New taxa, new records and redefined concepts in the Elaphoglossum sect. Elaphoglossum subsec. Pachyglossa (Lomariopsidaceae) from Mexico and Central America

Twelve new species are described in the taxonomically difficult Elaphoglossum (sect. Elaphoglossum): Elaphoglossum angustifrons A. Rojas, E. delgadilloanum A. Rojas, E. ellipticifolium A. Rojas, E. incognitum A. Rojas, E. mesoamericanum A. Rojas, E. nicaraguese A. Rojas, E. polypodium A. Rojas, E. tejeroanum A. Rojas, E. reptans A. Rojas, E. terrestre A. Rojas, E. variabile A. Rojas and E. zavale A. Rojas. Also, E. latifolium (Sw.) J. Sm., E. sartorii (Liebm.) Mickel and E. viride (E. Fourn.) C. Chr. are amended, E. andicola (Fée) T. Moore and E. sporadolepis (Kunze ex Kuhn) T. Moore are reported.     

The Old World species of Pouzolzia (Urticaceae, tribus Boehmerieae). A taxonomic revision

The Old World species of the genus Pouzolzia have been revised and 24 species and 13 infraspecific taxa recognised. Worldwide, the genus now totals 36 species and 17 infraspecific taxa. Pouzolzia sect. Memorialis Bennett & Brown (including the genera Gonostegia Turcz. and Hyrtanandra Miq.) is maintained here as a section of Pouzolzia. The characters used to separate Pouzolzia from Boehmeria are found to work worldwide. In the Old World, the genus ranges, west to east, from Senegal to Japan and the Solomon Islands, and, north to south, from China, the Himalayas and Yemen to South Africa, Madagascar, Australia and the Lord Howe, Norfolk and Kermadec Is. Some species are common and occur almost throughout tropical Indomalesia or are widespread in Africa; others are rare and with a narrow range, for example restricted to one or a few oceanic islands. Each of the taxa occurring in the Old World is described and illustrated, habitats and geographical ranges are indicated, conservation status is discussed on the basis of our impression of old and new collecting activity, and distributions are mapped. The following new taxa are described: P. tsaratananensis Friis & Wilmot Dear from Madagascar, P. herpetophyton Friis & Wilmot‐Dear from the Comoro Is., and P. zeylanica subsp. calcicola Friis & Wilmot‐Dear and P. thailandica Friis & Wilmot‐Dear, both from southern Thailand. A new name, P. variifolia Friis & Wilmot‐Dear, is proposed for P. heterophylla (Blume) Wedd., nom. illeg. The following new combinations are published here: P. australis (Endl.) Friis & Wilmot‐Dear, P. sanguinea (Blume) Merr. var. formosana (Li) Friis & Wilmot‐Dear, P. sanguinea (Blume) Merrill var. cinerascens (Blume) Friis & Wilmot‐Dear, P. mixta Solms var. shirensis (Rendle) Friis & Wilmot‐Dear, P. hirta (Blume) Hasskarl var. parvifolia (Wight) Friis & Wilmot‐Dear, P. pentandra (Roxb.) Benn. & R. Br. subsp. wightii (Benn. & R. Br.) Friis & Wilmot‐Dear. and subsp. wightii (Benn. & R. Br.) Friis & Wilmot‐Dear var. gracilis (Miq.) Friis & Wilmot‐Dear. The following taxa are reduced to synonymy for the first time: Pouzolzia argenteonitida W.‐T. Wang, P. bracteosa Friis, P. calophylla W.‐T. Wang & C.‐J. Chen, P. guineensis Benth. var. seyrigii Leandri, P. guineensis Benth. var. madagascariensis Wedd., P. baronii Leandri, and P. auriculata Wight.     

云南的复叶耳蕨属(Arachniodes Bl.)植物

对云南产复叶耳蕨属植物进行了再次的分类订正研究,确认云南有该属植物20个种类,其中,华南复叶耳蕨Arachniodes festina(Hance)Ching和齿头复叶耳蕨A．aristata(Forst．)Tindale为云南分布新记录;将《中国植物志》等资料中的Acrorumohra dissecta、Arachniodes ailaoshanensis、A．australis、A．austro-yunnanensis、A．caudata、A．chinensis var．cornopteris、A．chinensis var．jinpingensis、A．chingii、A．dayaoensis、A．futeshanensis、A．gongshanensis、A．guangtongensis、A．lushuiensissis、A．pianmaensis,A.pianmaensis、A．pseudo-aristata、A.ppseudo-assamica、A．sshuangbaiensis、A．sinoaristata、A．sporadosora和A．triangularis等20个名称作为新异名处理。还列出了云南产该属植物的分种检索表、名称的处理及分类讨论、地理分布等。     

Thladiantha tomentosa (Cucurbitaceae) comb. nov. from southwestern China

In this paper, we propose that Thladiantha cordifolia (Blume) Cogn. var. tomentosa A. M. Lu & Z. Y. Zhang should be recognized at species rank as Thladiantha tomentosa (A. M. Lu & Z. Y. Zhang) W. Jiang & H. Wang. This species is similar to T. cordifolia and T. angustisepala W. J. de Wilde & Duyfjes, from which it differs mainly by having ovate bracts, linear sepals, and ellipsoidal, rostrate, ribbed verrucose fruits.     

