Le genisteto-carlinetum macrocephalae ass. nov. De l'étage montagnard et le ligusticetum corsici ass. nov. De l'étage subalpin des massifs du cinto et du campotile orientale

Sans résuméJe tiens à remercier M. le Dr. J. Braun-Blanquet de la généreuse hospitalité qu'il m'a offerte à la S.I.G.M.A. et des précieux conseils qu'il m'a dispensés pour la définition de ces associations. C'est la raison pour laquelle il m'a paru nécessaire de l'associer à l'une des Associations originales que j'ai décrites.Je suis également reconnaissant à mes amis M. et G. Roux d'avoir permis le traitement de mes données floristiques par l'analyse factorielle des correspondances.     

Le Genisteto-Carlinetum macrocephalae ass. nov. de l'étage montagnard et le Ligusticetum corsici ass. nov. de l'étage subalpin des Massifs du Cinto et du Campotile orientale

Sans résuméJe tiens à remercier M. le Dr.J. Braun-Blanquet de la généreuse hospitalité qu'il m'a offerte à la S.I.G.M.A. et des précieux conseils qu'il m'a dispensés pour la définition de ces associations. C'est la raison pour laquelle il m'a paru nécessaire de l'associer à l'une des Associations originales que j'ai décrites.Je suis également reconnaissant à mes amisM. et G. Roux d'avoir permis le traitement de mes données floristiques par l'analyse factorielle des correspondances.     

Legenisteto-carlinetum macrocephalae ass. nov. de l’étage montagnard et le ligusticetum corsici ass. nov. de l’étage subalpin des massifs du cinto et du campotile orientale

Résumé Au cours d’investigations phytosociologiques que nous avons menées sur l’étage montagnard des massifs du Nord de la Corse, nous nous sommes particuli?rement int?ress? aux groupements des “pentes écorchées” (J. Briquet 1901), représentés par des garrigues á xérophytes épineux. Ces formations, qui avaient fait l’objet d’une étude préalable de R. de Litardiére (1926 et 1928), nous ont permis d’aboutir á la d?finition phytosociologique de deux associations nouvelles. Ce travail a ?té entrepris sur les versants Sud du massif du Cinto, dans le Niolo et la vallée supérieure du Tavignano, autour du lac de Nino. Je tiens á remercier M. le Dr. J. Braun-Blanquet de la généreuse hospitalité qu’il m’a offerte á,la S.I.G.M.A. et des précieux conScils qu’il m’a dispensés pour la définition de ces associations. C’est la raison pour laquelle il m’a paru nécessaire de l’associer á l’une des Associations originales que j’ai décrites. Je suis également reconnaissant á mes amis M. et G. Roux d’avoir permis le traitement de mes données floristiques par l’analyse factorielle des correspondances.     

НОВЫЙ ВИЗЕЙСКИЙ РОД СПИРИФЕРИД-Grandispirifer gen.nov.

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Pseudophillipsia azzouzi nov. sp. Trilobite griffithididé Permien du Djebel Tebaga (Tunisie)

Pseudophillipsia azzouzi nov. sp., found by L. Memmi and J. David in the Dolomies superieures Series of the Djebel Tebaga, takes part of the Ps. sumatrensis-Group. Its stratigraphical position in the Kazanian-Pamirian boundary is in accordance with the global distribution of that Group. The tunisian species, characterized by its ornamentation (particularly of the pygidium), is also remarkable by its large size, twice that of the type-species.     

НОВЫЙ ВИЗЕЙСКИЙ РОД СПИРИФЕРИД-Grandispirifer gen.nov.

1957年春,地质陈列馆胡承志、牛业华在云南路南老第三系地层中采集了一批哺乳类化石,其中的一部分标本已经研究发表(周,1958)。在这篇报告中,我们又描述了一个完整的雷兽类的头骨,代表一个新的渐新世种。此外,尚有一些未经描述的材料,也将陆续予以描述发表。路南老第三系地层,经过对最近采集的一些哺乳类化石的研究,表明这是到目前为止,代表华南地区最完整的一个老第三系剖面,包括从上始新统至上渐新统间的全套地层,和几个不同时代的脊推动物化石层。进一步的地层调查和化石的系统采集,将对华南老第三系地层的了解和区域对比提供重要的基本研究资料。     

Ougandatherium napakense nov. gen. nov. sp., le plus ancien Rhinocerotidae Iranotheriinae d’Afrique

