中国苔类植物新记录属──服部苔属

服部苔属ＨａｔｏｒｉａＳｃｈｕｓｔ．现隶属于苔类植物的叶苔科Ｊｕｎｇｅｒｍａｎｎｉａｃｅａｅ,Ｈｏｒｉｋａｗａ（１９３４）报道ＡｎａｓｔｒｏｐｈｙｌｕｍｙａｋｕｓｈｉｍｅｎｓｅＨｏｒｉｋ．时,将它置于Ｅｐｉｇｏｎａｎｔｈａｃｅａｅ内,该科当时包括了现...     

华南植物区系的评论（二）Ⅱ．值得注意的锦葵科种类Ⅲ．稀有的广东梧桐科植物

本文评述广东或海南的锦葵科和梧桐科植物中特有的和较珍稀的种类;对它们的生态环境和分布情况等的研究,将有助于华南植物区系的探讨;现报道这２科共４个属中５个分类单位,其中《中国植物志》未收载的有中越十裂葵Ｄｅｃａｓｃｈｉｓｔｉａｍｏｕｒｅｔｉｉ（新记录）和丹霞梧桐Ｆｉｒｍｉａｎａｄａｎｘｉａｅｎｓｉｓ（特有种）;十裂葵Ｄｅｃａｓｃｈｉｓｔｉａｍｏｕｒｅｔｉｉｖａｒ．ｎｅｒｖｉｆｏｌｉａ（新组合）：草木槿Ｈｉｂｉｓｃｕｓｌｏｂａｔｕｓ是海南石灰岩山植被中,主要的草本植物;雁婆麻Ｈｅｌｉｃｔｅｒｅｓｈｉｒｓｕｔａ其地理分布东缘在珠江口西岸珠海市。本文引证的标本,若未注明的亦收藏于华南植物所标本馆（ＩＢＳＣ）。     

我国新担子菌类补遗

在研究甘肃、四川、云南的担子菌类时发现如下４新种：云南地红菇（ＭａｃｏｗａｎｉｔｅｓｙｕｎｎａｎｅｎｓｉｓＺａｎｇ）,属红菇科（Ｒｕｓｕｌａｃｅａｅ）,地红菇属（ＭａｃｏｗａｎｉｔｅｓＫａｌｃｈｂｒ．）系我国新记录;松针锈耳（ＣｒｅｐｉｄｏｔｕｓｐｉｎｉｃｏｌａＺａｎｇ）绣耳科（Ｃｒｅｐｉｄｏｔａｃｅａｅ）;蛇盖条孢牛肝菌（ＢｏｌｅｔｅｌｕｓｓｅｒｐｅｎｔｉｐｉｌｅｕｓＺａｎｇｅｔＹｕａｎ）,属松塔牛肝菌［疣孢牛肝菌科］（Ｓｔｒｏｂｉｌｏｍｙｃｏｔａｃｅａｅ）;喜杉绒盖牛肝菌（ＸｅｒｏｃｏｍｕｓｐｉｃｅｉｃｏｌａＺａｎｇｅｔＹｕａｎ）,属牛肝菌科（Ｂｏｌｅｔａｃｅａｅ）;长柄灰包（ＬｙｃｏｐｅｒｄｏｎｌｏｎｇｉｓｔｉｐｕｍＺａｎｇｅｔＹｕａｎ）,属灰包科（Ｌｙｃｏｐｅｒｄａｃｅａｅ）。     

云南木桫椤属（桫椤科）一新种

云南木桫椤属（桫椤科）一新种陆树刚（云南大学生态学与地植物学研究所,昆明６５００９１）ＡＮｅｗＳｐｅｃｉｅｓｏｆＡｌｓｏｐｈｉｌａ（Ｃｙａｔｈｅａｃｅａｅ）ｆｒｏｍＹｕｎｎａｎＬＵＳｈｕ－Ｇａｎｇ（ＩｎｓｔｉｔｕｔｅｏｆＥｃｏｌｏｇｙａｎｄＧｅｏｂ...     

