Karrabina gen. nov. (Cunoniaceae), for the Australian species previously placed in Geissois, and a synopsis of genera in the tribe Geissoieae

2013 ◽  
Vol 26 (3) ◽  
pp. 167 ◽  
Author(s):  
H. C. F. Hopkins ◽  
A. C. Rozefelds ◽  
Y. Pillon
Keyword(s):  
South America ◽  
Phylogenetic Analyses ◽  
Sensu Stricto ◽  
Variable Number ◽  
Western Pacific ◽  
The South ◽  
Australian Species ◽  
Molecular Phylogenetic ◽  
Species Groups

Comparison of the four species groups comprising the tribe Geissoieae (Lamanonia in South America, Geissois sensu stricto from islands in the south-western Pacific, and Pseudoweinmannia and Geissois in Australia) showed differences in the stipules, inflorescences and flowers. Molecular phylogenetic analyses suggested that Geissois sensu lato is paraphyletic, with Australian Geissois being closer to Pseudoweinmannia than to New Caledonian Geissois. The name Karrabina is published to accommodate the Australian species formerly placed in Geissois, namely K. benthamiana Rozefelds & H.C.Hopkins and K. biagiana Rozefelds & H.C.Hopkins. Distinguishing characters for Karrabina are: four lateral stipules per node that vary from free to largely fused between and sometimes across the petioles; inflorescences with a variable number of metamers and racemes, with both median and lateral modules that always lack a median raceme; and pale flowers with five or six calyx lobes and shortly exserted stamens. Geissois s.s. differs in having: two intrapetiolar stipules per node; inflorescences consisting of few metamers and few racemes, with the modules being always lateral and possessing a median raceme; flowers with four red calyx lobes and prominently exserted stamens. The generic limits of Lamanonia and Pseudoweinmannia remain unchanged.

DNA barcoding reveals multiple overlooked Australian species of the red algal order Rhodymeniales (Florideophyceae), with resurrection of Halopeltis J. Agardh and description of Pseudohalopeltis gen. nov.

Botany ◽  
2010 ◽  
Vol 88 (7) ◽  
pp. 639-667 ◽  
Author(s):  
Gary W. Saunders ◽  
Brian McDonald
Keyword(s):  
Dna Barcode ◽  
South Australia ◽  
Sensu Stricto ◽  
Cryptic Diversity ◽  
Additional Species ◽  
Australian Species ◽  
Lord Howe Island ◽  
Red Algal ◽  
Species Groups ◽  
Genetic Species

The DNA barcode (COI-5P) was used to investigate cryptic diversity among Rhodymenia spp. in southern Australia. Whereas eight species are currently recognized, we uncovered ca. 20 genetic species groups, phylogenetically assigned to four genera in two families. Procumbent specimens with molecular and anatomical signatures of the Fryeellaceae are assigned to Pseudohalopeltis tasmanensis gen. et sp. nov. Collections from Lord Howe Island recorded in the field as Rhodymenia / Fauchea sp. are assigned to the poorly known genus Microphyllum as Microphyllum robustum sp. nov. A cluster of species with distinct molecular and anatomical attributes is included in a resurrected Halopeltis J.G. Agardh, including Halopeltis australis (J. Agardh) comb. nov. (type species); Halopeltis austrina (Womersley) comb. nov.; Halopeltis cuneata (Harvey) comb. nov. [including Rhodymenia halymenioides (J. Agardh) Womersley]; Halopeltis gracilis sp. nov.; Halopeltis prostrata sp. nov.; and Halopeltis verrucosa (Womersley) comb. nov. Four additional species of Halopeltis from Lord Howe Island (LH1, LH2), Tasmania (TAS), and Western Australia are not characterized further. For Rhodymenia sensu stricto, similar levels of cryptic diversity were noted. Samples tentatively field-identified as “ Rhodymenia sonderi ,” but having affiliations to Rhodymenia rather than Halopeltis, are referred to Rhodymenia novahollandica sp. nov. Collections field-identified as R. obtusa are genetically distinct from that species and are assigned to Rhodymenia wilsonis (Sonder) comb. nov. Two highly divergent species currently identified as Rhodymenia leptophylla (LH from Lord Howe Island; TAS from Tasmania), as well as two additional cryptic previously unnamed taxa from South Australia (SA) and Victoria (VIC), are not characterized further.