Ougandatherium napakense nov. gen. nov. sp., the earliest Rhinocerotidae Iranotheriinae from Africa. The Uganda Palaeontology Expedition discovered an exceptionally rich fossiliferous channel deposit at Napak I, Karamoja, in 1999, which yielded two partial skeletons of a new genus and species of early Miocene Rhinocerotidae, together with various other mammals and gastropods typical of Faunal Set I of East Africa. The age of the deposits on the basis of both faunal correlation (biochronology) and radio-isotopic dating is ca 19–20 Ma. The new genus and species is a hornless rhinoceros about the size of a small horse, with long slender limb bones and metapodials and hypsodont upper cheek teeth whose enamel is undulate, and fossettes cement-filled. Upper premolars possess an inner wall; this is clearly an iranotheriine morphology. As such it is the earliest known African member of this subfamily, close to the oldest member of the subfamily recently discovered at Bugti in Pakistan, a site whose age is about the same.     

Neokomagataea gen. nov., with Descriptions of Neokomagataea thailandica sp. nov. and Neokomagataea tanensis sp. nov., Osmotolerant Acetic Acid Bacteria of the α-Proteobacteria

Isolates AH11^T and AH13^T were isolated from flowers of lantana and candle bush respectively collected in Thailand. In phylogenetic trees based on 16S rRNA gene sequences, the two isolates formed an independent cluster, which was then connected to the type strain of Saccharibacter floricola. The calculated pair-wise 16S rRNA gene sequence similarities of isolate AH11^T were 95.7–92.3% to the type strains of the type species of the 12 genera of acetic acid bacteria. The DNA base composition was from 51.2 to 56.8 mol % G+C, with a range of 5.6 mol %. When isolate AH11^T was labeled, DNA-DNA similarities were 100, 12, 4, 5, and 4% respectively to isolates AH11^T and AH13^T and the type strains of Saccharibacter floricola, Gluconobacter oxydans, and Acetobacter aceti. The two isolates were non-motile and did not oxidize either acetate or lactate. No growth was found in the presence of 0.35% acetic acid w/v. The two isolates were not osmophilic but osmotolerant, produced 2,5-diketo-D-gluconate from D-glucose, and did not oxidize lactate, thus differing from strains of Saccharibacter floricola, which showed weak lactate oxidation. The two isolates contained unsaturated C_18:1ω7c fatty acid as the major fatty acid, and were unique in the presence of a considerable amount of straight-chain C_18:12OH fatty acid. Q-10 was present as the major isoprenoid quinone. Neokomagataea gen. nov. was proposed with the two species, Neokomagataea thailandica sp. nov. for isolate AH11^T (=BCC 25710 ^T =NBRC 106555^T), which has 56.8 mol % G+C, and Neokomagataea tanensis sp. nov. for isolate AH13^T (=BCC 25711^T=NBRC 106556^T), which has 51.2 mol % G+C.     

Neokomagataea gen. nov., with descriptions of Neokomagataea thailandica sp. nov. and Neokomagataea tanensis sp. nov., osmotolerant acetic acid bacteria of the α-Proteobacteria

Isolates AH11(T) and AH13(T) were isolated from flowers of lantana and candle bush respectively collected in Thailand. In phylogenetic trees based on 16S rRNA gene sequences, the two isolates formed an independent cluster, which was then connected to the type strain of Saccharibacter floricola. The calculated pair-wise 16S rRNA gene sequence similarities of isolate AH11(T) were 95.7-92.3% to the type strains of the type species of the 12 genera of acetic acid bacteria. The DNA base composition was from 51.2 to 56.8 mol % G+C, with a range of 5.6 mol %. When isolate AH11(T) was labeled, DNA-DNA similarities were 100, 12, 4, 5, and 4% respectively to isolates AH11(T) and AH13(T) and the type strains of Saccharibacter floricola, Gluconobacter oxydans, and Acetobacter aceti. The two isolates were non-motile and did not oxidize either acetate or lactate. No growth was found in the presence of 0.35% acetic acid w/v. The two isolates were not osmophilic but osmotolerant, produced 2,5-diketo-D-gluconate from D-glucose, and did not oxidize lactate, thus differing from strains of Saccharibacter floricola, which showed weak lactate oxidation. The two isolates contained unsaturated C(18:1)ω7c fatty acid as the major fatty acid, and were unique in the presence of a considerable amount of straight-chain C(18:1)2OH fatty acid. Q-10 was present as the major isoprenoid quinone. Neokomagataea gen. nov. was proposed with the two species, Neokomagataea thailandica sp. nov. for isolate AH11(T) (=BCC 25710(T)=NBRC 106555(T)), which has 56.8 mol % G+C, and Neokomagataea tanensis sp. nov. for isolate AH13(T) (=BCC 25711(T)=NBRC 106556(T)), which has 51.2 mol % G+C.     

