中国苦苣苔科植物新资料——小花线柱苣苔

该文报道了产自中国西藏自治区墨脱县境内的线柱苣苔属(Rhynchotechum Blume)中国分布新记录——小花线柱苣苔(R. parviflorum Blume)。该新记录种常生长在林中溪流附近的崖壁以及次生林下阴湿生境中,主要辨别特征为叶基本对生,花萼裂片被绢毛,花梗被黄褐色绒毛,花冠筒较小,子房具短柔毛,果无毛至微柔毛。印度学者于2020年记载为印度新分布,而原始文献中记录的凭证标本采集点位于中国西藏自治区墨脱县境内,故对原文记述的产地信息提出质疑。同时,在前人的研究中部分馆藏的线柱苣苔属植物标本被认定为该新记录种,在此一并提出该新记录种在中国的分布地理信息和详细描述。     

Photosynthesis of herbaceous plants from nutrient-poor tropical forests

Photosynthetic characteristics, specific leaf mass, chlorophyll and total leaf nitrogen concentrations of four herbaceous plants (Dicranopteris linearis, Hanguana malayana, Pentaphragma ellipticum, Tacca integrifolia) from nutrient-poor tropical forests showed that all these plants were well-adapted to their natural growth environments. No photoinhibition was observed even in the understorey plants. This revised version was published online in June 2006 with corrections to the Cover Date.     

The Occurence of Xenoxylon ellipticum in the Late Triassic from North Guangdong,China

Xenoxylon ellipticum has been found in Hongweikeng Formation (probably Middle Keuper-Rhoetic), Gengkou Group of the Late Triassic from the North of Guangdong Province and is described in this paper. The species was first found in the Early Jurassic from West Germany in 1960. It is the fifth species of Xenoxylon Gothan ever found in China.     

椭圆线柱苣苔化学成分研究

采用各种色谱法分离,运用多种波谱技术鉴定结构。从椭圆线柱苣苔Rhynchotechum ellipticum甲醇提取物中分离得到6个化合物:β-谷甾醇(1),熊果酸(2),豆甾醇(3),齐墩果烷-3-O-β-D-葡萄糖苷(4),β-胡萝卜苷(5),正十八烷酸(6)。化合物1～6为首次从该属植物中分离得到。     

Morphology and molecular phylogeny of three new oligotrich ciliates (Protozoa,Ciliophora) from the South China Sea

The present paper documents the morphology and systematic positions of three new oligotrich ciliates, P arallelostrombidium obesum sp. nov. , P arallelostrombidium ellipticum sp. nov. , and S trombidium tropicum sp. nov. , which were sampled from habitats with different salinities in southern China. P arallelostrombidium obesum sp. nov. is characterized by a fat body and the posterior portions of the girdle and ventral kineties extending transversely on the dorsal side. P arallelostrombidium ellipticum sp. nov. is recognizable by the anterior ends of the girdle and ventral kineties being close to each other and the posterior ends of the girdle and ventral kineties intersecting on the dorsal side. S trombidium tropicum sp. nov. is distinguished by a ventrally opened girdle kinety that is slightly spiralled with the right end shifted posteriad. Small subunit rRNA gene trees show that P . obesum sp. nov. and P . ellipticum sp. nov. fall into a mixed group composed of Parallelostrombidium and some Novistrombidium species, and that S . tropicum sp. nov. branches at the base of the clade containing non‐Strombidium species. The relationships of Parallelostrombidium species and that of Strombidium species are both not resolved considering their low support values in our phylogenetic analysis. © 2015 The Linnean Society of London     

A New Combination of the genus Zingiber—Z. ellipticum (S. Q. Tong et Y. M. Xia) Q. G. Wu et T. L. Wu and the Systematic Evidence

