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1.
2.
Nine new species ofSolanum and two ofCapsicum are described from Bolivia. Notes are provided on some other species, including the complex typification ofSolanum aridum.Capsicum caballeroi, C. ceratocalyx, Solanum chalmersii, S. clandestinum, S. comarapanum, S. complectens, S. monanthemon, S. moxosense, S. pedemontanum, S. saturatum, andS. whalenii are described and illustrated, and a new name,S. scuticum, is proposed for the species previously known asS. tabacifolium.  相似文献   

3.
In preparation of a treatment of Swartzia (Leguminosae) for the Flora Mesoamericana, recent updates to the taxonomy of the genus in Central America are discussed, and two new species from the Pacific slope and lowlands of central and southern Costa Rica are described and illustrated. One of them, S. picramnioides, is a member of the section Possira and is closely related to S. standleyi of Guatemala and Belize and to the South American species S. myrtifolia. The other, S. zeledonensis, belongs to the Central American apetalous clade of section Terminales. It is probably most closely related to the Panamanian species, S. nuda. We conclude that Swartzia is represented in Mexico and Central America by 14 species and provide a key for their identification.  相似文献   

4.
Three species of the genus Cacopsylla were collected from Sorbus japonica in Japan. Two of them, Cacopsylla elegans and Cacopsylla sorbicoccinea, are described as new species based on adults and fifth (final) nymphal instars. The third species, Cacopsylla midoriae, is newly transferred from the genus Psylla. The adult of C. midoriae is redescribed and the nymph is described for the first time. A key to the species feeding on S. japonica (adults and nymphs) is provided. The three species were observed to coexist on the same tree of S. japonica in northern Kyushu. Such coexistence of psylloid congeners is uncommon in Japan.  相似文献   

5.
The Scorpaena cardinalis complex, including S. cardinalis, S. jacksoniensis and S. orgila, is defined. The genus Ruboralga (type species: S. jacksoniensis) is regarded as a junior synonym of Scorpaena. Scorpaena jacksoniensis Steindachner 1866, previously treated as a junior synonym of Scorpaena cardinalis Solander and Richardson 1842, is regarded here as a valid species. Scorpaena cookii Günther 1874, previously treated as a valid species, is regarded here as a junior synonym of S. cardinalis. Thus, recent recognition of the two Australasian scorpionfishes, i.e., S. cardinalis and S. cookii, are re-identified in this study as S. jacksoniensis and S. cardinalis, respectively. Scorpaena plebeia Solander 1842 is regarded as a junior synonym of S. cardinalis. Scorpaena jacksoniensis is distributed along the east coast of Australia from southern Queensland to eastern Victoria, whereas S. cardinalis occurs around northern New Zealand, the Kermadec Islands and offshore islands of the Tasman Sea. A neotype is designated for S. cardinalis. Morphological changes with growth in the two species are described in detail.  相似文献   

6.
Several species of the family Petraliellidae were first described from the coast of Queensland, including the type species of Sinupetraliella, S. litoralis. These species are redescribed from type, or topotype specimens, and include Petraliella concinna, which has not been certainly found since its introduction in 1891; lectotype material is designated for P. buski and P. magna. Six other species are described from Queensland, P. crassocirca, P. dentilabris, P. dorsiporosa, Mucropetraliella bennetti, M. serrata and M. tuberosa. The species Mucropetraliella tuberosa is a new addition to the Queensland fauna and is described and illustrated here for the first time since its introduction in 1884. The characters of the family Petraliellidae are briefly discussed and the genera to which the Queensland species are assigned is reviewed. A taxonomic key to the ten Queensland petraliellid species described is also provided.  相似文献   

