Ultrastructural observations on marine choanoflagellates (Choano-flagellida, Acanthoecidae) from the coast of Thailand: species of Apheloecion gen.nov

Three species of loricate choanoflagellates (Choanoflagdlida,Acanthoecidae), collected from the Andaman Sea near Phuket Island(SW Thailand), have been described and referred to Apheloeciongen.nov. (holotype: A. quadrispinum sp.nov.). All species possessa single-chambered lorica composed of one transverse costs overlaidby a limited number of longitudinal costae which converge posteriorly.Anteriorly the longitudinal costae protrude above the transversecosta as sharp pointed spines. In A. quadrispinum sp.nov. andA. pentacanthum sp.nov. the lorica is terminated by a shortposterior spine, whereas in A. articulatum sp.nov. the pedicelis much more prominent, consisting of several costal stripswhich are joined end-to-end. The species of Apheloecion appearto be most closely related to species of Calliacantha and Monocosta.None of the species described are so far known from localitiesoutside the Andaman Sea.     

贵州窗翅叶蝉属三新种(同翅目：大叶蝉科)

记述分布于贵州的窗翅叶蝉属三新种,即锚纹窗翅叶蝉Mileewa anchora sp. nov.、船茎窗翅叶蝉M. ponta sp. nov.和乳突窗翅叶蝉M. papillata sp. nov.。模式标本保存在贵州农学院。     

广西稻田螯蜂三新种记述(膜翅目: 螯蜂科)

该文记述了广西稻田螯蜂3新种：广西双距螯蜂Gonatopus guangxiensis Xu et He, 殃叶蝉双距螯蜂Gonatopus euscelidivorus Xu et He和褐飞虱双距螯蜂Gonatopus nilaparvatae Xu et Yang。模式标本存于浙江农业大学。     

Cunoniaceae in the Cretaceous of Europe: Evidence from Fossil Flowers

Fossil flowers of the Cunoniaceae from Late Cretaceous sedimentsof southern Sweden are described in detail. The flowers aresmall, bisexual, actinomorphic, tetramerous with broadly attachedvalvate sepals; they have narrowly attached petals; eight stamensin two whorls; a massive, lobed nectary; a semi-inferior, syncarpousgynoecium with axile placentation; numerous ovules; separatestyles; and peltate, probably secretory, trichomes. They sharemany features with extant representatives of both the Cunoniaceaeand Anisophylleaceae. However, the gynoecium structure in particularindicates a closer relationship to the Cunoniaceae. The floralcharacters are not specific for any extant genus of the familyand therefore a new genus and species, Platydiscus peltatusgen. et sp. nov., is formally described. This is the first recordof cunoniaceous floral structures from the Northern Hemisphereand the oldest record of Cunoniaceae flowers worldwide. Copyright2001 Annals of Botany Company Anisophylleaceae, Cunoniaceae, fossil flowers, Late Cretaceous, Oxalidales, Platydiscus peltatus gen. et sp. nov., Santonian-Campanian, southern Sweden     

Addenda Clavariacea. III

1. The following noveltiea are described, with notes on otherspecies of their genera : Aphelaria subgen. Tremellodendropsis for the A. tuberosa alliancewith subtremellaceous basidia: A. amboinensis (Lév.)comb. nov. Chaetotyphula gelatinosa sp. nov. and C. tetraspora sp. nov.from Tropical America, whence C. hyalina (Jungh.) Corner isalso recorded. Clavariadelphus junceus (Fr.) Corner is recorded from Brazil. Mucronella flava sp. nov. from Iowa. Phaeoapheloria austra1iensis gen. et sp. nov. is intermediatebetween Aphelaria and stereoid fungi. Pistillaria trispora sp. nov. from Iowa: P. tucumanensis (Speg.)comb. nov. for Typhula tucumanensis Speg. Phistillina calyx Heim is excluded as marasmioid. 2. The Physalacria-subseriea is reviewed, and the followingare described aa new: Hormomitaria albidula sp. nov. from Brazil Pseudotyhula gen. nov. from West Africa: P. ochracea sp. nov.as the typespecies : P. tenuipes (Lloyd) comb. nov. (= Mucronellatenuipes Lloyd).     

