scholarly journals Total evidence phylogeny of Pontederiaceae (Commelinales) sheds light on the necessity of its recircumscription and synopsis of Pontederia L.

PhytoKeys ◽  
2018 ◽  
Vol 108 ◽  
pp. 25-83 ◽  
Author(s):  
Marco O. O. Pellegrini ◽  
Charles N. Horn ◽  
Rafael F. Almeida

A total evidence phylogeny for Pontederiaceae is herein presented based on new morphological and previously published molecular data. Our results led us to re-circumscribe Pontederia to include Monochoria, Pontederias.s. and the polyphyletic Eichhornia. We provide the needed ten new combinations and 16 typifications, arrange a total of 25 accepted species (six representing re-established names) in 5 new subgenera. Furthermore, we provide an identification key for the two genera accepted by us in Pontederiaceae, an identification key to the subgenera, identification keys to the species of each subgenus and commentaries on Pontederias.l., as well as for each subgenus and each species.

2015 ◽  
Vol 28 (6) ◽  
pp. 265 ◽  
Author(s):  
Carolyn F. Wilkins ◽  
Barbara A. Whitlock

Seringia J.Gay and Keraudrenia J.Gay are widely spread in Australia, and one species occurs in Madagascar. Revision of these closely related genera suggested that neither genus is monophyletic on the basis of morphological or preliminary molecular data. As a result, Keraudrenia is subsumed into Seringia. There are now 20 species of Seringia, including the currently accepted type species Seringia platyphylla J.Gay (=Seringia arborescens (W.T.Aiton) Druce). Five new species S. adenogyna C.F.Wilkins, S. cacaobrunnea C.F.Wilkins, S. elliptica C.F.Wilkins, S. undulata C.F.Wilkins and S. saxatilis C.F.Wilkins are described. Four species of Keraudrenia initially described as Seringia and recognised as the latter by F. J. H. von Mueller are reinstated (S. adenolasia F.Muell., S. corollata Steetz, S. lanceolata Steetz, S. nephrosperma F.Muell.). Five previous combinations of Keraudrenia and Seringia as Seringia are recognised (S. hermanniifolia (J.Gay) F.Muell., S. hillii (Benth.) F.Muell., S. hookeriana (Walp.) F.Muell., S. integrifolia (Steud.) F.Muell., S. velutina (Steetz) F.Muell.) and five new combinations are made (S. collina (Domin) C.F.Wilkins & Whitlock, S. denticulata (C.T.White) C.F.Wilkins & Whitlock, S. exastia (C.F.Wilkins) C.F.Wilkins & Whitlock, S. katatona (C.F.Wilkins) C.F.Wilkins & Whitlock, S. macrantha (Baill.) C.F.Wilkins & Whitlock. Keraudrenia collina var. multiflora Domin is placed in synonymy under S. nephrosperma F.Muell. Keraudrenia corollata var. denticulata C.T.White is recognised as a distinct species, S. denticulata (C.T.White) C.F.Wilkins & Whitlock. Anatomical studies, taxonomic descriptions, distribution maps, illustrations and identification keys are presented for Seringia, and an identification key to genera of the tribe Lasiopetaleae is provided.


2013 ◽  
Vol 38 ◽  
pp. 229-231
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.


2013 ◽  
Vol 38 ◽  
pp. 231-240 ◽  
Author(s):  
María Talavera Solís ◽  
Carlos Sánchez Casimiro-Soriguer ◽  
Salvador Talavera Lozano

Crepis sect. Lepidoseris sensu Babcock in the Iberian Peninsula and Balearic Islands. Palabras clave. Clave de identificación, nomenclatura, tipificación, distribución, Crepis bermejana sp. nov., combinaciones nuevas. Key words. Identification key, nomenclature, chorology, typification, Crepis bermejana sp. nov., new combinations.


Nematology ◽  
2013 ◽  
Vol 15 (2) ◽  
pp. 165-178 ◽  
Author(s):  
Sergio Álvarez-Ortega ◽  
Sergei A. Subbotin ◽  
Reyes Peña-Santiago

This contribution presents a study of Iberian and Californian populations of Aporcelaimellus simplex, including morphological, morphometric and molecular data. The species is characterised and distinguished by its lip region offset by an expansion, pars refringens vaginae absent, and conical tail with a small but distinct hyaline terminal portion. No significant difference exists between American and European populations. Molecular data and the derived evolutionary tree show a topology in which this species forms a well-supported group with members of Discolaiminae, far from other representatives of Aporcelaimellus. Putting special emphasis in the absence of pars refringens vaginae, A. simplex is transferred to the genus Aporcella. The taxonomy of this genus is revised in depth, with the proposal of an emended diagnosis, the provision of a list of 13 valid species (mostly new combinations from Aporcelaimellus) as well as a key to their identification and a compendium of their main morphometrics. Aporcella debruinae sp. n. is proposed for Aporcelaimellus papillatus apud de Bruin & Heyns, 1992.


