有短角状突起,以及长圆形瘦果;（2）稀柱毛楼梯草,可能与托叶楼梯草近缘,区别在于新种的叶较小,雌总苞苞片,以及雄、雌小苞片均在背面具龙骨状突起,柱头由只3~4根毛组成;（3）四面山楼梯草,与长尖楼梯草近缘,区别在于新种茎的顶端被短柔毛,雄头状花序的花序梗较短,以及雄总苞苞片呈条状船形,背面具龙骨状突起。     

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。     

都匀楼梯草 贵州荨麻科一新种

描述了在中国贵州发现的楼梯草属一新种:都匀楼梯草Elatostema duyunense W.T.Wang&Y.G.Wei,本种在亲缘关系上与上林楼梯草E.shanglinense W.T.Wang甚为相近,但根状茎细长,明显,茎较高,叶上面近牙齿顶端处被极短糙伏毛,托叶较大,条形或宽条形,有1条褐色脉,雄花序有短梗,花序托近圆形,明显,苞片6,其中2枚较大,卵状三角形,4枚较小,船状条形,小苞片无毛而与后者不同。     

广西楼梯草属三新种和一新变种

描述了在中国广西发现的楼梯草属3新种和1新变种:马山楼梯草Elatostema mashanense W.T.Wang & Y.G.Wei与滇黔楼梯草E.backeri H.Schroter相近缘,但茎被向上展的短糙伏毛,叶顶端通常尾状渐尖,边缘具小牙齿或圆齿,具三出脉而与后者相区别。变种毛茎圆序楼梯草Elatostema gyrocephalum W.T.Wang&Y.G.Weivar.pubicaule W.T.Wang&Y.G.Wei的茎在近顶端处密被短柔毛,雌花序托不分裂,苞片中部黑色而与模式变种不同。黑苞楼梯草Elatostema nigribracteatum W.T.Wang&Y.G.Wei与显苞楼梯草E.bracteosum W.T.Wang在亲缘关系上相近,但茎被微柔毛,叶有短柄,叶片较小,长达7mm,纸质,上面无毛,钟乳体较小,长0.1～0.15mm,雌花序分裂成2个二回头状花序,苞片和小苞片呈黑色,无毛,花序托上有数条小枝,而与后者明显区分。天峨楼梯草Elatostema tianeense W.T.Wang&Y.G.Wei似E.hookeriano Wedd,但叶在边缘下部三分之一以上或中部以上有较多小牙齿,具半离基三出脉,托叶较小,狭三角形或三角状钻形,长1～2.5mm,雌花枝粗壮,雌苞片条状三角形,无角状突起而不同。     

广西楼梯草属五新种

描述了在中国广西发现的楼梯草属五新种:小果楼梯草Elatostema microcarpum W.T.Wang & Y.G.Wei在体态方面与荔波楼梯草E.liboense W.T.Wang极为相似,但茎较低矮,不具软鳞片,叶上面无毛,钟乳体较小而可区别。圆序楼梯草Elatostema gyrocephalumW.T.Wang &Y.G.Wei在体态上与浅齿楼梯草E.crena-tum W.T.Wang相似,但叶两面均有糙伏毛,侧脉较少,4-6对,钟乳体较小,长约0.1 mm而不同。对序楼梯草 Elatostema binatum W.T.Wang &Y.G.Wei在亲缘关系方面与深绿楼梯草E.atroviride W.T.Wang相近,但茎和叶无毛,雄花序托较小,近方形,长度及宽度约6.5 mm,小苞片较小,长约1.5 mm,无毛,可以区别。河池楼梯草Elatostema hechiense W.T.Wang &Y.G.Wei似华南楼梯草E.balansae Gagnep.但叶的渐尖头全缘,钟乳体较小,长0.1-0.15 mm,雌花序苞片顶端无角状突起,可以区别。环江楼梯草Elatostema huanjiangense W.T.Wang & Y.G.Wei可能与樟叶楼梯草Elatostema petelotii Gangnep.有亲缘关系,但后者的叶全缘,钟乳体较大,长0.3-0.7 mm,侧脉在狭侧3条,在宽侧4条,但后者的叶全缘,钟乳体较大,长0.3-0.7 mm,侧脉在狭侧3 条,在宽侧4条,雌花序常有长花序梗,而与本种相区别。     

湖南楼梯草属(荨麻科)二个新异名

将具钙楼梯草Elatostema calciferum W.T.Wang和裂序楼梯草Eschizocephalum、W．T.Wang处理为新异名。     

中国楼梯草属(荨麻科)植物省级分布新记录

报道荨麻科楼梯草属7种1变种植物在我国6个省区分布的新记录,其中广西分布新记录的有算盘楼梯草和多歧楼梯草,贵州分布新记录的有曲毛楼梯草,海南分布新记录的有锐齿楼梯草和深绿楼梯草,湖南分布新记录的有短毛楼梯草,四川分布新记录的有丝梗楼梯草,云南分布新记录的有细角楼梯草。     

A revision of Elatostema section Weddelia series Salvinioida (Urticaceae)

Based on examinations of specimens of Elatostema and Pellionia housed at K, KUN, L, P, PE, and YUNU, Elatostema section Weddelia series Salvinioida is taxonomically revised. Two species are recognized, described, and illustrated, and a key to the species is provided. Elatostema salvinioides var. robustum W.T.Wang is treated as a synonym of E. salvinioides W.T.Wang. Pellionia imbricata Gagnepain is transferred to Elatostema and a lectotype is designated herein. A new name, Elatostema simplicissimum Q. Lin, is provided because Elatostema imbricans was previously occupied. © 2008 The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 158 , 62–66.     

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.     

贵州省楼梯草属(荨麻科)植物2新记录种

该文报道了贵州省荨麻科(Urticaceae)楼梯草属(ElatostemaJ.R.G.Forst.)植物2新记录,即环江楼梯草(E.huanjiangense W.T.WangY.G.Wei)和巨序楼梯草(E.megacephalum W.T.Wang)。     

Two new species and a new series of Elatostema (Urticaceae) from China

The new series Elatostema section Elatostema series Albopilosoides Q.Lin & L.D.Duan (Urticaceae) is described, and two new species of Elatostema, namely Elatostema albopilosoides Q.Lin & L.D.Duan and Elatostema purpureum Q.Lin & L.D.Duan. from south Guizhou province, south‐west China are described and illustrated. Both species were found growing only at the base of a large limestone chamber at an altitude of c. 800 m. Elatostema albopilosoides is morphologically similar to E. albopilosum W.T.Wang, but differs by having female inflorescences with peduncles 10–60 mm long (0–1.5 mm long in E. albopilosum) and receptacles 7–27 mm long, 7–24 mm wide (E. albopilosum: 1–4 mm long and 1–3 mm wide). Elatostema purpureum is also morphologically similar to E. albopilosum, but has stipules 5–6 mm long, 0.8–1.5 mm wide (4–7 mm long, 1.5–2.8 mm wide in E. albopilosum) and leaf blades obliquely elliptical to obliquely oblong‐obovate, 3.5–7.5 mm long and 1.5–2.5 mm wide (obliquely narrowly oblanceolate‐oblong, 12–17 cm long, 3–5 cm wide in E. purpureum:). © 2008 The Linnean Society of London, Botanical Journal of the Linnean Society, 2008, 158 , 674–680.     

藤麻(荨麻科)的一个新异名

根据对Elatostema gagnepainianum H. Schröter模式材料的研究,为它指定了后选模式,并将其处理为藤麻Procris crenata C. B. Robinson的新异名。