Patterns of Root Colonization in Epacridaceous Plants Collected from Different Sites

Root colonization was studied in ten species of the Epacridaceaeat three sites in Victoria by morphological and cross-inoculationexperiments. The sites and genera chosen were Cranbourne [Epacrisimpressa Labill. andLeucopogon ericoides(Smith) R. Br.] andRye [L. parviflorus(Andrews) Lindley] on the Mornington Peninsula,and the Grampians[Astroloma conostephioides(Sond.) Benth.,A.humifusum(Cav.) R. Br.,A pinifolium(R. Br.) Benth,Brachylomadaphnoides(Smith) Benth.,E. impressa, E. impressavar.grandifloraBenth.andStyphelia adscendensR. Br.] in western Victoria. For morphologicalstudies, samples of roots from each species at each site werecleared and stained and examined microscopically. For cross-inoculationstudies, cuttings from each site were struck in potting mediuminoculated with soil from the same and other sites. The ericoidmycorrhizae in the roots of plants found at or grown in Cranbourneand Rye soils were similar. Both were significantly differentfrom the internal hyphae found in the roots of plants foundat or grown in Grampians soils, which were three times largerin diameter and formed dense coils which filled the host celland invaded adjacent epidermal cells. This suggests that morethan one fungus is involved in the relationships, that the MorningtonPeninsula sites had a different fungus from the Grampians siteand that host specificity is low. Vesicular structures werealso found commonly on plants at the Grampians site, in contrastwith other sites. Epacridaceae; root; fungus; mycorrhiza; morphology; inoculation     

PHYLOGENY OF THE GENUS ROSTANGA (NUDIBRANCHIA), WITH DESCRIPTIONS OF THREE NEW SPECIES FROM SOUTH AFRICA

Rostanga elandsia sp. nov., Rostanga aureamala sp. nov. andRostanga phepha sp. nov. are characterized by having the radulawith slender innermost lateral teeth, which lack denticles onthe inner side of the cusp and have a single denticle on theouter side. The outermost lateral teeth of these three speciesare elongate, but shorter than in other species of the genus.In addition, R. aureamala is the only species of the genus withrachidian teeth and R. phepha is unique within the genus Rostanga byvirtue of its white coloration with dark spots. A phylogenetic analysis shows that the three new species fromSouth Africa and Rostanga setidens (Odhner, 1939) are the sistergroup of the rest of the genus. The species from Japan and MarshallIslands (North Pacific Ocean) are basal in the sister cladecontaining the other species of Rostanga Bergh, 1879. The tropicalIndo-Pacific species of Rostanga are not monophyletic. The Atlanticand Eastern Pacific species form a monophyletic, derived clade,being the sister group of Rostanga australis Rudman & Avern,1989, which has a narrow range restricted to south eastern Australia.The widespread Indo-Pacific species Rostanga bifurcata Rudman& Avern, 1989, is the sister group of Rostanga dentacus Rudman& Avern, 1989, also widesprad in the tropical western Pacific. This phylogeny suggest s a viariant origin of the Sourth African, Atlantic-EasternPacific, and probably North Pacific species, whereas in thetropical Indo-Pacific most sister speceis are sympatric. (Received 16 May 1999; accepted 31 July 2000)     

中国特有的弯头果蝇种亚组及二新种记述(双翅目，果蝇科)

本文记述弯头果蝇种亚组的二新种,施氏果蝇 Drosophila (Drosophila) shi sp. nov.,短乳突果蝇Drosophila (Drosophila) brevipapilla sp.nov.,并对中国特有的弯头果蝇种亚组中11 个种的分布进行了分析。     

Einige neue oder bemerkenswerte Flechten mit gyalectoiden Apothecien von Nord-Indien und Nepal

This paper presents the results of taxonomic investigation of 8 species of lichens with gyalectoid apothecia collected in North-India and Nepal. Four species are recognized as new:Dimerella isidiata (sp. nova),D. nepalensis (sp. nova),Gyalideopsis lithophila (sp. nova) andRamonia nepalensis (sp. nova). Four species are reported for the first time from Nepal:Coenogonium moniliforme, Gyalectidium caucasicum, Gyalidea lecideopsis andG. scutellaris.     