Corynebacterium antarcticum sp. nov., Corynebacterium marambiense sp. nov., Corynebacterium meridianum sp. nov., and Corynebacterium pygosceleis sp. nov., isolated from Adélie penguins (Pygoscelis adeliae)

A taxonomic study was conducted on 16 bacterial strains isolated from wild Adélie penguins (Pygoscelis adeliae) from Seymour (Marambio) Island and James Ross Island. An initial screening by repetitive sequence-based PCR fingerprinting divided the strains studied into four coherent groups. Phylogenetic analysis based on 16S rRNA gene sequences assigned all groups to the genus Corynebacterium and showed that Corynebacterium glyciniphilum and Corynebacterium terpenotabidum were the closest species with 16S rRNA gene sequence similarities between 95.4 % and 96.5 %. Further examination of the strains studied with ribotyping, MALDI-TOF mass spectrometry, comprehensive biotyping and calculation of average nucleotide identity and digital DNA–DNA hybridisation values confirmed the separation of the four groups from each other and from the other Corynebacterium species. Chemotaxonomically, the four strains P5828^T, P5850^T, P6136^T, P7210^T representing the studied groups were characterised by C_16:0 and C_18:1 ω9c as the major fatty acids, by the presence of meso-diaminopimelic acid in the peptidoglycan, the presence of corynemycolic acids and a quinone system with the predominant menaquinone MK-9(H₂). The results of this study show that the strains studied represent four new species of the genus Corynebacterium, for which the names Corynebacterium antarcticum sp. nov. (type strain P5850^T = CCM 8835^T = LMG 30620^T), Corynebacterium marambiense sp. nov. (type strain P5828^T = CCM 8864^T = LMG 31626^T), Corynebacterium meridianum sp. nov. (type strain P6136^T = CCM 8863^T = LMG 31628^T) and Corynebacterium pygosceleis sp. nov. (type strain P7210^T = CCM 8836^T = LMG 30621^T) are proposed.     

华南大羽羊齿植物一新属--Fujianopteris gen.nov.

《中国古生代植物》首次将Gigantopteris这一属名限定在一些具重网状叶脉的大羽羊齿类植物,如真正的G．nicotmnaetblia等,而叶脉简单结网的一些植物则大多被归入Gigantonoclea属。这一比较简便的做法近年也开始受到质疑。Gigantopteris fukienensis Yabe et Oishi,1938也是因为叶脉简单结网而被改归于Gigantopteris属内。问题在于G．fukienensis的脉式与华北典型的Gigantonoclea迥异,它的三级脉以合轴二歧式一等二歧式分叉,细脉彼此间只是偶尔联结,而主要是借助与缝脉相交形成伸长形的网眼。加之,网眼内不具点痕,而每一网眼内有1—2个点痕则是华北典型Gigantonoclea的特征之一。根据叶脉特征,作者为一些三级脉以等二歧式一合轴二歧式分叉、细脉仅偶尔相互联结而主要借助与相邻脉束或缝脉相交而形成网眼、网眼内不具点痕的一些相关植物建立了新属Fujmnopteris gen．nov．,并对此属的4个种(包括1新种)作了种的特征描述和有关的讨论和比较。     

Cold-adapted yeasts from Antarctica and the Italian Alps—description of three novel species: Mrakia robertii sp. nov., Mrakia blollopis sp. nov. and Mrakiella niccombsii sp. nov.

Worldwide glaciers are annually retreating due to global overheating and this phenomenon determines the potential lost of microbial diversity represented by psychrophilic microbial population sharing these peculiar habitats. In this context, yeast strains, all unable to grow above 20°C, consisting of 42 strains from Antarctic soil and 14 strains isolated from Alpine Glacier, were isolated and grouped together based on similar morphological and physiological characteristics. Sequences of the D1/D2 and ITS regions of the ribosomal DNA confirmed the previous analyses and demonstrated that the strains belong to unknown species. Three new species are proposed: Mrakia robertii sp. nov. (type strain CBS 8912), Mrakia blollopis sp. nov. (type strain CBS 8921) and a related anamorphic species Mrakiella niccombsii sp. nov. (type strain CBS 8917). Phylogenetic analysis of the ITS region revealed that the new proposed species were closely related to each other within the Mrakia clade in the order Cystofilobasidiales, class Tremellomycetes. The Mrakia clade now contains 8 sub-clades. Teliospores were observed in all strains except CBS 8918 and for the Mrakiella niccombsii strains.     