In vitro regeneration of the colorful fern Pteris aspericaulis var. tricolor via green globular bodies system

In Vitro Cellular & Developmental Biology - Plant - Pteris aspericaulis var. tricolor T. Moore ex Lowe is a fern species with colorful fronds, potentially used as an ornamental plant. In the...     

广西假糙苏属植物增补

报道假糙苏属(Paraphlomis)植物在中国广西2个新分类群和2个新记录种.2个新分类群是翅柄假糙苏(P.javanica(Blume)Prain var.pteropoda D.Fang & K. J.Yan)和白脉狭叶假糙苏(P.javanica(Blume)Prain var.angustifolia (C.Y. Wu)C.Y.Wu&H. W.Li f.albinervia D.Fang & K J.Yan).2个新记录种是刚毛假糙苏(P.hispida C.Y.Wu)和近革叶假糙苏(P.subcoriacea C.Y Wu ex H. W.Li).     

西双版纳植物区系资料（2）

报道了新种子摩,新变种勐海醉藤;云南新记录种石核木,多香木,兰屿山矾及归并新异名微毛越南山矾。     

New names,new combinations and taxonomic notes of Gentiana (Gentianaceae) from South and Southeast Asia

The new names Gentiana membranulifera T. N. Ho and G. nudicaulisKurz var. assamensis T. N. Ho are proposed. The new combinations Gentiana lateriflora Hemsl. var. uncifolia (H. J. Lam) T. N. Ho, G. sumatrana Ridl.var. humifusa (S. Moore) T. N. Ho, G. quadrifaria Bl. var. wightii (Kusnez.)T. N. Ho, G. loerzingii Ridl. var. timida (Kerr) T. N. Ho, and G. membranulifera T. N. Ho var. recurvata (Kusnez.) T. N. Ho are made.     

Ecology of testate amoebae (Protozoa: Rhizopoda) on peatlands in western Russia with special attention to niche separation in closely related taxa.

Testate amoebae (Protozoa: Rhizopoda) are frequently used as indicators of past environmental changes, and the interpretation of fossil assemblages depends upon our knowledge of ecological affinities of taxa in modern environments. A variety of taxonomic approaches have been used in fossil studies, mostly involving grouping of closely related taxa. This paper presents data from peatlands in western Russia relating surface wetness parameters to species occurrence. Relationships between species abundance, water table depth and soil moisture are modelled using weighted averaging, and species niches are calculated as optima and tolerance for these parameters. Niche separation of closely related taxa is examined in detail and it is shown that there is often a gradient of hydrological preference within each group of taxa. Wet to dry gradients include those found in the Trigonopyxis arcula group (T. arcula var. major > T. arcula > T. minuta), the Assulina-Valkanovia group (A. seminulum > A. muscorum > V. elegans), and the Trinema lineare group (T. lineare var. truncatum/ T. lineare > T. lineare var. terricola), all of which are associated with a large to small size gradient. In addition, spined forms within the Euglypha and Placocista genera are shown to consistently occur in wetter habitats than glabrous forms or those with shorter spines. It is concluded that palaeoecological studies should attempt the lowest taxonomic divisions possible within these groups, to maximise the ecological indicator value of the assemblages recorded.     

山西蕨类植物新资料

报道了山西省新记录的蕨类植物6种1变种,隶属6科、7属,它们是井栏边草、东方狗脊、贵阳铁角蕨、雅致针毛蕨、沼泽蕨、毛轴假蹄盖蕨和高大耳蕨.     

秦岭植物分布3新记录属

报道了秦岭植物分布3新记录属:鹿蹄草科(Pyrolaceae)的沙晶兰属(Monotropastrum Andres)、列当科(Orobanchaceae)的藨寄生属(Gleadovia Gamble et Prain)和爵床科(Acanthaceae)的十万错属(Asystasia Blume)。相应的新记录种或变种为无毛沙晶兰[M.humile(D.Don)H.Hara var.glaberrimum H.Hara]、藨寄生(G.ruborum Gamble et Prain)和白接骨[A.neesiana(Wallich)Nees]。     

云南的复叶耳蕨属(ArachniodesBl.)植物

对云南产复叶耳蕨属植物进行了再次的分类订正研究,确认云南有该属植物20个种类,其中,华南复叶耳蕨Arachniodesfestina(Hance)Ching和齿头复叶耳蕨A.aristata(Forst.)Tindale为云南分布新记录;将《中国植物志》等资料中的Acrorumohradissecta、Arachniodesailaoshanensis、A.australis、A.austro-yunnanensis、A.caudata、A.chinensisvar.cornopteris、A.chinensisvar.jinpingensis、A.chingii、A.dayaoensis、A.futeshanen-sis、A.gongshanensis、A.guangtongensis、A.lushuiensis、A.pianmaensis、A.pseudo-aristata、A.pseudo-assa-mica、A.shuangbaiensis、A.sinoaristata、A.sporadosora和A.triangularis等20个名称作为新异名处理。还列出了云南产该属植物的分种检索表、名称的处理及分类讨论、地理分布等。     