Rostromysis bacescuii gen. et sp. nov. and Megalopsis den-ticauda gen. et sp. nov. (Crustacea -- Mysidacea) from the south-west coast of Australia

Rostromysis bacescuii gen. et sp. nov. and Megalopsis denlicaudagen. et sp. nov. belonging to the tribe Leptomysini are describedfrom the south-west coast of Australia. The characters uniqueto the genus Rostromysis are the unusually long club-shapedrostrum and the large delicate lamella-like pleopods of thefemale, thus easily distinguishing it from the allied generaTenagomysis and Doxomysis. The genus Megalopsis is closely alliedto Leptomysis, Prionomysis and Promysis but is readily distinguishablein having a short linguiform uncleft telson with a pair of medianplumose setae.     

Isolated Megaspore Tetrads of Stauropteris burntislandica

A new type of fossil spore tetrad, Didymosporites scotti gen.et sp. nov. is described from the Dinantian and Namurian (Carboniferous)of Ireland, Scotland, and England. The spores always occur inthe form of a tetrad composed of two large (presumably fertile)and two minute (presumably abortive) spores, all with cutinizedwalls. Reasons are given for regarding these as the megasporesof the coenopterid fern Stauropteris burntislandica; their distributionindicates a far wider range in time and space than that previouslyknown for this species. Their occurrence as adhering tetradssuggests that Stauropteris burntislandica 'shed' its megasporesstill enclosed in the sporangiumIan interesting analogy withboth Lepidocarpon and the seeds of Pteridosperms.     

Descriptions of five new species of Haplostylus (Mysidacea-Crustacea) from South West Australia

Five new species, Haplostylus flagelliforma sp. nov., H.similissp. nov., H.multispinosus sp. nov., H.uthupus sp. nov. and H.disparsp. nov., are described from the south-west coast of Australia.These new species are distinguishable from each other and fromthe other allied species by the structure of the pleopods ofthe male, and by the armature of the telson and the uropods.     

Morphological differentiation ofFusarium sambucinum Fuckel sensu stricto,F. torulosum (Berk. & Curt.) Nirenberg comb. nov. andF. venenatum Nirenberg sp. nov.

WithinFusarium sambucinum Fuckel sensu lato three species were differentiated:F. sambucinum Fuckel s. str.,F. torulosum (Berk. et Curt.) Nirenberg comb. nov. andF. venenatum Nirenberg sp. nov. They are described and illustrated in detail.     

A new subfamily of ichneumon wasps (Insecta: Hymenoptera: Ichneumonidae) from the Upper Cretaceous of the Russian Far East

A new subfamily of ichneumon wasps, Labenopimplinae subfam. nov. (Ichneumonidae), is described from the Cenomanian Ola Formation of the locality Obeshchayushchiy, Magadan Region, Russian Far East. The subfamily is highly diverse morphologically and combines characters of the Labeninae and Pimplinae. It includes 11 new species described in five new genera: Labenopimpla rasnitsyni gen. et sp. nov., L. kasparyani sp. nov., Armanopimpla zherikhini gen. et sp. nov, Ramulimonstrum intermedium gen. et sp. nov., Rugopimpla vulgaris gen. et sp. nov., R. fallax sp. nov., R. angusticella sp. nov., R. macra sp. nov., R. matrona sp. nov., Micropimpla lucida gen. et sp. nov., and M. obscura sp. nov. Also described is a new monotypic genus, Tryphopimpla xoridoptera gen. et sp. nov., which combines characters of the Tryphoninae, Pimplinae, and Xoridinae and cannot be currently placed into any of the known subfamilies. The population of fossil ichneumon wasps at this locality is distinctly dominated by females.     

中国长斑蚜属研究及新种记述(同翅目：斑蚜科)

该文系统研究了中国长斑蚜属Tinocallis Matsumura的15种蚜虫,其中包括:1个新种,短节长斑蚜T. microtylodes sp.nov.和2个中国新记录种,斑长斑蚜T.platani(Kaltenbach,1943)和木兰长斑蚜T. magnoliae Ghosh & Raychaudhuri,1972。同时提供了该属中国分布种类的检索表,每种提供有详细的寄主植物和地理分布资料,新种还提供了重要的形态特征图。所有标本包括模式标本均保存在中国科学院动物研究所。     

Three new species of Eupenicillium from soil

Three new species ofEupenicillium are described from soils from the western United States. They areE. idahoense sp. nov.,E. tularense sp. nov., andE. lasseni sp. nov. The conidial stages are new species ofPenicillium.