Paléoxylologie: Étude anatomique comparée de Scleromedulloxylon aveyronense nov. gen. nov. sp. du Permien de St-Affrique (Aveyron,France); considérations taxinomiques et stratigraphiques

The fossil woods studied in the present paper were collected by P. Béziat in the Permian Basin of St-Affrique (Southern Aveyron). They come from near Calmels. They are the first fossil woods collected and described in this basin.The secondary wood refers to the form genus Dadoxylon and more exactly to the speciesDadoxylon schrollianum (Goeppert, 1864–65) Frentzen, 1931, Frentzen, 1931. The pith is certainly related with the pith structure of Walchiapremnon valdajolenseFlorin, 1940.The association of a Dadoxylon secondary wood with an irregularly septate pith containinggroups of probably sclerotic cells can be found in Cedroxylon varollenseRenault, 1893–1896, Renault and Roche, 1894 from the Basin of Autun. It is not possible to conserve the species varollense in the genus Cedroxylon and we propose the form genus Scleromedulloxylon for the petrified structure from Autun and for the fossil woods of St-Affrique.Furthermore, a comparative anatomical study of the different Permo-Carboniferous structuresfrom the Euramerican province let us, when it is possible, distinguish structure-types related to Cordaitophyts or to Coniferophyts. In the present case, Scleromedulloxylo should rather correspond to the fossil wood of an Autunian Coniferophyt, that is to Walchia structure.     

Ameyamaea chiangmaiensis gen. nov., sp. nov., an Acetic Acid Bacterium in the α-Proteobacteria

Two isolates, AC04^T and AC05, were isolated from the flowers of red ginger collected in Chiang Mai, Thailand. In phylogenetic trees based on 16S rRNA gene sequences, the two isolates were included within a lineage comprised of the genera Acidomonas, Gluconacetobacter, Asaia, Kozakia, Swaminathania, Neoasaia, Granulibacter, and Tanticharoenia, and they formed an independent cluster along with the type strain of Tanticharoenia sakaeratensis. The calculated pair-wise sequence similarities of isolate AC04^T were 97.8–92.5% to the type strains of the type species of the 11 genera of acetic acid bacteria. The DNA base composition was 66.0–66.1 mol % G+C with a range of 0.1 mol %. A single-stranded, labeled DNA from isolate AC04^T presented levels of DNA-DNA hybridization of 100, 85, 4, and 3% respectively to DNAs from isolates AC04^T and AC05 and the type strains of Tanticharoenia sakaeratensis and Gluconacetobacter liquefaciens. The two isolates were unique morphologically in polar flagellation and physiologically in intense acetate oxidation to carbon dioxide and water and weak lactate oxidation. The intensity in acetate oxidation almost equaled that of the type strain of Acetobacter aceti. The two isolates had Q-10. Isolate AC04^T was discriminated from the type strains of the type species of the 11 genera by 16S rRNA gene restriction analysis using restriction endonucleases TaqI and Hin6I. The unique phylogenetic, genetic, morphological, physiological, and biochemical characteristics obtained indicate that the two isolates can be classified into a separate genus, and Ameyamaea chiangmaiensis gen. nov., sp. nov. is proposed. The type strain is isolate AC04^T (=BCC 15744^T, =NBRC 103196^T), which has a DNA G+C content of 66.0 mol %.     