白粉菌属一新种

报道了寄生在人参（ＰａｎａｘｇｉｎｓｅｎｇＭｅｙｅｒ）上的白粉菌属一新种：人参白粉菌（ＥｒｙｓｉｐｈｅｐａｎａｃｉｓＲ．Ｌ．Ｂａｉ．ｅｔＷ．Ｃ．Ｌｉｕｓｐ．ｎｏｖ．）,此为白粉菌有性型在五加科（Ａｒａｌｉ ａｃｅａｅ）植物上寄生的首次记载。模式标本存放在解放军农牧大学真菌标本室     

青海齿缘草属（紫草科）－新种

紫草科Ｂｏｒａｇｉｎａｃｅａｅ青海齿缘草属（Ｅｒｉｔｒｉｃｈｊｕｍ）新种,互助齿缘草Ｅ．ｈｕｚｈｕｅｎｓｅ     

红豆杉科植物RAPD分析及其系统学意义

利用随机扩增多态性ＤＮＡ（ＲＡＰＤ）技术分析了红豆杉科（Ｔａｘａｃｅａｅ）红豆杉属（Ｔａｘｕｓ）、白豆杉属（Ｐｓｅｕｄｏｔａｘｕｓ）、穗花杉属（Ａｍｅｎｔｏｔａｘｕｓ）和榧树属（Ｔｏｒｒｅｙａ）的６种植物：红豆杉（Ｔａｘｕｓ ｃｈｉｎｅｎｓｉｓ （Ｐｉｌｇｅｒ）Ｒｅｈｄ）、南方红豆杉（Ｔａｘｕｓ ｃｈｉｎｅｎｓｉｓ ｖａｒ．ｍａｉｒｅｉ（Ｌｅｍｅｅ ｅｔＬｅｖｌ．）Ｃｈｅｎｇ ｅｔＭａｉｒｅＹｅｗ     

中国白粉菌科的四个新记录种

本文报道了中国白粉菌科Ｅｒｙｓｉｐｈａｃｅａｅ的四个新记录种和变种,即：ＥｒｙｓｉｐｈｅｃａｔａｌｐａｅＳｉｍｏｎ．,Ｅ．ｔｈｅｓｉＪｕｎｅｌ,Ｅ．ｕｌｍａｒｉａｅＤｅｓｍ．和ＭｉｃｒｏｓｐｈａｅｒａｄｉｆｆｕｓａＣｏｏｋｅ＆Ｐｅｃｋｖａｒ．ｔｈｅｒｍｏｐｓｉｄｉｓ（Ｊａｃｚ．）Ｔ．Ｚ．Ｌｉｕｃｏｍｂ．ｎｏｖ．。最后的变种同时是新组合。     

中国白粉菌科的四个新记录种

本文报道了中国白粉菌科Ｅｒｙｓｉｐｈａｃｅａｅ的 新记录种和变种,即：ＥｒｙｓｉｐｈｅｃａｔａｌｐａｅＳｉｍｏｎ。ＥｔｈｅｓｉｉＪｕｎｅｌｌ,ＥｕｌｍａｒｉａｅＤｅｓｍ。和ＭｉｃｒｏｓｐｈａｅｒａｄｉｆｆｕｓａＣｏｏｋｅ＆Ｐｅｃｋｖａｒ。ｔｈｅｒｍｏｐｓｉｄｉｓ（Ｊａｃｚ）ＴＺ．Ｌｉｕｃｏｍｂｎｏｖ。最后的变种同时是新组合。     

中国蒺藜植物黄酮类化学成分分析及其化学分类学意义

采用薄层层析和高效毛细管电泳（ＨＰＣＥ）等方法,对中国蒺藜科５属的代表性植物中的黄酮类成分进行了分析研究,并结合其它分类学性状进行了初步讨论,我们同意：（１）支持Ｅｎｇｌｅｒ（１９３１）骆驼蓬亚科（Ｐｅｇａｎｏｉｄｅａｅ）地位;（２）支持Ｔａｋｈｔａｊａｎ（１９８７）白刺科（Ｎｉｔｒａｒｉａｃｅａｅ）的恢复;（３）支持ＥＩ－Ｈａｄｉｄｉｄ（１９９７）刺蔟藜科（Ｔｒｉｂｕｌａｃｅａｅ）的建立。     

