scholarly journals Update on the systematics of Benstonea (Pandanaceae): When a visionary taxonomist foresees phylogenetic relationships

Phytotaxa ◽  
2013 ◽  
Vol 112 (2) ◽  
pp. 57 ◽  
Author(s):  
MARTIN W. CALLMANDER ◽  
THOMAS J. BOOTH ◽  
HENK BEENTJE ◽  
SVEN BUERKI
Keyword(s):  
Phylogenetic Relationships ◽  
Staminate Flower ◽  
Morphological Characters ◽  
New Combinations ◽  
Adaxial Side ◽  
Phylogenetic Data

The paleotropical monocot Pandanaceae family comprises c. 700 species distributed into five genera: Benstonea (c. 60 spp.), Freycinetia (c. 250 spp.), Martellidendron (6 spp.), Pandanus (c. 450 spp.) and Sararanga (2 spp.). Benstonea was circumscribed to include species previously placed in Pandanus section Acrostigma (one of the four sections of Pandanus subgenus Acrostigma). New phylogenetic data show that the six species of the remaining three sections of subgenus Acrostigma (sections Epiphytica, Fusiforma and Platystigma) and a seventh species doubtfully placed in section Acrostigma (Pandanus microglottis) also belonged to Benstonea. This genus is therefore characterized by a suite of morphological characters, viz. stigmatic groove on the adaxial side of the stigma and a staminate flower reduced to 1 to 3 free stamens (sometimes joined at base). We therefore make here the necessary seven new combinations accompanied by one lectotypification in Benstonea, a genus that now reflects the view of the visionary Benjamin Stone who had already grouped these species in Pandanus subgenus Acrostigma based solely on morphology.

Morphological phylogeny and taxonomic revision of the former antlion subtribe Periclystina (Neuroptera: Myrmeleontidae: Dendroleontinae)

Zootaxa ◽  
2020 ◽  
Vol 4796 (1) ◽  
pp. 1-322
Author(s):  
RENATO JOSE PIRES MACHADO ◽  
JOHN DAVID OSWALD
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Phylogenetic Relationships ◽  
Taxonomic Revision ◽  
New Guinea ◽  
Morphological Characters ◽  
Valid Species ◽  
New Combinations ◽  
New Genera ◽  
Parsimony Analysis

The species of the former antlion subtribe Periclystina (Neuroptera: Myrmeleontidae) are revised. Prior to this work Periclystina comprised 10 genera and 63 species endemic to Australia (62 spp.) and New Guinea (1 sp.). In this work two former genera are synonymized and four new genera are proposed (for a total of 12 valid genera), and six former species are synonymized and 16 new species are proposed (for a total of 73 valid species). A parsimony analysis utilizing 62 morphological characters is used to infer phylogenetic relationships among all 73 species, and suitable outgroups. Based on the results of the phylogenetic analysis, the tribal and/or generic assignments of 55 (75%) of former Periclystina species are modified here. Periclystina and its two largest genera—Austrogymnocnemia and Glenoleon—were all recovered as polyphyletic in their former circumscriptions. Ten species—placed here in six genera: Anomaloplectron, Csiroleon, Fissuleon gen. nov., Franzenia, Fusoleon and Latileon gen. nov.—clustered phylogenetically with Acanthoplectron and are transferred to the tribe Acanthoplectrini. The remaining 63 species—placed in six additional genera: Austrogymnocnemia, Glenoleon, Megagonoleon gen. nov., Minyleon gen. nov., Periclystus and Riekoleon—form a monophyletic Periclystus genus group and are transferred to the tribe Dendroleontini. All 73 species are (re)described and illustrated. New identification keys are provided for the tribes of Dendroleontinae, for the Australian genera of Acanthoplectrini and Dendroleontini, and for each of the non-monotypic genera treated. In addition, five new lectotypes are designated and 35 new combinations are created. 

