Showing papers on "Genus published in 1995"
TL;DR: Phylogenetic analysis of the combined data sets of the divergent domain D2 of the 25S ribosomal RNA gene and of the internal transcribed spacers indicated that sub- genus Elfvingia was monophyletic, whereas sections Characoderma and Phaeonema were not.
Abstract: Over 250 species have been described in Ganoderma. Species identification and species circumscription are often unclear and taxonomic segregation of the genus remains controversial. In this study w...
287 citations
TL;DR: The alkaloid composition of 56 species of the genus Lupinus was studied by capillary gas-liquid chromatography and GLC-mass spectrometry and their relative abundances in leaves and seeds are recorded.
285 citations
TL;DR: Except in limited circumstances, genus richness appears to be an unreliable surrogate for species richness in local Australian ant faunas and may apply more generally to taxa in which a relatively small number of genera can contribute a large proportion of species.
192 citations
28 Mar 1995
182 citations
177 citations
TL;DR: Names used for nemertean genera and species of the world are listed alpha-betically, with their original description citations, synonymy and current taxonomic status.
Abstract: Names used for nemertean genera and species of the world are listed alpha-betically, with their original description citations, synonymy and current taxonomic status. Though many remain inadequately described, 250 genera and 1149 species are recognized as valid; these comprise Archinemertea (3 genera, 28 species), Palaeonemertea (11, 70), Heteronemertea (79, 401), monostiliferous Hoplonemertea (91, 500), reptantic polystiliferous Hoplonemertea (22, 45), pelagic polystiliferous Hoplonemertea (40, 97), Bdellonemertea (1, 5) and three monotypic genera whose higher taxonomic affinities are uncertain. In addition, three monotypic genera of fossil Nemertea are also listed. The higher systematic position and typical ecological habits of its species are shown for each valid genus, type-species are indicated, and brief details of species known habitats and distribution are noted.
171 citations
TL;DR: The 18S rRNA sequence data suggest that, among taxa that share similar vegetative cell morphologies, the zoospore characters resolve better the actual genus and species boundaries, and a new class, Trebouxiophyceae, is proposed for this group of green algae.
Abstract: Complete nuclear-encoded small-subunit ribosomal RNA (18S rRNA) coding sequences were determined for the coccoid green algae Dictyochloropsis reticulata (Tschermak-Woess) Tschermak-Woess, Myrmecia astigmatica Vinatzer, and M. bisecta Reisigl, to investigate the taxonomic position of Dictyochloropsis Geitler and of the genus Myrmecia Printz. Phylogenies inferred from these data revealed a sister-group relationship between D. reticulata and certain coccoid green algae that lack motile stages (autosporic coccoids) within the order Microthamniales. The monophyletic origin of the Microthamniales, including autosporic coccoids previously classified in the Chlorophyceae, is clearly resolved by the rRNA sequence data. This finding. shows the considerable taxonomic breadth of that order, whose taxonomic position has been unclear so far. A new class, Trebouxiophyceae, is proposed for this group of green algae. Phylogenetic inferences from the rRNA sequences show paraphyly of the genus Myrmecia. The 18S rRNA sequence data suggest that, among taxa that share similar vegetative cell morphologies, the zoospore characters resolve better the actual genus and species boundaries. Within identical zoospore types, the rRNA data allow further resolution of taxonomic relationships. On the basis of the.se findings, I propose that the genus Friedmannia Chantanachat ± Bold be merged into Myrmecia and that only those species be left in the genus Myrmecia that are identical in particular zoospore characters (i.e. those described in detail for M. israeliensis (Chantanachat ± Bold) comb, nov.), namely M. astigmatica, M. biatorellae (Tschermak-Woess ± Ptesst) Petersen, and M. israeliensis. Myrmecia bisecta has to be excluded from Myrmecia; its taxonomic position within the Trebouxiophyceae is unclear.
165 citations
01 Jan 1995
153 citations
151 citations
TL;DR: This checklist lists the named anostracan fauna of the world at 258 species and seven subspecies oraganized in 21 genera, with the most species rich genus being Streptocephalus with 58 described species level taxa.
Abstract: In this checklist, we number the named anostracan fauna of the world at 258 species and seven subspecies organized in 21 genera. The list contains all species described through 31 December 1993, and those new species names made available in previous pages of this volume. The most species rich genus is Streptocephalus with 58 described species level taxa. Chirocephalus with 43, Branchinecta 35, and Branchinella 33 occupy the next three places. With the exception of Branchipodopsis and Eubranchipus each having 16 species, all the other genera include less than 10 species each. The need for zoogeographic study of these animals is demonstrated by the fact that almost 25% of the named taxa are known only from their type localities.
TL;DR: The numbers of extant ant taxa in the world are analysed taxonomically and zoogeographically and the endemicity and speciosity of genera are tabulated on a regional basis.