Phylogeny of the core Malvales: evidence from ndhF sequence data

The monophyly of the group comprising the core malvalean families, Bombacaceae, Malvaceae, Sterculiaceae, and Tiliaceae, was recently confirmed by molecular studies, but the internal structure of this clade is poorly understood. In this study, we examined sequences of the chloroplast ndhF gene (aligned length 2226 bp) from 70 exemplars representing 35 of the 39 putative tribes of core Malvales. The monophyly of one traditional family, the Malvaceae, was supported in the trees resulting from these data, but the other three families, as traditionally circumscribed, are nonmonophyletic. In addition, the following relationships were well supported: (1) a clade, /Malvatheca, consisting of traditional Malvaceae and Bombacaceae (except some members of tribe Durioneae), plus Fremontodendron and Chiranthodendron, which are usually treated as Sterculiaceae; (2) a clade, /Malvadendrina, supported by a unique 21-bp (base pair) deletion and consisting of /Malvatheca, plus five additional subclades, including representatives of Sterculiaceae and Tiliaceae, and Durionieae; (3) a clade, /Byttneriina, with genera traditionally assigned to several tribes of Tiliaceae, plus exemplars of tribes Byttnerieae, Hermannieae, and Lasiopetaleae of Sterculiaceae. The most striking departures from traditional classifications are the following: Durio and relatives appear to be more closely related to Helicteres and Reevesia (Sterculiaceae) than to Bombacaceae; several genera traditionally considered as Bombacaceae (Camptostemon, Matisia, Phragmotheca, and Quararibea) or Sterculiaceae (Chiranthodendron and Fremontodendron) appear as sister lineages to the traditional Malvaceae; the traditional tribe Helictereae (Sterculiaceae) is polyphyletic; and Sterculiaceae and Tiliaceae, as traditionally circumscribed, represent polyphyletic groups that cannot sensibly be maintained with their traditional limits for purposes of classification. We discuss morphological characters and conclude that there has been extensive homoplasy in characters previously used to delineate major taxonomic groups in core Malvales. The topologies here also suggest that /Malvatheca do not have as a synapormophy monothecate anthers, as has been previously supposed but, instead, may be united by dithecate, transversely septate (polysporangiate) anthers, as found in basal members of both /Bombacoideae and /Malvoideae. Thus, “monothecate” anthers may have been derived at least twice, independently, within the /Bombacoideae (core Bombacaceae) and /Malvoideae (traditional Malvaceae).     

Circumscription of Malvaceae (Malvales) as determined by a preliminary cladistic analysis of morphological, anatomical, palynological, and chemical characters

We report a phylogenetic analysis of “core” Malvales (Tiliaceae, Sterculiaceae, Bombacaceae, and Malvaceae) based on morphological, anatomical, palynological, and chemical features. The results of the analyses lead to the conclusion that Tiliaceae, Sterculiaceae, and Bombacaceae, as variously delimited, are paraphyletic; only the Malvaceae are likely monophyletic. The genera of “core” Malvales form a well-defined clade. Genera of “Tiliaceae” constitute the basal complex within “core” Malvales. The “Sterculiaceae” (most genera)+ “Bombacaceae” + Malvaceae form a clade on the basis of a monadelphous androecium; “Bombacaceae”+ Malvaceae also form a clade, which is diagnosable on the basis of monoloculate anthers. It is clear that the traditional classification, with its arbitrarily delimited evolutionary grades, is unsatisfactory, especially if one seeks to reflect phylogeny accurately. Thus, Malvaceae is redefined to refer to the most recent common ancestor of plants previously considered to be “Tiliaceae,” “Sterculiaceae,” “Bombacaceae,” and Malvaceae, and all of the descendants of that ancestor. This broadly circumscribed Malvaceae can be diagnosed by several presumed synapomorphies, but we draw special attention to the unusual floral nectaries that are composed of densely packed, multicellular, glandular hairs on the sepals (or less commonly on the petals or androgynophore).     

Support for an expanded family concept of Malvaceae within a recircumscribed order Mai vales: a combined analysis of plastid atpB and rbcL DNA sequences

Sequence analyses of the plastid genes atpB and rbcL support an expanded order Malvales. Within this alliance, core Malvales are clearly supported and comprise most genera that have previously been included in Sterculiaceae, Tiliaceae, Bombacaceae, and Malvaceae. Additional well supported malvalean alliances include the bixalean clade (Bixaceae, Diego-dendraceae, and Cochlospermaceae), the cistalean clade (Cistaceae, Dipterocarpaceae, and Sarcolaenaceae) and Thymelaeaceae (including Gonystyloideae and Aquilarioideae). Our results indicate sister-group relationships between (1) Neuradaceae and the cistalean clade; (2) Sphaerosepalaceae and Thymelaeaceae; (3) these two clades (1 and 2); and (4) all these and an alliance comprising the bixalean clade and core Malvales, but this pattern is weakly supported by the bootstrap. The affinities of Muntingiaceae and Petenaea are especially ambiguous, although almost certainly they are Malvales s.l. The traditional delimitation of families within core Malvales is untenable. Instead, we propose to merge Sterculiaceae, Tiliaceae and Bombacaceae with Malvaceae and subdivide this enlarged family Malvaceae into nine subfamilies based on molecular, morphological, and biogeographical data: (1) Byttnerioideae, including tribes Byttnerieae, Lasiopetaleae and Theobromeae (all of which have cucullate petals) and Hermannieae; (2) Grewioideae, including most genera of former Tiliaceae; (3) Tilioideae, monogeneric in our analysis; (4) Helicteroideae, comprising most of the taxa previously included in Helictereae, plus Mansonia, Triplochiton (indicating that apocarpy evolved at least twice within Malvaceae) and possibly Durioneae; (5) Sterculioideae, defined by apetalous, apocarpous, usually unisexual flowers with androgynophores; (6) Brownlowioideae, circumscribed as in previous classifications; (7) Dombeyoideae, expanded to include Burretiodendron, Eriolaena, Pterospermum, and Schoutmia; (8) Bombacoideae, corresponding to former Bombacaceae (without Durioneae) but including Fremontodendreae     