Phylogeny and revised classification of the tribe Elachipterini (Diptera: Chloropidae)

Zootaxa ◽  
2018 ◽  
Vol 4471 (1) ◽  
pp. 1
Author(s):  
JULIA J. MLYNAREK ◽  
TERRY A. WHEELER
Keyword(s):  
Phylogenetic Relationships ◽  
Type Species ◽  
Cladistic Analysis ◽  
Morphological Characters ◽  
New Combinations ◽  
Old World ◽  
Neotropical Species ◽  
Valid Genus ◽  
Outgroup Species

The phylogenetic relationships of the chloropid tribe Elachipterini were analysed. Sixty-eight exemplar species and seven outgroup species were included in a cladistic analysis based on 76 morphological characters of adult specimens in order to test existing, non-phylogenetic, classifications of the tribe. Nine genera are recognized in the Elachipterini: Allomedeia Mlynarek & Wheeler, Alombus Becker, Anatrichus Loew, Ceratobarys Coquillett, Disciphus Becker, Elachiptera Macquart, Goniaspis Duda, Melanochaeta Bezzi and Sepsidoscinis Hendel. Myrmecosepsis Kertesz is synonymised with Anatrichus, and Togeciphus Nishijima and Cyrtomomyia Becker are synonymised with Elachiptera. Ceratobarys is removed from synonymy with Elachiptera and all Neotropical species and two Nearctic species previously assigned to Elachiptera are transferred to Ceratobarys. Melanochaeta is a valid genus; the type species Melanochaeta capreolus clusters with other species of Melanochaeta and not Oscinella. New combinations include Anatrichus hystrix (Kertesz, 1914) (Myrmecosepsis); Anatrichus taprobane (Andersson, 1977) (Myrmecosepsis), Ceratobarys attenuata (Adams, 1908) (Elachiptera); Ceratobarys cultrata (Wheeler & Forrest, 2002) (Elachiptera); Ceratobarys flavida (Williston, 1896) (Elachiptera); Ceratobarys melinifrons (Mlynarek & Wheeler, 2008) (Elachiptera); Ceratobarys fucosa (Mlynarek & Wheeler, 2008) (Elachiptera); Ceratobarys queposana (Mlynarek & Wheeler, 2008) (Elachiptera); Ceratobarys rubida (Becker, 1912) (Elachiptera); Ceratobarys sacculicornis (Enderlein, 1911) (Elachiptera); Ceratobarys willistoni (Sabrosky, 1948)  (Elachiptera), Elachiptera ensifer (Sabrosky, 1951) (Cyrtomomyia); Elachiptera ericius (Kanmiya, 1983) (Togeciphus); Elachiptera katoi (Nishijima, 1955) (Togeciphus); Elachiptera maculinervis (Becker, 1910) (Cyrtomomyia); Elachiptera punctulata (Becker, 1912) (Cyrtomomyia); Elachiptera subelongata (Kanmiya, 1983) (Disciphus); Elachiptera truncatus (Liu & Yang, 2012) (Togeciphus); Elachiptera tuberculata (Adams, 1905) (Cyrtomomyia) and all the species that were placed in Lasiochaeta are returned to Melanochaeta. A key to genera of the tribe Elachipterini is provided and diagnoses are provided for all genera. The tribe is divided into two geographically distinct clades: the Anatrichus clade includes the Old World tropical genera Allomedeia, Alombus, Anatrichus, Disciphus and Sepsidoscinis; the Elachiptera clade includes the primarily Neotropical genera Goniaspis and Ceratobarys and the widespread, but primarily Holarctic, genera Elachiptera and Melanochaeta. 