A contribution to the knowledge of the pteridosperm genera Pseudomariopteris Danzé-Corsin nov. emend. and Helenopteris nov. gen

The macromorphology and epidermal anatomy of three Late Carboniferous-Early Permian pteridosperm species, conventionally assigned to the form-genus Pseudomariopteris Danzé-Corsin, are described from the Stephanian of the Blanzy-Montceau Basin (Central France). The generic diagnosis of Pseudomariopteris is emended, and P. busquetii is designated as the type species of the genus. The combination P. cordato-ovata (Weiss) Gillespie et al. is validated to replace the illegitimate name P. ribeyronii (Zeiller) Danzé-Corsin. The species diagnoses of P. busquetii and P. cordato-ovata are emended. On the basis of its epidermal anatomy, P. paleaui, another species orininally described from Central France, is transferred to the newly established genus Helenopteris Krings et Kerp, and the new combination Helenopteris paleaui is introduced. Lectotypes of P. busquetii and H. paleaui are selected. In addition, specimens from other basins are (re-)examined and illustrated. Seeds attached to a P. busquetii specimen suggest a callistophytalean relationship for Pseudomariopteris. Compression fossils and cuticles of Pseudomariopteris and Helenopteris are interpreted in terms of palaeoecology: Pseudomariopteris busquetii and P. cordato-ovata had climbing/scrambling growth habits; specialized climber hooks can be demonstrated for both species, either in compression or in cuticular preservation. Although the growth habit of H. paleaui is not yet entirely clear, the size of its fronds suggests that this taxon most probably was also a scrambler/climber. Finally, based on epidermal features, a tentative reconstruction of stages of the pinnule ontogeny of H. paleaui is provided.     

Vampyronassa rhodanica nov. gen. nov sp., vampyromorphe (Cephalopoda,Coleoidea) du Callovien inférieur de la Voulte-sur-Rhône (Ardèche,France)

Vampyronassa rhodanica nov. gen. nov. sp., Vampyromorpha (Cephalopoda, Coleoidea) from the Lower Callovian of la Voulte-sur-Rhône (Ardèche, France). The Vampyromorpha, an order of cephalopods closely related to Octopoda, have been yet undubitably identified only in recent time, always in deep oceanic waters. Their occurrence since the Middle Jurassic is evidenced by about twenty specimens from the Lower Callovian of la Voulte-sur-Rhône (Ardèche), which exhibit vampyromorph fundamental features : eight sessile arms showing one row of suckers with bordering cirri, a web uniting the arms, a pair of brachial tentacles, well shaped lateral eyes, an internal uncalcified supporting organ (gladius), a pair of supero-posterior fins, two postero-dorsal light-organs, no ink-sac. These specimens, here assigned to the new genus and species Vampyronassa rhodanica, still differ from recent Vampyromorpha by their two first dorsal sessile arms clearly longer than the others, their more important funnel and their longer and slightly more spindle-like body. This characteristic Middle Jurassic vampyromorph leads to admit a much older origin for this cephalopod order. The probably mesopelagic mode of life of this new vampyromorph is then tentatively examined. Critical arguments about the assignment to Vampyromorpha of three large teuthid-like species from the Upper Jurassic of Germany are developed.     

Kayserops? cantarmoricus nov. sp., Trilobite Asteropyginae du Devonien moyen armoricain et cantabrique

The discovery in rocks of Middle Devonian age of a new Asteropyginae, Kayserops? cantarmoricus n. sp., common to both Central Armorican Syncline (Rade de Brest, France) and the south flank of the Cantabrian Mountains (Spain), suggests a geographical connection, perhaps temporary, between these two regions. The particular morphological characteristics of this species shed new light on present knowledge of the sub-family Asteropyginae.     

Ambrosiozyma kamigamensis sp. nov. and A. neoplatypodis sp. nov., two new ascomycetous yeasts from ambrosia beetle galleries

Two new yeast species of the genus Ambrosiozyma are described on the basis of comparison of nucleotide sequences of large subunit of ribosomal DNA D1/D2 region. Ambrosiozyma kamigamensis and Ambrosiozyma neoplatypodis differ from Ambrosiozyma ambrosiae by 17 nucleotides (3.0%) and 16 nucleotides (2.8%), respectively, out of 565. The two species differ from each other by 13 nucleotides. Ambrosiozyma kamigamensis was isolated from galleries of the ambrosia beetle, Platypus quercivorus, in specimens of Quercus laurifolia and Castanopsis cuspidata located in the southern part of Kyoto, Japan. Ambrosiozyma neoplatypodis was isolated from similar material, but only in Q. laurifolia. Ambrosiozyma kamigamensis can be distinguished from the other Ambrosiozyma species by the inability to assimilate erythritol, whereas A. neoplatypodis can be distinguished by the ability to assimilate both L: -arabinose and nitrate. The type strains of A. kamigamensis and A. neoplatypodis are JCM 14990(T) (=CBS 10899(T)) and JCM 14992(T) (=CBS 10900(T)), respectively. This is the first report of new Ambrosiozyma species since the genus was proposed.