A molecular phylogenetic and DNA barcode assessment of the tribe Pterosiphonieae (Ceramiales, Rhodophyta) emphasizing the Northeast Pacific

Botany ◽  
2016 ◽  
Vol 94 (10) ◽  
pp. 917-939 ◽  
Author(s):  
Amanda M. Savoie ◽  
Gary W. Saunders
Keyword(s):  
South African ◽  
North American ◽  
New Genus ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Dna Barcode ◽  
Sensu Stricto ◽  
North American Species ◽  
African Species ◽  
Molecular Phylogenetic

Sequence data (COI-5P and rbcL) for North American members of the tribe Pterosiphonieae were compared with collections from around the world. Phylogenetic analyses resolved Pterosiphonia as polyphyletic and many species required transfer to other genera. In our analyses Pterosiphonia sensu stricto included only the type species P. cloiophylla (C. Agardh) Falkenberg and P. complanata (Clemente) Falkenberg, as well as the South African species P. stegengae sp. nov. A new genus, Xiphosiphonia gen. nov., was described for X. ardreana (Maggs & Hommersand) comb. nov., X. pennata (C. Agardh) comb. nov., and X. pinnulata (Kützing) comb. nov. Some Asian, European and North American species previously attributed to Pterosiphonia were transferred to Symphyocladia including S. baileyi (Harvey) comb. nov., S. dendroidea (Montagne) comb. nov., S. plumosa nom. nov. (for P. gracilis Kylin), and S. tanakae (S. Uwai & M. Masuda) comb. nov. We also described two new North American species, Symphyocladia brevicaulis sp. nov. and S. rosea sp. nov. Other species formed a well-supported clade for which the genus name Polyostea Ruprecht was resurrected. Included in Polyostea were P. arctica (J. Agardh) comb. nov., P. bipinnata (Postels & Ruprecht) Ruprecht, P. hamata (E.S. Sinova) comb. nov., and P. robusta (N.L. Gardner) comb. nov.

scholarly journals Morphological and molecular evidence for the occurrence of Itajahya galericulata (Basidiomycota, Phallales) in India

2018 ◽  
Vol 63 (2) ◽  
pp. 39-44
Author(s):  
Ravi S. Patel ◽  
Ajit M. Vasava ◽  
Kishore S. Rajput
Keyword(s):  
South America ◽  
Phylogenetic Analyses ◽  
Its Sequences ◽  
Molecular Evidence ◽  
Nuclear Rdna ◽  
Gujarat State ◽  
Rdna Its ◽  
Molecular Phylogenetic ◽  
Rdna Its Sequences ◽  
The City

AbstractItajahya galericulata (Phallales, Phallaceae) was previously reported from several countries in South America and Africa. Recently we found I. galericulata in the city of Vadodara, Gujarat State, India. To verify its identity we studied its morphology and performed molecular phylogenetic analyses using nuclear rDNA LSU and mitochondrial ATP6 loci. Here we also provide nuclear rDNA ITS sequences for the Indian collection, since up to now no sequences of this region have been available for I. galericulata in GenBank. This study furnishes the first evidence for the occurrence of I. galericulata in India and in Asia as a whole.

Cortinarius khinganensis (Agaricales), a new species of section Illumini from Northeast China

Phytotaxa ◽  
2021 ◽  
Vol 500 (1) ◽  
pp. 1-10
Author(s):  
MENG-LE XIE ◽  
TIE-ZHENG WEI ◽  
BÁLINT DIMA ◽  
YONG-PING FU ◽  
RUI-QING JI ◽  
...  
Keyword(s):  
New Species ◽  
Phylogenetic Relationships ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Sensu Stricto ◽  
Similar Species ◽  
Molecular Phylogenetic ◽  
A New Species

This study presents one telamonioid species new to science based on morphological characteristics and molecular phylogenetic analyses. Cortinarius khinganensis was collected from the Greater Khingan Mountains, Northeast China and it is characterized by hygrophanous, vivid brownish red and striate pileus, white universal veil, and subglobose spores. According to phylogenetic analyses results, C. khinganensis belongs to the section Illumini, which is a lineage distantly related from subgenus Telamonia sensu stricto. Detailed descriptions of the new species and the comparisons with morphologically similar species are provided. The phylogenetic relationships within the section Illumini are also discussed.

Palicella lueckingii (Lecanorales, Ascomycota), a new lichen species inhabiting Araucaria from the extratropical South America

Phytotaxa ◽  
2018 ◽  
Vol 344 (1) ◽  
pp. 24 ◽  
Author(s):  
PAMELA RODRIGUEZ-FLAKUS
Keyword(s):  
New Species ◽  
Maximum Likelihood ◽  
South America ◽  
Gene Locus ◽  
Phylogenetic Analyses ◽  
Single Gene ◽  
Bayesian Analyses ◽  
Morphological Studies ◽  
Molecular Phylogenetic ◽  
Araucaria Araucana

Palicella lueckingii is a newly described corticolous lecideoid lichen from the Malalcahuelo National Reserve growing on the bark of Araucaria araucana in Chile. Detailed morphological studies and inference from molecular phylogenetic analyses, based on maximum likelihood and Bayesian analyses of single gene locus (ITS), clearly indicate that the new species is a member of the recently introduced genus Palicella. Palicella lueckingii is most closely related to P. glaucopa, but clearly differs in having smaller ascospores, comparatively thicker thallus, epruinose apothecia, lack of oil droplets inside of exciple and presence of thiophanic acid as a major metabolite.