Abstract: The numbers of extant ant taxa in the world are analysed taxonomically and zoogeographically. A table detailing numbers of subfamilies, tribes and genera, and the numbers of species they contain, and one analysing the number of species per genus per zoogeographical region, are presented. Subfamilies are analysed by number and percentage of genera and species; the most speciose genera are isolated and listed in terms of absolute size and speciosity per subfamily. Tables detailing total numbers of genera and species per subfamily per region, and endemic genera per subfamily per region are given, and the endemicity and speciosity of genera are tabulated on a regional basis.
TL;DR: Almost complete small-subunit ribosomal DNA sequences of 50 reference strains belonging to the genera Corynebacterium, Rhodococcus, and Gordona were determined and confirmed that these sequences form a monophyletic taxon within the phylum containing the high-G+C-content gram-positive bacteria.
Abstract: We determined almost complete small-subunit ribosomal DNA sequences of 50 reference strains belonging to the genera Corynebacterium, Rhodococcus, and Gordona and compared these sequences with previously published sequences. Three phylogenetic methods (the neighbor-joining, maximum-likelihood, and maximum-parsimony methods), as well as a bootstrap analysis, were used to assess the robustness of each topology which we obtained. The results of comparative phylogenetic analyses confirmed that the genera Corynebacterium, Dietzia, Gordona, Mycobacterium, Nocardia, Tsukarmurella, and Turicella form a monophyletic taxon within the phylum containing the high-G+C-content gram-positive bacteria. The genus Corynebacterium appeared to be a monophyletic unit whose members could be divided into four major clusters. The validity of the genus Turicella is doubtful since members of this genus clearly belong to the genus Corynebacterium. The variability of chemotaxonomic characteristics within the genus Corynebacterium suggests that small-subunit ribosomal DNA sequence analysis is probably the most straightforward method for confirming that a bacterium belongs to this genus.
01 Jan 1995
TL;DR: The present knowledge of dendrobatid frogs of the genus Colostethus in Ecuador is summarized and taxonomically useful characters (e.g., external morphology, gonads, tadpoles, and calls) are described.
Abstract: The present knowledge of dendrobatid frogs of the genus Colostethus in Ecuador is summarized. The taxonomic history of the genus is discussed and taxonomically useful characters (e.g., external morphology, gonads, tadpoles, and calls) are described. Thirty-one species are recognized, including five new species described herein. Eight nominal species are assigned to its synonymy; they
Book•
01 Jan 1995
TL;DR: This book serves as a comprehensive catalogue to the entire butterfly fauna of the Afrotropical region and contains all genus-group, species-group and infrasubspecific names applied to the Af Rotropical Butterfly fauna, a total of about 14,000 names.
Abstract: Intended for biologists with an interest in Africa and African butterflies, this book serves as a comprehensive catalogue to the entire butterfly fauna of the Afrotropical region. It covers 3593 species in 300 genera - about 20% of the world butterfly fauna; and contains all genus-group, species-group and infrasubspecific names applied to the Afrotropical butterfly fauna, a total of about 14,000 names. Bibliographic reference provided for all genus, species and infrasubspecific names, as are the type species designation for all genus-group names. The sequence of families, subfamilies, tribes and genera reflects current knowledge of classification. Information of distribution, habitats and known larval hostplants provided for all species. A comprehensive introduction includes sections on general behaviour, biogeography and early stage biology, together with a gazetteer and list of regional works. Features include: 300 photographs which illustrate one representative species for each genus; and a comprehensive cbibliography. The text is fully indexed.
TL;DR: A review of variability of ciliation and nuclei among the 14 genera suggests that lines of evolution may have involved both the loss of cirri and nuclear simplification in the order Euplotida.
Abstract: The order Euplotida represents a monophyletic order of five families of hypotrich ciliates united by morphology, stomatogenesis, ultrastructure, cyst structure, and behavior. A review of variability of ciliation and nuclei among the 14 genera suggests that lines of evolution may have involved both the loss of cirri and nuclear simplification. We present a binary key to genera in the families Aspidiscidae (Aspidisca and Euplotaspis), Certesiidae n. fam. (Certesia), Gastrocirrhidae (Cytharoides, Euplotidium, and Gastrocirrhus), Uronychiidae (Diophryopsis, Diophrys, Paradiophrys, and Uronychia), and Euplotidae. The latter family contains species formerly in the genus Euplotes. Based primarily on cortical structure, endosymbionts, data from morphometric analysis, and ecology, we recognize four different groups. The first group of species remains in Euplotes with Euplotes charon as type. We place a second group of species into the genus Moneuplotes Jankowski 1979 with Moneuplotes vannus (Miller, 1786) as type. We erect two new genera: Euplotoides n. g. and Euplotopsis n. g. with Euplotoides patella (Miller, 1773) n. comb. and Euplotopsis affinis (Dujardin, 1841) n. comb. as type species respectively. We discuss possible phylogenetic relationships within the order.