Readjustment of the Standard ASUDAS to Encompass Dental Morphological Variations in Plio-Pleistocene Hominins

2018 ◽  
Vol 30 (1-2) ◽  
pp. 32-48
Author(s):  
M. Louail ◽  
S. Prat
Keyword(s):  
Phylogenetic Relationships ◽  
Homo Sapiens ◽  
Initial Study ◽  
Morphological Characters ◽  
State University ◽  
Arizona State University ◽  
Dental Anthropology ◽  
Morphological Variations ◽  
Fossil Hominins ◽  
Fossil Hominin

The standard ASUDAS scoring system (Arizona State University Dental Anthropology System) is used to assess dental morphological variations in modern humans. It is also frequently used to study, score, and compare morphological variations in fossil hominin taxa and to examine their phylogenetic relationships. However, using ASUDAS in studies of this type is under debate because it is based on modern Homo sapiens populations and does not appear to cover all variations observed in fossil Plio-Pleistocene homi- nins. Our observations and coding of 178 dentals casts of Plio-Pleistocene specimens based on ASUDAS and from the literature have confirmed the need to adapt the standard system to fossil hominins. In this initial study, we propose that the scoring procedures for some morphological characters need to be readjusted, while others could be standardized following the ASUDAS system.

New combinations in Struthiopteris spicant for the European flora

Phytotaxa ◽  
2017 ◽  
Vol 302 (2) ◽  
pp. 198 ◽  
Author(s):  
PAWEL WASOWICZ ◽  
JOSE MARIA GABRIEL Y GALAN ◽  
RUBEN PINO PEREZ
Keyword(s):  
Morphological Characters ◽  
New Combinations ◽  
Phylogenetic Relation ◽  
Molecular Studies ◽  
Long Time

Delimitation of genera in Blechnaceae Newman (1844: 8), a subcosmopolitan fern family with ca. 250 species, has remained uncertain for a long time. During the last decade, evidence has been accumulating about the polyphyletism within Blechnum Linnaeus (1753: 1077) (e.g. Shepherd et al. 2007, Rothfels et al. 2012, Gabriel y Galán et al. 2013, Perrie et al. 2014). Recent molecular studies (Gasper et al. 2016a) lead to an updated classification attempting to put morphological characters into a natural, phylogenetic relation (Gasper et al. 2016b). Because of these changes, the species most people associate with the genus Blechnum, B. spicant (Linnaeus 1753: 1066) Roth (1794: 56), is now treated under Struthiopteris Scopoli (1754: 25).

Phylogenetic analysis of the subfamily Hylodinae (Anura, Leptodactylidae) based on morphological characters

2005 ◽  
Vol 26 (2) ◽  
pp. 139-147 ◽  
Author(s):  
Francisca do Val ◽  
Paulo Nuin
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Relationships ◽  
Maximum Parsimony ◽  
Morphological Characters ◽  
The Other ◽  
The Family

AbstractThe systematics and phylogenetic relationships of the family Leptodactylidae are controversial as is the intrafamilial phylogeny of the leptodactylids. Here we analyze the relationships of the leptodactylid subfamily Hylodinae. This subfamily has been considered to be monophyletic and composed of three genera, Hylodes, Crossodactylus and Megaelosia. In the present study 49 characters were used, based on different studies on Leptodactylidae phylogeny. Maximum parsimony methods with unweighted and successively weighted characters were used to estimate the phylogeny of the Hylodinae. Upon analysis, the data provided further evidence of the monophyletic status of the three genera, with Megaelosia being the basal genus and the other two genera being sister taxa. The analysis with successive weighting results in a more resolved topology of the species subgroups of the genus Hylodes and separates this genus from Crossodactylus and confirms that the hylodines are monophyletic.