Comparative seed morphology of the Antillean genus Calycogonium (Melastomataceae: Miconieae) as a source of characters to untangle its complex taxonomy

Phytotaxa ◽  
2014 ◽  
Vol 166 (4) ◽  
pp. 241 ◽  
Author(s):  
ELDIS R. BÉCQUER ◽  
FABIÁN A. MICHELANGELI ◽  
THOMAS BORSCH
Keyword(s):  
Phylogenetic Analyses ◽  
Phylogenetic Reconstruction ◽  
Seed Morphology ◽  
Flower Morphology ◽  
Suitable Material ◽  
Molecular Phylogenetic ◽  
Species Groups ◽  
The Caribbean ◽  
Seed Characters ◽  
Shape And Size

In order to assess seed morphology 47 species of Miconieae (Melastomataceae) from the Antilles were studied. The majority of these species belong to Calycogonium, a complex genus that has been shown to be polyphyletic, but for which we lack for many species any recent and suitable material for molecular systematics studies. A better understanding of homoplastic versus synapomorphic seed characters may therefore be helpful to illuminate the affinities of such species. Some taxa from Clidemia, Miconia, Ossaea, Pachyanthus and Tetrazygia were also sampled due to their morphological similarities with some species of Calycogonium. Variable seed characters include overall shape and size, raphe shape and size, and testa sculpturing. Based on these characters we grouped the species in five seed types, and an additional three species were found to have distinctive seeds that were not grouped with any other species. Species with identical seed types often belong to more than one genus as currently classified. There are five groups of species within Calycogonium characterized by similar seed morphology but none of the respective seed types is exclusive to the genus. Some of these seed types correlate well with previously proposed subgeneric groups of Calycogonium based on flower morphology and presences and type of leaf domatia. While the occurrence of some seed characters and states matches species groups in Calycogonium also found with molecular phylogenetic analyses, seed morphology generally indicates relationships of Calycogonium and allied taxa of the Caribbean clade that are not completely reflected by the current generic classification. The study provides a matrix for seed characters of the included species that will serve further phylogenetic reconstruction and analyses of character evolution.

scholarly journals Contribution to chromosome numbers and phylogeny of Turkish Vincetoxicum Wolf (Apocynaceae, Asclepiadoideae)

2019 ◽  
Author(s):  
Seher Güven ◽  
Serdar Makbul ◽  
Kamil Coşkunçelebì
Keyword(s):  
Chromosome Numbers ◽  
Phylogenetic Analyses ◽  
Molecular Data ◽  
Sensu Stricto ◽  
Species Level ◽  
Nrdna Its ◽  
Chromosome Counts ◽  
As Species ◽  
Molecular Phylogenetic

We report chromosome counts for ten taxa of Vincetoxicum sensu stricto (s. str.) (Apocynaceae) from Turkey (of which two are endemic), including the first chromosome counts for V. canescens subsp. pedunculata, V. funebre, V. fuscatum subsp. boissieri, V. parviflorum and V. tmoleum. Two taxa of V. fuscatum proved to be tetraploid (2n=44) and the remaining eight taxa diploid (2n=22). Molecular phylogenetic analyses based on nrDNA (ITS) and cpDNA (trnT-trnL) (including 31 newly generated sequences) confirm the position of the Turkish Vincetoxicum in the Vincetoxicum s. str. clade. Vincetoxicum fuscatum, V. parviflorum, V. speciosum, as well as the Turkish endemic V. fuscatum subsp. boissieri, were clearly resolved as species-level clades, whereas the delimitation of the rest of the Turkish taxa was less clear based on molecular data.

scholarly journals Reclassification of Parapterulicium Corner (Pterulaceae, Agaricales), contributions to Lachnocladiaceae and Peniophoraceae (Russulales) and introduction of Baltazaria gen. nov.