7.
Spongipellis litschaueri, described in 1931 from Austria, is often synonymised with S. delectans in current literature. Morphological and molecular approaches were applied to revise the taxonomic position of this species. The basidiospore dimensions and DNA sequences confirmed differences between S. delectans and S. litschaueri, thus the latter should be kept as a distinct species. However, the relationship between S. litschaueri and its North American kin S. unicolor is complex. Although most of the examined specimens of S. unicolor differ significantly from S. litschaueri in morphological and molecular characters, one American isolate showed markedly high DNA sequence similarity to the European species. Moreover, specimens of S. unicolor from the more or less western USA have larger basidiospores than the others and the respective values are similar to S. litschaueri. Thereby, S. unicolor may split in two taxa where one is closely related to S. litschaueri. Additionally, DNA sequences of a large subunit of the nuclear ribosomal RNA gene were analysed to elucidate the position of Spongipellis within the Polyporales. The results revealed unexpected polyphyly when the generic type S. spumeus fell into a separate lineage from S. delectans, S. litschaueri, S. pachyodon, and S. unicolor. In addition, Tyromyces fissilis occasionally kept in Spongipellis is not related to any species of the genus nor to Tyromyces chioneus, the generic type of Tyromyces. An identification key of European Spongipellis species is provided.  相似文献   

8.
Summary A new species of Torulopsis is described; it was isolated from some materials used for silage. This species is named Torulopsis wickerhamii nova species in honour of Prof. L. J. Wickerham of Northern Regional Research Laboratory at Peoria-Illinois-U.S.A.  相似文献   

9.
10 new Turkish taxa are described:Arenaria eliasiana, A. sivasica, A. monscragus, A. angustifolioides; Campanula lycica; Scutellaria orientalis subsp.tortumensis; Stachys choruhensis, S. tundjeliensis; Calamintha caroli-henricana; Aristolochia rechingeriana, the latter two species named in honour ofKarl Heinz Rechinger;Allium vuralii. Dedicated to Prof. DrKarl Heinz Rechinger on the occasion of his 80th birthday. For part I see Pl. Syst. Evol.154, 111–128.  相似文献   

10.
The twisted-wing parasite Elenchus japonicus is a major parasitoid of rice planthoppers (Hemiptera: Delphacidae), including the brown planthopper Nilaparvata lugens, the white-backed planthopper Sogatella furcifera, and the small brown planthopper Laodelphax striatellus. Another Elenchus species, E. yasumatsui, which is considered to be synonymous with E. japonicus, has also been described in southern Asia. However, limited biological and molecular data on this important parasitoid of rice planthoppers are available. In this study, E. japonicas-stylopized planthoppers were obtained from various regions in Asia and Japan. Sequences of the nuclear 18S ribosomal RNA gene and the mitochondrial cytochrome oxidase I gene of the strepsipterans were analyzed from 40 samples of E. japonicus: 14 from N. lugens, 6 from S. furcifera and 20 from L. striatellus. Sequence analysis of these samples revealed three genotypes of E. japonicus. Of the three types of E. japonicus, one was isolated only from L. striatellus from northern Japan. The other two types were found in all three rice planthopper species collected from a wide area in Asia. These results suggest that the three different genotypes of Elenchus can be associated with a particular geographical region and/or planthopper species. The relationship between two previously described Elenchus species and the present three genotypes needs to be elucidated.  相似文献   

11.
12.
Three new species of Stemphylium were isolated from diseased leaves of Luffa cylindrica, Lycium chinense and Cucumis melo growing in the Sinkiang province of Northwest China. Stemphylium luffae, S. lycii and S. cucumis are described by morphological and molecular phylogenetic analyses. The principal morphological characteristics of these three species are congruent with those of Stemphylium. They are distinguished from morphologically similar Stemphylium species based on characteristics of their conidia and conidiophores. In order to establish the molecular phylogenetic status of these species, DNA loci including the internal transcribed spacer (ITS) nuclear rDNA region and the glyceraldehyde-3-phosphate dehydrogenase (gpd) genes were amplified and sequenced. Phylogenetic analyses using Maximum-Parsimony (MP) and Neighbor-Joining (NJ) were performed on the combined DNA sequences of ITS and gpd gene regions. Both morphological observations and molecular analyses support S. luffae, S. lycii and S. cucumis as three new taxa.  相似文献   