The distinct characters of the flower of Plagiostachys elliptica, S. Q. Tong et Y. M. Xia are: (1) each flower possesses two large lateral staminodes, which are adnate to the lip (labellum) to form a deeply 3 lobed labellum;(2) connective extends into a curved, beak like conspicuous appendage (anther crest) and envelops the upper part of style. In the Zingiberaceae, these characters are only present in the genus Zingiber.Furthermore, in Sect. Pleuranthesis of Zingiber the spike also arises from side of the leafy stem. Pollen grains of the species are with cerebelloid sculpture,that is the character of the Subtype Cerebelloid areolate in Zingiberaceae, and are similar to those sculpture and morphology of Sect. Zingiber of the genus Zingiber and differ from those of Plagiostachys, of which pollen grains are with longer spines and belong to the Group long spinate of Subtype spinate. The endotesta of seeds in this species is composed of one layer of brick shaped parenchymatous cells, which is similar to the parenchymatous endotesta of Zingiber seeds and obviously differs from that of seeds of Plagiostachys, which consists of one layer of sclereids. Therefore,Plagiostachys elliptica S. Q. Tong et Y. M. Xia should be transferred from Plagiostachys to the genus Zingiber, and a new combination——Zingiber ellipticum (S. Q. Tong et Y. M. Xia) Q. G. Wu et T. L. Wu is made in this paper.     

中国南部地区松树上的散斑壳菌Ⅰ.

近年作者对我国南部地区松树上的散斑壳属(Lophodermium Chev.)真菌进行了调查和研究。本文报道8个种,其中椭圆散斑壳(L.ellipticum Y.R.Lin)是新种,喜马拉雅散斑壳(L.himalayense P.F.Cannon & Minter)和库曼散斑壳(L.kumaunicum Minter &M.P.Sharma)为我国新记录种,南方散斑壳(L.australe Dearn.)等5种为国内已记载种。对新种作了拉丁文、汉文描述和图解,对新记录种进行了简要记述。另外,记载了已知种的寄主新记录和地理新分布。     

姜属一新组合——侧穗姜及其系统位置

侧穗姜Zingiber ellipticum曾因其花序自茎侧穿叶鞘而出而被童绍全等(1987)置于偏穗姜属作为新种椭圆偏穗姜发表,但侧穗姜的侧生退化雄蕊与唇瓣连合,使唇瓣具3裂片,其药隔附属体发达,延长弯曲成喙状,包囊花柱,具有典型的姜属花的特征;由于姜属侧穗姜组Sect. Pleuranthesis Benth. 的花序亦为侧生,因此,该植物应置于姜属而不应置于偏穗姜属。侧穗姜的花粉表面具脑皱状纹饰,与姜属姜组的花粉纹饰相同,形态亦相似,而与表面具长刺的偏穗姜属花粉迥异。侧穗姜种子内种皮由砖形薄壁细胞构成,与姜属的薄壁细胞型内种皮相同,而与偏穗姜属的石细胞型内种皮明显区别。本文综合花的形态学、孢粉学和种子解剖学特征,将侧穗姜转移至姜属并建立新组合〖WTBX〗Zingiber ellipticum[WTBZ] (S. Q. Tong et Y. M. Xia) Q. G.Wu et T. L. Wu.     

齿梗孢属二新种

报道分离自土壤中的齿梗孢属 Scolecobasidium 二新种:椭圆齿梗孢 Scolecobasidium ellipticum 和小孢齿梗孢 Scolecobasidium microsporum。椭圆齿梗孢与亚马逊齿梗孢 S. amazonense、粗腐植齿梗孢 S. crassihumicola 和倒卵齿梗孢 S. obovatum 形态近似,区别在于 S. amazonense 的分生孢子倒卵形,常在分生孢子基部形成一横隔膜,同样 S. crassihumicola 的分生孢子也仅具一横隔膜;S. obovatum 的分生孢子(10-25×4-6μm)明显地较新种的大,且表面光滑,因此容易区分。小孢齿梗孢与嗜粪齿梗孢 S. coprophilum、腐植齿梗孢 S. humicola 和小疣齿梗孢 S. verruculosum 分生孢子形态有些相似,但新种的分生孢子明显小于 S. coprophilum(6-12.5×2.8-4.2μm)和 S. humicola(7-13×2.8-4μm, Matsushima,1971)的,分生孢子梗也明显较后两者的短;此外,新种的分生孢子密生刺突,而 S. verruculosum 分生孢子表面遍生小疣,使它们陪此易于区分。二新种的模式标本(干制培养物)保存在山东农业大学植物病理学标本室(HSAUP)。