MycoKeys ◽  
2018 ◽  
Vol 37 ◽  
pp. 39-56 ◽  
Author(s):  
Caio A. Leal-Dutra ◽  
Maria Alice Neves ◽  
Gareth W. Griffith ◽  
Mateus A. Reck ◽  
Lina A. Clasen ◽  
...  
Keyword(s):  
Type Species ◽  
Original Work ◽  
Phylogenetic Analyses ◽  
Sensu Stricto ◽  
Brazilian Species ◽  
Molecular Phylogenetic ◽  
The 1950S

The genus Parapterulicium was first introduced to accommodate two Brazilian species of coralloid fungi with affinities to Pterulaceae (Agaricales). Despite the coralloid habit and the presence of skeletal hyphae, other features, notably the presence of gloeocystidia, dichophyses and papillate hyphal ends, differentiate this genus from Pterulaceaesensu stricto. Fieldwork in Brazil resulted in the rediscovery of two coralloid fungi identifiable as Parapterulicium, the first verified collections of this genus since Corner’s original work in the 1950s. Molecular phylogenetic analyses of nrITS and nrLSU sequences from these modern specimens revealed affinities with the /peniophorales clade in the Russulales, rather than Pterulaceae. The presence of distinctive hyphal elements, homologous to the defining features of /peniophorales, is consistent with the phylogenetic evidence and thus clearly distinguished Parapterulicium and its type species P.subarbusculum from Pterulaceae, placing this genus within /peniophorales. Parapterulicium was also found to be polyphyletic so Baltazaria gen. nov. is proposed to accommodate P.octopodites, Scytinostromagalactinum, S.neogalactinum and S.eurasiaticogalactinum also within /peniophorales.

scholarly journals Phylogeny of the fern family Aspleniaceae in Australasia and the south-western Pacific

2014 ◽  
Vol 27 (6) ◽  
pp. 355 ◽  
Author(s):  
Daniel J. Ohlsen ◽  
Leon R. Perrie ◽  
Lara D. Shepherd ◽  
Patrick J. Brownsey ◽  
Michael J. Bayly
Keyword(s):  
New Zealand ◽  
East Asia ◽  
Phylogenetic Analyses ◽  
Western Pacific ◽  
South East Asia ◽  
The South ◽  
Widespread Species ◽  
Species Complexes ◽  
The Family

Aspleniaceae is one of the largest fern families. It is species-rich in Australasia and the south-western Pacific (ASWP), where approximately 115 species occur. In the current study, the chloroplast regions rbcL, trnL–trnF and rps4–trnS were sequenced for 100 Aspleniaceae samples from ASWP. These data were combined with published sequences for species from New Zealand and other regions for phylogenetic analyses. Species of Aspleniaceae from ASWP were placed in six of the eight previously identified inter-continental clades. The majority of species from ASWP were placed in two of these clades, with the remaining four clades each being represented by three or fewer species. Strong biogeographic affinities with South-east Asia were observed and immigration, rather than local radiations of endemic taxa, appears to have made a more important contribution to patterns of diversity in ASWP. This study supports the current taxonomic practice of recognising two genera, Asplenium L. and Hymenasplenium Hayata, in Aspleniaceae, and identifies future taxonomic work required for the family in this region, including potential synonymising of species, and revision of species complexes or widespread species that are demonstrably non-monophyletic.

scholarly journals Anemonastrum tenuicaule and A. antucense (Ranunculaceae), new combinations for a New Zealand endemic species and its South American relative

PhytoKeys ◽  
2018 ◽  
Vol 99 ◽  
pp. 107-124 ◽  
Author(s):  
Sergei L. Mosyakin ◽  
Peter J. de Lange
Keyword(s):  
New Zealand ◽  
South America ◽  
Morphological Diversity ◽  
Distribution Patterns ◽  
Sensu Stricto ◽  
South American ◽  
Long Distance ◽  
Molecular Phylogenetic ◽  
Relationship Of ◽  
Base Chromosome Number

A rational taxonomic circumscription of genera in tribe Anemoneae (Ranunculaceae) is briefly discussed. It is concluded that, in view of the morphological diversity of the group and recent molecular phylogenetic findings, a moderately narrow approach to the re-circumscription of genera earlier included in Anemone sensu lato is preferable, in particular, with the recognition of the lineage with the base chromosome number x = 7 (Anemonesubgen.Anemonidium) as two genera, Hepatica sensu stricto and Anemonastrum in an expanded circumscription (including Anemonidium, Arsenjevia, Jurtsevia, and Tamuria). Following these conclusions, new nomenclatural combinations are proposed for two related species endemic to New Zealand and South America, respectively: Anemonastrumtenuicaule (= Anemonetenuicaulis, Ranunculustenuicaulis) and Anemonastrumantucense (= Anemoneantucensis). Information on typification is updated: the lectotype of Anemoneantucensis is the specimen from P and not a specimen from G, and the lectotype of Ranunculustenuicaulis is a specimen from AK. Biogeographic scenarios already proposed to explain the relationship of these two species and some other South America – New Zealand distribution patterns are discussed. It is concluded that the long-distance dispersal scenario fits best the available data for Anemonastrum. Two host-specific and geographically restricted species of Urosystis parasitizing A.tenuicaule and A.antucense are briefly discussed.

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