Phytotaxa ◽  
2015 ◽  
Vol 213 (2) ◽  
pp. 87 ◽  
Author(s):  
Kazem Negaresh ◽  
SAYED MOHAMMAD REZA KHOSHROO ◽  
ROYA KARAMIAN ◽  
MOHAMMAD REZA JOHARCHI

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.


Phytotaxa ◽  
2014 ◽  
Vol 186 (4) ◽  
pp. 188 ◽  
Author(s):  
Ying-Ying Zhou ◽  
HONG-WEI ZHANG ◽  
JIANG-QIN HU ◽  
Xiao-Feng Jin

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.


2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Enrico Banfi

Elymus s. l. is a critical topic on which only a little light has begun to be made regarding phylogenetic reticulation, genome evolution and consistency of genera. In Italy, Elymus s. l. officially includes ten species (nine native, one alien) and some well-established and widespread hybrids generally not treated as little or nothing is known of them. In this paper fourteen species (with two subspecies) and six hybrids are taken into account and the following seven new combinations are proposed: Thinopyrum acutum (DC.) Banfi, Thinopyrum corsicum (Hack.) Banfi, Thinopyrum intermedium (Host) Barkworth and Dewey subsp. pouzolzii (Godr.) Banfi, Thinopyrum obtusiflorum (DC.) Banfi, Thinopyrum ×duvalii (Loret) Banfi, ×Thinoelymus drucei (Stace) Banfi, ×Thinoelymus mucronatus (Opiz) Banfi. Some observations are provided for each subject and a key to species, subspecies and hybrids is made available.


Phytotaxa ◽  
2014 ◽  
Vol 178 (3) ◽  
pp. 225 ◽  
Author(s):  
Shi-Yong Dong

Based on recent molecular data and morphology, here I propose eight new combinations and five new names to accommodate the species of Heterogonium in Tectaria.


2021 ◽  
Author(s):  
Renato Lúcio Mendes Alvarenga ◽  
Tatiana Baptista Gibertoni

Abstract Dacrymycetes has four families and 13 genera, few of them with molecular data available and then usually polyphyletic in phylogenetic analyses. Dacrymyces Nees is one of the polyphyletic genera in Dacrymycetes and it was introduced to accommodate one species, D. stillatus Nees. The morphological features of the genus are a homogeneous composition of the intra-structure and an amphigenous or superior hymenium. In this study, we included Neotropical specimens in the phylogeny of the Dacrymycetes and Dacrymyces s.s. is emended to include species with resupinate basidiomata, unilateral hymenium and heterogeneous context. In this new delimitation, the new species Dacrymyces flavobrunneus is described using morphological and molecular data and three new combinations (D. ceraceus comb. nov., D. maxidorii comb. nov. and D. spathularia comb. nov.) are proposed based on DNA analyses.


2019 ◽  
Vol 187 (1) ◽  
pp. 166-197 ◽  
Author(s):  
Adam James Brunke ◽  
Dagmara Żyła ◽  
Shûhei Yamamoto ◽  
Alexey Solodovnikov

Abstract Cenozoic climate cooling, particularly during the Eocene, has drastically shaped modern biological assemblages through a shift from an equable greenhouse to a polarized icehouse. Present-day Europe lies in a highly seasonal and temperate area that strongly embodies this modern icehouse climate. Baltic amber provides a Middle Eocene snapshot of the European fauna before this large-scale change. Here, we focused on the rove beetle tribe Staphylinini and conducted a comprehensive phylogenetic study of all known Baltic amber fossils in a total-evidence phylogenetic framework that integrates morphology with molecular data from six gene fragments. Based on our well-resolved topology, we propose the following: †Baltognathina subtrib. nov., Afroquediina subtrib. nov., Antimerina subtrib. nov., †Baltognathus aenigmaticus gen. et sp. nov., †Eolophorus gen. nov., †Laevisaurus robustus and †Laevisaurus gracilis gen. et spp. nov., †Hemiquedius europaeus sp. nov. and †Bolitogyrus fragmentus sp. nov. †Quedius cretaceus is placed as junior synonym of †Cretoquedius infractus. The earliest definitive fossils of Quediina are reported herein from the Eocene. The Staphylinini fauna of Middle Eocene Europe combined thermophilic, freeze-intolerant lineages with freeze-tolerant, temperate lineages and, unlike most other staphylinid or beetle lineages, all have since become extinct in the Palaearctic region.


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