南亚和东南亚龙胆属(龙胆科)的新名称、新组合及分类注释

本文提出了龙胆属两个种的新名称(Gentiana membranulifera T．N．Ho,G．nudicaulisKurz var. assa- mensis T．N．Ho)和5个变种的新组合[(Gentiana lateriflora Hemsl．var. uncifolia(H．J．Lam)T．N．Ho, G．sumatrana Ridl．var．humifusa(S．Moore)T．N．Ho,G. quadrifaria Bl．var．wightii(Kusnez．)T．N．Ho, G．loerzingii Ridl. var．timida(Kerr)T．N．Ho,G．membranulifera T．N．Ho var．recurvata (Kusnez．)T．N．Ho)〕。     

Review of the North American Tarphiota Casey, with a description of a new seashore-inhabiting Atheta species exhibiting convergent characteristics (Coleoptera: Staphylinidae: Aleocharinae)

A review of the North American species of the genus Tarphiota Casey is presented. Three species are recognized: T. densa (Moore), T. fucicola (Mäklin), and T. geniculata (Mäklin). They occur on the sandy beaches of the Pacific coast. A new coastal species of Atheta, found on the seashore and exhibiting certain convergent characteristics to Tarphiota, is described from the Atlantic coast: A. novaescotiae Klimaszewski and Majka, sp. nov. All Canadian species are provided with diagnoses, genitalic illustrations and digital photos of their habitus in dorsal and lateral view. A key is presented to distinguish the species. New data on the natural history of A. novaescotiae are presented and briefly discussed.     

云南双扇蕨科植物的分类订正研究

双扇蕨科是一个自然的类群,为单型科,有8种。中国产3种：中华双扇蕨Dipteris chinensisChrist、双扇蕨D.conjugata（Kaulf.）Reinw.和喜马拉雅双扇蕨D.wallichii（R.Br.）T.Moore。云南产2种：中华双扇蕨和喜马拉雅双扇蕨。其中,喜马拉雅双扇蕨为云南分布新纪录。文中列出了国产种类的分类检索表,并均附有彩色图片。     

金粉蕨属的分子系统学研究——基于5种叶绿体DNA序列片段

金粉蕨属（Onychium Kaulfuss）隶属广义凤尾蕨科中的凤尾蕨亚科。迄今为止,该属属下分组及种间界定等仍有诸多问题亟待解决。本研究选取5个叶绿体DNA 序列片段 （rbcL/atpA/matK/trnL-trnF/trnG-trnR）,采用最大似然法（ML）和贝叶斯法（BI）构建金粉蕨属的系统发育树。结果表明：（1）金粉蕨属的9个成员被分置于两大支上。其中野雉尾金粉蕨（Onychium japonicum(Thunberg) Kunze）、西藏金粉蕨（O.tibeticum Ching & S.K.Wu）、木坪金粉蕨（O.moupinense Ching）、湖北金粉蕨（O.moupinense var. ipii(Ching) K.H.Shing）、栗柄金粉蕨（O.japonicum var. lucidum(D.Don) Christ）、黑足金粉蕨（O.cryptogrammoides Christ）、繁羽金粉蕨（O.plumosum Ching）聚为一支;而金粉蕨（O.siliculosum(Desvaux) C.Christensen）和蚀盖金粉蕨（O.tenuifrons Ching）则聚为另一支,可为该属的属下分组提供分子系统学证据;（2）野雉尾金粉蕨与栗柄金粉蕨在系统树中并没有聚在一起,而是被其它类群分割开来,不支持将后者作为野雉尾金粉蕨的变种,建议将栗柄金粉蕨提升为种的等级;（3）系统树上木坪金粉蕨与湖北金粉蕨的样本聚在一个细支上,支持《中国植物志》将湖北金粉蕨作为木坪金粉蕨变种的分类处理;（4）西藏金粉蕨与野雉尾金粉蕨聚在一起,并得到较高的支持,说明两者的关系近缘。     

Notes on the fern family Tectariaceae from Hainan Island,China

Ataxipteris dianguiensis W. M. Chu & H. G. Zhou and Tectaria polymorpha (Wall. ex Hook.) Copel. are reported as new records to Hainan Island, China; T. polymorpha var. subcuneata Ching & Chu H. Wang is reduced to synonymy of T. polymorpha (Wall. ex Hook.) Copel. The morphological variation of T. subtriphylla (Hook. & Arn.) Copel. and the differences between T. simonsii (Baker) Ching and T. media Ching are discussed. A lecototype is designated for A. dianguiensis. Up to date, 20 species of 8 genera in Tectariaceae are recorded to occur in Hainan Island.