银合欢,新银合欢资源利用

银合欢属Leuaena Benth. ,约40种,产中美洲及北美南部。无刺乔木或灌木;叶二回偶数羽状复叶,头状花序,花白色,故名银合欢,雄蕊10,分离,荚果薄带状,开裂。银合欢L. leucocephala(Lam.)De Wit. (L. glauce(L.)Benth.)原产中美墨西哥,我国引种     

西藏蓝钟花属一新变型——白花裂叶蓝钟花

描述了桔梗科蓝钟花属裂叶蓝钟花(Cyananthus lobatus Wall.ex Benth.)的一个新变型——白花裂叶蓝钟花(Cyananthus lobatus Wall.ex Benth.f.albiflorus J.Luo et S.L.Wang)。原变型的花冠为紫蓝色至淡蓝色,而新变型花冠为白色。     

Dalbergia prazeri Prain(豆科)之考证

在发表Dalbergia prazeri Prain时Prain曾认为其与托叶黄檀(D.stipulacea Roxb.)近缘,只是该种小叶背面疏被微柔毛,花萼被硬毛与托叶黄檀不同,同时又指出其荚果也与后者不同,但是并没有解释其不同点。之后Prain又将其归并入奥氏黄檀(D.oliveri Gamble ex Prain),亦未给出相应的理由。经研究D.prazeri Prain与南岭黄檀(D.assamica Benth.)为同种,而被归并入后者。Prain发表该种时引证Prazer s.n.为模式,但并没有指定主模式。涉及该种的Prazer s.n.的标本共有6份,该文将藏于印度国立标本馆加尔各答馆(CAL),条形码为CAL0000012326(CAL标本号131311)的标本指定为后选模式(lectotype),其余分别藏于加尔各答标本馆的4份及英国皇家植物园邱园标本馆(K)的1份为等后选模式(isolectotype)。     

湖南的新记录植物(六)

报道了湖南植物分布新记录, 其中新记录属2 个, 即假木豆属(Dendrolobium(Wight etArn.)Benth.)和排钱树属(Phyllodium Desv.);新记录种20 个, 即鹰爪花(Artabotrys hexapetalus(Linn.f.)Bhandari)、岩生碎米荠(Cardamine calcicola W.W.Smith.)、山芥碎米荠(Cardamine griffithii Hook.f.et Thons.)、白花碎米荠(Cardamine leucantha (Tausch)O.E.Schulz)、紫彩绣球(Hydrangea sargentiana Rehd.)、狭叶黄檀(Dalbergia stenophylla Prain)、假木豆(Dendrolobium triangulare(Retz.)Schindl.)、排钱树(Phyllodium pulchellum (L.)Desv.)、华野豌豆(Vicia chinensis Franch.)、绿萼凤仙花(Impatiens chlorosepala Hand.-Mazz.)、岩谷杜鹃(Rhododendron rupivalleculatum Tam.)、革叶铁榄(Sinosideroxylon wightianum (Hook.et Arn.)Aubr.)、宁波木犀(Osmanthus cooperi Hemsl.)、天人草(Comanthosphace japonica (Miq.)S.Moore)、华南野靛棵(Mananthes austrosinensis (H.S.Lo)C.Y.Wu et C.C.Hu)、东亚磨芋(Amorphophallus kiusianus (Makino)Makino)、齿唇兰(Anoectochilus lanceolatus Lindl.)、圆叶石豆兰(Bulbophyllum drymoglossum Maxim.ex Okubo)、毛杓兰(Cypripedium franchetii E.H.Wilson)、绿花斑叶兰(Goodyyera viridiflora (Bl.)Bl.);新记录变种1 个, 即异果崖豆藤(Millettia dielsiana Harms var.heterocarpa (Chun ex T.Chen)Z.Wei)。     

中国大戟科一新记录属——小果木属

报道了中国大戟科一新记录属——小果木属(Micrococca Benth.)。小果木Micrococca mercurialis(L.)Benth.首次在海南发现。     

大叶栎的组织培养和快速繁殖

1 植物名称 大叶栎[Castanopsis fissa(Champ.ex Benth.)Rehd.et Wils.],又名:黧蒴锥、闽粤栲、大叶蒴、裂壳锥、木叶锥栗、裂斗锥.     

豆科一新属——长柄山马蝗属

长柄山马蝗属[Podocarpium (Benth.)Yang et Huang]原包括在广义的山马蝗属(Desmodium Desv.)中,最早是由Bentham(1852)作为山马蝗属下一个组(Sect.Podocarpium Benth.)而建立的。     

裂叶荆芥的组织培养和快速繁殖

1植物名称裂叶荆芥[Schizonepeta tenuifolia (Benth.)Briq.],又称假苏、四棱杆蒿。2材料类别种子无菌萌发苗的叶和茎段。3培养条件种子萌发培养基:(1)MS;不定芽     

粉叶羊蹄甲

正粉叶羊蹄甲[Bauhinia glauca(Benth.)Benth.]为云实科(Caesalpiniaceae)羊蹄甲属植物。木质藤本;无毛,卷须稍扁,旋卷。叶纸质,近圆形,长5～7(～9)cm,2裂至叶长1/2或更深裂,裂片卵形,先端圆钝,基部阔心形至截形,叶面无毛,背面粉白色,疏被柔毛,脉上毛较密,基出脉9～11条;叶柄纤细。总状花序顶生或与叶对生,花密集,总花梗长2.5～6 cm,被疏     