Revised circumscription of Nothofagus and recognition of the segregate genera Fuscospora, Lophozonia, and Trisyngyne (Nothofagaceae)

Phytotaxa ◽  
2013 ◽  
Vol 146 (1) ◽  
pp. 1 ◽  
Author(s):  
PETER B. HEENAN ◽  
ROB D. SMISSEN
Keyword(s):  
Phylogenetic Analysis ◽  
South America ◽  
Papua New Guinea ◽  
New Genus ◽  
New Caledonia ◽  
Sequence Data ◽  
Morphological Characters ◽  
New Combinations ◽  
Southern South America ◽  
Dna Sequence Data

The generic taxonomy of the Nothofagaceae is revised. We present a new phylogenetic analysis of morphological characters and map these characters onto a recently published phylogenetic tree obtained from DNA sequence data. Results of these and previous analyses strongly support the monophyly of four clades of Nothofagaceae that are currently treated as subgenera of Nothofagus. The four clades of Nothofagaceae are robust and well-supported, with deep stem divergences, have evolutionary equivalence with other genera of Fagales, and can be circumscribed with morphological characters. We argue that these morphological and molecular differences are sufficient for the four clades of Nothofagaceae to be recognised at the primary rank of genus, and that this classification will be more informative and efficient than the currently circumscribed Nothofagus with four subgenera.        Nothofagus is recircumscribed to include five species from southern South America, Lophozonia and Trisyngyne are reinstated, and the new genus Fuscospora is described. Fuscospora and Lophozonia, with six and seven species respectively, occur in New Zealand, southern South America and Australia. Trisyngyne comprises 25 species from New Caledonia, Papua New Guinea and Indonesia. New combinations are provided where necessary in each of these genera.

A revision of Rhaponticoides (Asteraceae, Cardueae–Centaureinae) from Iran

Phytotaxa ◽  
2015 ◽  
Vol 213 (2) ◽  
pp. 87 ◽  
Author(s):  
Kazem Negaresh ◽  
SAYED MOHAMMAD REZA KHOSHROO ◽  
ROYA KARAMIAN ◽  
MOHAMMAD REZA JOHARCHI
Keyword(s):  
Geographical Distribution ◽  
Morphological Characters ◽  
Identification Key ◽  
Full Description ◽  
New Combinations ◽  
Taxonomic Review ◽  
Herbarium Collections ◽  
First Time

A taxonomic review of Rhaponticoides in Iran is based on morphological characters of the specimens from the authors’ expeditions and other herbarium collections. Rhaponticoides lachnopus, R. schmidii, R. sect. Iranicae and R. sect. Ruthenicae are proposed as new combinations. Full description for the genus Rhaponticoides and R. sect. Iranicae and R. sect. Ruthenicae are presented for the first time here. Three names, R. lachnopus, R. ruthenica and its synonym, are typified. A synopsis with recognized sections and species, relevant synonyms, type citations, lists of specimens examined and an identification key are provided for the genus Rhaponticoides in Iran. In addition, some notes about ecology and habitat of Rhaponticoides especially in Iran are given. Finally, the geographical distribution of all the 4 species recognized in Iran is presented and mapped.

Phylogenetic relationships between the genera Aphidius and Lysaphidus (Hymenoptera: Braconidae: Aphidiinae) with description of Aphidius iranicus sp. nov.

2007 ◽  
Vol 139 (3) ◽  
pp. 297-307 ◽  
Author(s):  
Željko Tomanović ◽  
Ehsan Rakhshani ◽  
Petr Starý ◽  
Nickolas G. Kavallieratos ◽  
Ljubiša Ž. Stanisavljević ◽  
...  
Keyword(s):  
Phylogenetic Relationships ◽  
Morphological Characters ◽  
Taxonomic Position ◽  
Parsimony Analysis ◽  
Parasitoid Species ◽  
Consensus Tree ◽  
Artemisia Absinthium ◽  
Diagnostic Characters ◽  
Line Drawings ◽  
Generic Status

AbstractWe analyzed the phylogenetic relationships between eight Aphidius Nees and six Lysaphidus Smith species on the basis of 12 morphological characters by parsimony analysis. The consensus tree does not support the generic status of Lysaphidus. Aphidius iranicus, sp. nov., associated with Titanosiphon bellicosum Nevsky on Artemisia absinthium L. from Iran, is described. The new parasitoid species is described and illustrated by line drawings, and its diagnostic characters are discussed. The taxonomic position of the subgenus Tremblayia Tizado and Núñez-Pérez is also considered. Tremblayia and Lysaphidus are newly classified as synonyms of Aphidius. The following new or revised combinations are proposed: Aphidius adelocarinus Smith, comb. rev., A. ramythirus Smith, comb. rev., A. rosaphidis Smith, comb. rev., A. viaticus (Sedlag), comb. nov., A. arvensis (Starý), comb. nov., and A. erysimi (Starý), comb. nov.