13.
Organelle inheritance is strictly maternal for most plant species. This property makes organelle DNAs ideal material for identifying the maternal parents of polyploid species. A chloroplast DNA (cpDNA) clone from Stylosanthes was identified. Together with rice cpDNA clones, it was used in identifying putative maternal donors for polyploid Stylosanthes species. Of 15 taxa for which 2 or more accessions each were analysed, intra-taxon cpDNA variation was only identified within the diploid species S. viscosa. Of the nine basal diploid genomes identified, results from the cpDNA probes strongly suggested that Genome A1 is the maternal donor to S. aff. hamata, S. scabra, S. aff. scabra, S. sericeiceps and S. tuberculata and that it may also be the maternal donor to the hexaploid S. erecta; Genome C is the maternal donor to S. sp. A, S. mexicana, S. subsericea and S. sundaica; Genome E is the maternal donor to S. capitata. The maternal donor to S. fruticosa is likely to be Genome B3, and that to S. ingrata is likely to be Genome A1. The maternal donor to S. sympodialis, although similar to those of S. sp. genotypes, may not be included amongst the diploid taxa analysed in this study. The fact that none of the polyploid genotypes produced cpDNA fragments from more than one of their respective progenitors indicated that cpDNA in Stylosanthes is strictly maternally inherited. Received: 17 September 1999 / Accepted: 20 April 2000  相似文献   

14.
Strict sterility barriers where found between theScutellaria populations on Sicily and the Greek populations. The material from Samos is separated by a strict sterility barrier from the other Greek populations. In contrast, the populations on mainland Greece and adjacent islands are all ± interfertile. Three species are recognized,S. rubicunda Hornem., endemic to Sicily, andS. brevibracteata subsp.icarica, endemic to Samos and Ikaria. All other populations are referred toS. rupestris with eight subspecies, most of which are endemic to one island or to one mountain. Three new subspecies are described, viz. subsp.rechingeri and subsp.olympica, endemic to mt Vourinos and mt Olympus in North Greece, respectively, and subsp.caroli-henrici, native to the Malea peninsula of Peloponnisos. The phytogeographical connections and genetic differentiation within and between populations are discussed.Dedicated to Prof. DrK. H. Rechinger on the occasion of his 80th birthday.  相似文献   

15.
Electrophoretic investigations of Brassica campestris revealed 8 polymorphic loci that had not been described earlier. The inheritance of 7 of them was determined by crosses between different accessions of B. campestris. A phylogeny of B. campestris, B. nigra, B. alboglabra, Sinapis arvensis and S. alba was estimated from the analysis of 15 isozyme loci. The phylogeny showed a close relationship between B. nigra and S. arvensis and a less close relationship between B. campestris and B. oleracea. S. alba was remotely-related to all of the other species.  相似文献   

16.
All Taphrina species are dimorphic with a mycelium stage biotrophic on vascular plants and a saprophytic yeast stage. European species of Taphrina on Alnus species (Betulaceae) were identified using morphological, physiological and molecular characteristics, the latter including determination of PCR fingerprints and of nucleotide sequences from selected nuclear ribosomal DNA regions. PCR fingerprinting gives a good overview of species identification, as do nucleotide sequences, which in addition, help to clarify phylogenetic relationships. Taphrina alni is a homogeneous species that exhibited more than 50% similarity in PCR fingerprinting with three different primers. Morphologically, it produces tongue-like outgrowths from female catkins of Alnus incana. Taphrina robinsoniana from A. rugosa and A. serrulata in North America is phylogenetically closely related to T. alni, but the two species could be separated by their PCR fingerprints, partial sequences of 26S rDNA (D1/D2) and ITS1/ITS2 sequences. T. epiphylla and T. sadebeckii are two phylogenetically closely related species. T. epiphylla causes witches brooms in crowns of A. incana. In addition, T. epiphylla forms slightly yellow white-grey leaf spots in midsummer on A. incana. Yellow white-grey leaf spots up to 10 mm on A. glutinosa are characteristic for T. sadebeckii. Both species can be separated well by PCR fingerprinting. Different from T. epiphylla, T. sadebeckii is genotypically more heterogeneous. Only two out of three different primers showed similarity values above 50% in different European strains of T. sadebeckii. Although genetic variability was not detected in complete sequences of the 18S ribosomal DNA of T. sadebeckii, ITS1/ITS2 sequences appeared to be more heterogeneous, too. Taphrina tosquinetii is a genotypically homogeneous species causing leaf curl on Alnus glutinosa. It was not possible to distinguish the yeast phases from different Taphrina species on Alnus using morphological and physiological characteristics only. Dedicated to Prof. Dr. Hanns Kreisel on the occasion of his 70th birthday  相似文献   