广西唇形科植物新记录

该文首次报道了唇形科5种植物在广西的新记录——簇序属(Craniotome Reichenb.)及簇序草[Craniotome furcata(Link)Kuntze]、西南水苏[Stachys kouyangensis(Vaniot)Dunn]、海南深红鸡脚参[Orthosiphon rubicundus(D.Don)Benth.var.hainanensis Sun ex C.Y.Wu]、黄花香薷[Elsholtzia flava(Benth.)Benth.]、滨海白绒草[Leucas chinensis(Retz.)R.Br.]。引证标本均存放于广西中医药研究院标本馆(GXMI)。     

砂生槐的一新变型——白花砂生槐

描述了豆科苦参属砂生槐的一个新变型:白花砂生槐[Sophora moorcroftiana(Benth.)Baker f.albiflora S.H.Yang]。原变型的花冠为蓝紫色,而新变型的花冠为白色。     

广西豆科植物新记录属——镰瓣豆属

该文报道了中国广西豆科(Fabaceae)植物新分布记录属,即镰瓣豆属[Dysolobium (Benth.) Prain],同时描述了该属的分类学特征,并提供了镰瓣豆[D. grande (Benth.) Prain]的引证标本、地理信息和图片。     

A reconsideration of the genusRabdosiella (Lamiaceae,Nepetoideae, Ocimeae)

The two generaPlectranthus andIsodon are compared and found to be very dissimilar.Isodon ist considered to be misplaced inOcimeae subtribePlectranthinae and apparently is more closely related to subtribeHyptidinae. The disjunct genusRabdosiella is compared to these two genera and regarded to be polyphyletic. The AfricanR. calycina (Benth.)Codd is returned toPlectranthus and calledP. calycinus Benth., while the AsianR. ternifolia (D. Don)Codd is placed inIsodon sect.Pyramidium and calledI. ternifolius (D. Don)Kudo.     

A preliminary pachytene analysis of two species of Arachis L.

Summary The morphology of pachytene chromosomes was studied in A. glabrata Benth. and A. pusilla Benth. belonging respectively to the sections Rhizomatosae and Triseminale. These two species can not be crossed with the cultivated groundnut A. hypogaea L. All 20 chromosomes of A. glabrata could be identified individually and further classified into 5 basic types. The features that enabled the identification of chromosomes were: total length, arm ratios, nucleolus attachment and position and extent of heterochromatin. A simple key has been proposed for classifying different chromosomes to facilitate their easy identification. The genomes of A. glabrata did not resemble those of A. hypogaea except for the presence of an A chromosome, 2 euchromosomes and 2 nucleolus organisers. A. glabrata did not appear to be an amphidiploid but rather an allopolyploid hybrid. The genome of A. pusilla contained chromosomes unlike those of any other species of section Arachis. It was concluded that both these species are quite unrelated to other species of the section Arachis.     

广藿香香叶醇合酶基因克隆及表达分析

香叶醇合酶(geraniol synthase,GES)是香叶醇形成过程中非常重要的酶,是萜类代谢途径的限速酶。根据课题组广藿香转录组数据中的GES 转录本序列设计基因全长扩增引物,采用RT PCR方法克隆了广藿香GES基因的全长cDNA序列。对该基因进行了相关的生物信息学分析,并利用荧光实时定量PCR法检测了PcGES1基因在4个广藿香栽培种中不同时期茎、叶中的表达情况。结果显示：广藿香GES基因包含一个完整的ORF框,长1 734 bp,编码577个氨基酸,命名为PcGES1,GenBank登录号为KF926075 ;PcGES1基因编码的氨基酸序列与罗勒GES基因编码的氨基酸序列最为相近。广藿香GES蛋白定位在叶绿体中,无跨膜区域。PcGES1主要在叶中表达,老叶中表达量最高;从不同栽培种来看,PcGES1在石牌广藿香和高要广藿香中表达模式相似,在海南广藿香与印尼广藿香中表达相似,在海南广藿香老叶中表达最高。该研究结果为进一步阐明广藿香萜类代谢途径奠定了基础。     

Functional response ofCurinus coeruleus (Col.: Coccinellidae) toHeteropsylla cubana (Hom.: Psyllidae) on artificial and natural substrates

Laboratory measurements of the functional response of adultCurinus coeruleus (Mulsant) to nymphs ofHeteropsylla cubana Crawford on filter paper and on leaves of different host plants showed a significant effect of these different substrates on nymph consumption at several different densities. Moreover, this effect may be explained by the influence of the substrate on the search rate of the predator. Host plants tested includedLeucaena leucocephala (Lam) de Witt,L. diversifolia (Schlecht.) Benth. andL. pallida Britton and Rose. Results obtained may be relevant to plant-protection research programs involving the integration of biological control with host-plant resistance.      

中国球兰属新记录植物——长瓣球兰（Hoya acuminata）

报道了夹竹桃科萝藦亚科长瓣球兰［Hoya acuminata (Wight) Benth. ex Hook. f.］在中国的新分布记录。长瓣球兰过去记录在不丹、印度东北部（Sikkim, Khasia）和缅甸,2015年在中国西南部的西藏墨脱县内、海拔1 577 m的山林树上发现长瓣球兰。该物种与景洪球兰相近,但前者枝条光滑无毛,每个花序着花3~5朵,花冠直径达5 cm,花冠裂片长2 cm。凭证标本存放于广西药用植物园标本馆（GXMG）。