Sinalliaria, a new genus of Brassicaceae from eastern China, based on morphological and molecular data

Phytotaxa ◽  
2014 ◽  
Vol 186 (4) ◽  
pp. 188 ◽  
Author(s):  
Ying-Ying Zhou ◽  
HONG-WEI ZHANG ◽  
JIANG-QIN HU ◽  
Xiao-Feng Jin
Keyword(s):  
Dna Sequences ◽  
New Genus ◽  
Eastern China ◽  
Distinct Group ◽  
Morphological Characters ◽  
Molecular Data ◽  
New Combinations ◽  
The Family ◽  
Morphological And Molecular Data ◽  
Seed Testa

Sinalliaria is described here as a new genus of the family Brassicaceae from eastern China, based on the morphological characters and molecular sequences. Sinalliaria differs from the related genus Orychophragmus in having basal leaves petiolate, simple or rarely with 1‒3 lateral lobes (not pinnatisect); cauline leaves petiolate, cordate at base (not sessile, auriculate or amplexicaul at base); petals obovate to narrowly obovate, claw inconspicuous (not broadly obovate, with a claw as along as sepal); siliques truncate (not long-beaked) at apex. The microscopic characters of seed testa also show significant differences between Sinalliaria and Orychophragmus. Phylogenetic evidence from DNA sequences of nuclear ribosomal ITS and plastid region trnL-trnF indicates that Sinalliaria is a distinct group related to Orychophragmus and Raphanus, but these three genera do not form a clade. The new genus Sinalliaria is endemic to eastern China and has only one species and one variety. The new combinations, S. limprichtiana (Pax) X. F. Jin, Y. Y. Zhou & H. W. Zhang and S. limprichtiana var. grandifolia (Z. X. An) X. F. Jin, Y. Y. Zhou & H. W. Zhang are proposed here.

Phylogeny of Palaearctic Pharyngodonidae parasite species of Testudinidae: a morphological approach

2003 ◽  
Vol 81 (11) ◽  
pp. 1885-1893 ◽  
Author(s):  
Salah Bouamer ◽  
Serge Morand
Keyword(s):  
Phylogenetic Relationships ◽  
Type Species ◽  
Parasite Species ◽  
Morphological Characters ◽  
Monophyletic Group ◽  
Ancestral State ◽  
Morphological Approach ◽  
Species Descriptions

The phylogenetic relationships of 23 oxyurid species from five genera (21 parasite species of the Palaearctic Testudinidae, 1 parasite species of Uromastix acanthinurus Bell, 1825 from Algeria, and 1 parasite species of Cteno sa ura pectinata (Wiegmann, 1834) from Mexico) were investigated using 30 morphological characters obtained from species descriptions. The nonweighted analysis produced one shortest tree. All species of the ingroup form a monophyletic group and the oxyurid species of Testudinidae form a monophyletic group. The type species of the genus Alaeuris Thapar, 1925 is the basal member of the species parasitizing Testudinidae. The analysis confirms the monophyly of the genus Thaparia Ortlepp, 1933, whereas the genera Mehdiella Seurat, 1918 and Tachygonetria Wedl, 1862 are considered paraphyletic groups. The large diversification in the genus Tachygonetria is linked to their position in the host caecum. The ancestral state is in the paramucous and the derived state is in the centre of the caecum. This suggests that recent speciation in the group occurs in the centre of the caecum.

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