TL;DR: The historical burden placed on the genus Haemogregarina Danilewsky, 1885 as a repository for poorly known and inadequately described species is partially relieved through taxonomic revisions involving the genera Haemogenarina, and Desseria n.
Abstract: . The phylogenetic relationships of taxa representative of blood parasitic adeleids were investigated in a cladistic analysis. Two phylogenetic analyses were performed. Monophyly of species of Haemogregarina (sensu lato) of some marine fishes with species of Haemogregarina (sensu stricto) was not supported in either analysis. A new genus, Desseria n. g., was created to accommodate these species. The historical burden placed on the genus Haemogregarina Danilewsky, 1885 as a repository for poorly known and inadequately described species is partially relieved through taxonomic revisions involving the genera Haemogregarina, and Desseria n. g.
TL;DR: The spatial and temporal distribution pattern of fossil Pseudolarix indicates that displacement between Eurasia and North America from the Late Jurassic/Early Cretaceous to the Plio-Pleistocene occurred through Beringia and the newly defined Spitsbergen Corridor; the North Atlantic routes were apparently not used by Pseud polarix.
Abstract: The fossil record of Pseudolarix (Pinaceae) reveals wide distribution in North America and Eurasia from at least the Early Cretaceous (Berriasian) and possibly the Late Jurassic (Portlandian) to the Plio-Pleistocene. Several hundred reproductive and vegetative remains, representing two species of Pseudolarix, were recovered from sediments of Eocene age on Axel Heiberg and Ellesmere Islands, Canadian Arctic Archipelago. These specimens form the basis for reassessment of the fossil record of the genus and evaluation of morphology and variability of seed-cone scales, winged seeds, leaves, and brachioblasts. Unfortunately, most reports of Pseudolarix lack sufficient details of the character traits of the cone scales, particularly those of the bracts, that are required for identification at the species level. Following review of the known fossil record, only two species are recognized, discrimination being based on differences in length and morphology of the bract subtending the cone scale. One species, the sh...
TL;DR: This is it, the theropithecus the rise and fall of a primate genus that will be your best choice for better reading book.
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TL;DR: The chemistry of secondary metabolites and their distribution in the family Cystoseiraceae will be illustrated, and some taxonomic implications will be discussed.
TL;DR: A new species of treefrog of the genus Scinax is described from southern Sao Paulo, Atlantic Forest, in southeastern Brazil, characterized by moderate size, head longer than wide, snout nearly rounded in profile and subacuminate in dorsal view.
Abstract: A new species of treefrog of the genus Scinax is described from southern Sao Paulo, Atlantic Forest, in southeastern Brazil. The new species is a member of the Scinax rubra group characterized by moderate size, head longer than wide, snout nearly rounded in profile and subacuminate in dorsal view. Descriptions of the advertisement call and karyotype, as well as data on natural history, are provided. The inclusion of the species assigned presently to S. x-signata group in the S. rubra group is proposed.
TL;DR: An account precursory to a monographic treatment of Cactaceae tribe Rhipsalideae De Candolle is presented covering the genera Lepismium Pfeiffer, Rhipsalis Gaertner, Hatiora Britton & Rose and Schlumbergera Lemaire.
Abstract: An account precursory to a monographic treatment of Cactaceae tribe Rhipsalideae De Candolle is presented covering the genera Lepismium Pfeiffer (6 subgenera: 14 spp.), Rhipsalis Gaertner (5 subgenera: 33 spp.), Hatiora Britton & Rose (2 subgenera: 5 spp.) and Schlumbergera Lemaire (6 spp.). Keys to enable identification of subgenera and species are provided for each genus. For Rhipsalis, 3 species and 2 subspecies are named for the first time and throughout the tribe various new name combinations are validated at the ranks of subgenus, subspecies and forma. Bibliographic and typification data are provided for all accepted names and their basionyms, and a summary of geographical distribution and ecology, where known, is given for each species and/or subspecies recognized. Names of uncertain application are discussed and an index to all commonly encountered binomial synonyms is provided.
TL;DR: Molecular studies confirm Brachypodium as an isolated ancient genus best placed in its own tribe (Brachypodieae).
TL;DR: An integrated study of genetics, karyology, palaeontology, morphology and parasitology is suggested as the means of assessing the value of various evolutionary hypotheses proposed in the literature.
Journal Article•
01 Jan 1995
TL;DR: The skulls of 387 shrews of the genus Crocidura sampled in peninsular Malaysia, Sumatra, Borneo, Java and Sulawesi were submitted to principal component and stepwise discriminant analyses, helping to delineate morphological taxa in this species-rich genus of mammals.
TL;DR: Several conifer species assign to the Cheirolepidiaceae and one species assigned to the Taxodiaceae are described from the Early Cretaceous Puddledock locality, Virginia, eastern USA, and some new morphological characters allow an emended diagnosis of Pseudofrenelopsis are revealed.