17.
Three new species of the genus Stelis from Mexico are described and illustrated; they were recently collected in the Tacana volcano region of Chiapas, and are named as S. annedamoniae, S. hagsateri, and S. soconuscana. For each species information is provided about habitat, phenology, and conservation status, and the relationships with similar taxa are discussed. Stelis andamoniae is similar to S. hagsateri and both are sympatric at the Tacana volcano; they are members of the Stelis argentata complex. The first has red-wine flowers, and glabrous sepals, while S. hagsateri has greenish-yellow flowers and glandular-papillose sepals. Stelis soconuscana is similar to S. bidentata, from which it is different by its broader leaves, raceme as long as the leaf, smaller flowers, and its distribution.  相似文献   

18.
Wang A  Chen Y  Chen G  Lee J  Fu C 《Biochemical genetics》2008,46(5-6):281-292
Smilax china L. is a widespread species in China with different ploidy levels. It is morphologically similar to S. davidiana, S. trinervula, and S. glauco-china. In this study, the chromosome number and the variation in allozyme patterns of eight enzyme systems with 25 alleles in 11 populations of S. china and three affinitive species were investigated. The allozyme data, together with morphological and cytological data, suggest that S. glauco-china is not closely related to the other taxa investigated. The diploid species S. davidiana and S. trinervula are involved as ancestor species and share great introgressions with S. china. In S. china, populations from Guilin and Guiyang are allotetraploid; their diploid progenitors probably are diploid populations of S. china and S. trinervula. The results suggest this species arose from multiple origins.  相似文献   

19.
Zhu P  Li Q  Wang G 《Microbial ecology》2008,55(3):406-414
Invasive species poses a threat to the world’s oceans. Alien sponges account for the majority of introduced marine species in the isolated Hawaiian reef ecosystems. In this study, cultivation-dependent and cultivation-independent techniques were applied to investigate microbial consortia associated with the alien Hawaiian marine sponge Suberites zeteki. Its microbial communities were diverse with representatives of Actinobacteria, Firmicutes, α- and γ-Proteobacteria, Bacteroidetes, Chlamydiae, Planctomycetes, and Cyanobacteria. Specifically, the genus Chlamydia was identified for the first time from marine sponges, and two genera (Streptomyces and Rhodococcus) were added to the short list of culturable actinobacteria from sponges. Culturable microbial communities were dominated by Bacillus species (63%) and contained actinobacterial species closely affiliated with those from habitats other than marine sponges. Cyanobacterial clones were clustered with free-living cyanobacteria from water column and other environmental samples; they show no affiliation with other sponge-derived cyanobacteria. The low sequence similarity of Planctomycetes, Chlamydiae, and α-Proteobacteria clones to other previously described sequences suggested that S. zeteki may contain new lineages of these bacterial groups. The microbial diversity of S. zeteki was different from that of other studied marine sponges. This is the first report on microbial communities of alien marine invertebrate species. For the first time, it provides an insight into microbial structure within alien marine sponges in the Hawaiian marine ecosystems.  相似文献   

20.
Polytene chromosomes of four members of the Simulium perflavum species group in Brazil are described, and a standard map for the species group is presented. Simulium rorotaense Floch & Abonnenc, S. perflavum Roubaud and an undescribed species (S.‘X’) are chromosomally conservative, each representing a single species with a unique preimaginal habitat. Chromosomal, morphological and ecological evidence indicates that S. maroniense Floch & Abonnenc, previously considered synonymous with S. rorotaense, is a good species. Independent morphological and chromosomal analyses yielded 99.4% agreement in separating larvae of S. rorotaense and S. maroniense. The two species can be distinguished by gill morphology or by a subterminal inversion on the long arm of chromosome III. Simulium maroniense consists of at least four cytotypes, each with different sex chromosomes and autosomal polymorphism profiles and associated with a particular landscape type, altitude, temperature regime or geographical location. Simulium rorotaense and S. maroniense share one unique inversion, as do S. perflavum and S. ‘X’, indicating two pairs of sister species. The anthropogenic S. perflavum probably dispersed into Central Amazonia sometime after the mid-1970s.  相似文献   

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