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Zusammenfassung Drei neue Arten vonEupenicillium vom Erdboden der westlichen Vereinigten Staaten sind beschrieben worden. Diese sind:E. idahoense, sp. nov.,E. tularense, sp. nov. undE. lasseni sp. nov. Die Konidialformen sind neue Arten vonPenicillium.

     

中国长大蚜属Eulachnus del Guercio研究及一新种记述(同翅目：蚜总科，大蚜科)

系统研究了中国的长大蚜属Eulachnus del Guercio, 1909, 共记述12种,其中1个新种,肖高山长大蚜E. similialticola Zhang,sp.nov.; 2种中国新记录种：高山长大蚜E. alticola Borner, 1940和钉毛长大蚜E. tuberculostemmatus (Theobald, 1915)。论文提供了该属的分种检索表,各种提供了寄主植物和地理分布,新种还提供了与其近缘种的示差鉴别。所有研究标本,包括模式标本均保存在中国科学院动物研究所动物标本馆。     

Chlorophycean algae from the Triassic of Australia

Among living green algae assigned to the order Chlorococcales and order Zygnematales certain species develop resistant outer organic walls and/or cysts during their life cycles; as such they have the potential to become fossils. Based on morphology, comparison between living algae and microfossil remains are made with varying degrees of confidence, and a possible evolutionary pathway for certain chlorococcalean coenobial families is suggested. Twelve genera are reviewed from earliest to latest Triassic palynological assemblages from northwestern Australia; and the following taxa are described as new: Plaesiodictyon mosellanum ssp. symmetricum ssp. nov.; Plaesiodictyon mosellanum ssp. variabile ssp. nov.; Plaesiodictyon decussatus sp. nov.; Plaesiodictyon decussatus ssp. decussatus ssp. nov.; Plaesiodictyon decussatus ssp. tetracornuta ssp. nov.; Tetraporina protrusa sp. nov.; Crucigeniella? torques sp. nov.; and Paleoraphidia akestra gen. et sp. nov. (type). Their suggested natural affinities are useful in palaeoenvironmental interpretations of mostly freshwater or low-salinity habitats.     

A revision of the Nasa ranunculifolia group (Nasa ser. Grandiflorae pro parte,Loasaceae)

The monophyletic Nasa ranunculifolia group (Nasa ser. Grandiflorae pro parte) is revised on the basis of extensive field studies and a revision of copious herbarium material. All species of this group are from the high Andes of Peru and Ecuador (mostly 3000–4300 m). The overall degree of morphological divergence is much lower than in other groups of Nasa and many of the various local ‘races’ are best recognized as ecogeographically isolated subspecies. Thus, six species and 13 subspecies are recognized on the basis of differences in leaf and floral morphology, growth habit, life history and distribution. Nasa ranunculifolia, N. macrantha, N. cymbopetala and N. macrorrhiza are united as subspecies under N. ranunculifolia. An additional five subspecies of N. ranunculifolia are newly described (ssp. pamparomasii, ssp. guzmangoensis, ssp. bolivarensis, ssp. patazensis and ssp. huanucoensis). Nasa rugosa is subdivided into four subspecies, three of them new (ssp. llaqtacochaensis, ssp. gracilipes and ssp. pygmaea). Nasa tulipadiaboli sp. nov. and N. basilica sp. nov. are described as new species. Eight taxa (seven subspecies and one species) are endemic to the Amotape–Huancabamba Zone, and seven of them (six subspecies and one species) are new to science. Only a single species ranges into the Amotape–Huancabamba Zone from the south, underscoring the high levels of endemism (and taxonomic novelty) in this area. Illustrations, distribution maps, a key and diagnoses are given for all taxa recognized. © 2011 The Linnean Society of London, Botanical Journal of the Linnean Society, 2011, 167 , 47–93.