Pollen Morphology of Craigia with Reference to Its Systematic Position

Due to the unique floral and pollen morphology of the genus Craigia its systematic position, whether in the family Sterculiaceae or in the family Tiliaceae, has often been debated. In order to add more evidence for solving this problem, a comparative study on pollen morphology of the genus and 15 species of 3 tiliaceous genera, viz.: Tilia Linn., Hainania Merr. and Excentrodendron Chang. et Miau. was carried out under the light and scanning electron microscope. The result shows that the polarity, the structure and position of the aperture of Craigia pollen differ from those in Tiliaceae but are similar to those in Sterculiaceae. From palynology, it is more appropriate to place the genus under discussion in Sterculiaceae than in Tiliaceae.     

滇桐属系统位置的分支分析

本文以讨论系统位置有争议的滇桐属的归属问题,尝试在植物分类学中具体应用分支系统学原理和方法的可能性。作者认为近年来分支系统学中出现的一种倾向,即不再强调祖先和直接的谱系关系,而把分支图解仅仅作为一种归类手段,为本文提供了理论基础。通过对梧桐科和椴树科7个属15个性状状态的分支分析,建立了符合简约性原则的分支图解。分支图解表明,滇桐属与通常置于梧桐科的马克韦桐属具有较密切的关系,而它们与椴树科的关系比与梧桐科的关系更接近。结论支持把滇桐属作为椴树科成员的观点。     

New Mexican species of Byttneria (Sterculiaceae), Bakeridesia (Malvaceae), and Triumfetta (Tiliaceae)

Recent collections have brought to light the following new species from the states of Tabasco and Oaxaca, Mexico:Byttneria fluvialis (Sterculiaceae) from Tabasco;Bakeridesia amoena (Malvaceae), andTriumfetta calzadae (Tiliaceae) from Oaxaca.     

The bicolor unit — homology and transformation of an inflorescence structure unique to coreMalvales

A broad comparative analysis reveals that the inflorescences of coreMalvales, familiesSterculiaceae, Tiliaceae, Bombacaceae andMalvaceae, include characteristic repeating units. The basic repeating unit is called bicolor unit (afterTheobroma bicolor, where it was first observed). It is determinate and bears three bracts, one of which is invariably sterile, whereas the others subtend lateral cymes or single flowers. Through the demonstration of intermediate steps in closely related taxa the triad of bracts within a bicolor unit and the trimerous malvalean epicalyx are shown to be homologous. Various possibilities for an origin of the bicolor unit are discussed. Bicolor units are variously arranged to form complete inflorescences. In many taxa they are terminal on modules that comprise two (or fewer) prophylls. These modules may be arranged in elongated anthocladia or condensed sympodia, which in turn may constitute components of higher order inflorescence structures. The presence of the bicolor unit or its derivatives linksSterculiaceae, Tiliaceae, Bombacaceae andMalvaceae. It is absent from all other families included in a broader defined orderMalvales and represents one of the rare morphological synapomorphies of coreMalvales. Furthermore, inflorescence morphology provides characters of systematic significance for various taxa within coreMalvales.     

梧桐科植物的地理分布

梧桐科植物全世界有60属约1546种,主要分布在热带和亚热带地区,只有少数种类可分布至温带地区,由于梧桐科是多型的科,科的范围较大,对有些属是否应隶属于该科,国内外学者的意见很不一致。本文基本上按照J.Hutchinson系统和参考有关文献对一些属的分类位置作了调整,把梧桐科分为12族,根据A.Takhtajan的世界植物区系区划的原则,将梧桐植物在世界上的分布区,划分为6区8亚区23地区,并指出各属在中国各省区的地理分布,现在中国梧桐科植物连引种栽培的在内共有25属99种7变种,其中野生的有18属85种7变种,引种栽培的有8属14种,对梧桐科植物的起源和发展作了一些探讨。