scholarly journals Recognition of the genus Thaumatophyllum Schott − formerly Philodendron subg. Meconostigma (Araceae) − based on molecular and morphological evidence

PhytoKeys ◽  
2018 ◽  
Vol 98 ◽  
pp. 51-71 ◽  
Author(s):  
Cassia Mônica Sakuragui ◽  
Luana Silva Braucks Calazans ◽  
Leticia Loss de Oliveira ◽  
Érica Barroso de Morais ◽  
Ana Maria Benko-Iseppon ◽  
...  
Keyword(s):  
Geographical Distribution ◽  
Morphological Characters ◽  
Morphological Evidence ◽  
New Combinations ◽  
Cytological Evidence ◽  
Distinct Genus

PhilodendronsubgenusMeconostigma has been a well-circumscribed group since 1829. Members of this group are easily distinguished by diagnostic morphological characters as well as by a distinct ecology and geographical distribution. Based on molecular, morphological and cytological evidence, we propose the recognition of P.subg.Meconostigma as a distinct genus, Thaumatophyllum Schott. We also present the necessary new combinations, an emended key and some nomenclatural and taxonomic corrections regarding 21 names of Thaumatophyllum.

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.

scholarly journals A synopsis of the Asian and Australasian genus Phanera Lour. (Cercideae: Caesalpinioideae: Leguminosae) including 19 new combinations

Phytotaxa ◽  
2014 ◽  
Vol 166 (1) ◽  
pp. 49 ◽  
Author(s):  
BARBARA ANNE MACKINDER ◽  
RUTH CLARK
Keyword(s):  
New World ◽  
Morphological Characters ◽  
Morphological Evidence ◽  
New Combinations ◽  
Generic Rank

Historically, many authors of regional accounts of the Leguminosae (Fabaceae) tribe Cercideae divided the caesalpinioid genus Bauhinia sens. lat. into several segregate genera including the genus Phanera. However, during the last fifty years, Bauhinia has more often been recognised as a broadly circumscribed taxon with Phanera reduced to a subgenus of Bauhinia sens. lat. The reinstatement of Phanera at generic rank based on molecular and morphological evidence has now been widely accepted, resulting in the need for new combinations in Phanera for many taxa described in Bauhinia. Some of those names have been published recently by other authors so here we make the necessary combinations for those taxa still lacking names in Phanera. In addition, we include all published Phanera binomials and trinomials here and to each assign a status of accepted name, synonym or excluded name. The recent reinstatement of the New World genus Schnella to which c. 40 Phanera species were moved transforms Phanera into a strictly Asian and Australasian taxon. Phanera can be distinguished from Bauhinia sens. str. and from Schnella by a combination of morphological characters, but the morphological boundary with another closely related Asiatic genus, Lasiobema is unclear and warrants further investigation. We present a table comparing morphological characters of Phanera, Schnella, Lasiobema and Bauhinia sens. str.

Cytological identities of Simulium tuberosum and S. vulgare (Diptera: Simuliidae), with notes on other Palearctic members of the S. tuberosum species-group

1994 ◽  
Vol 25 (4) ◽  
pp. 439-446 ◽  
Author(s):  
Kalevi Kuusela ◽  
Peter H. Adler
Keyword(s):  
North America ◽  
Distinct Species ◽  
Morphological Characters ◽  
Species Group ◽  
Unique Sequence ◽  
Close Relative ◽  
Morphological Evidence ◽  
Cytological Evidence ◽  
Distal Half ◽  
Isolated Species

AbstractCytological studies of Simulium tuberosum s.l. from the type locality in northern Finland demonstrate the presence of three reproductively isolated species. One of these species, here designated FGIO, has not previously been described cytologically, whereas the remaining two cytospecies, AB and FGI, are both well known from North America and Norway. FGIO differs from its close relative, FGI, by one fixed inversion in IIS, one in IIL, and a unique sequence in the distal half of IIIL. Morphological characters of the larvae corroborate the cytological evidence for three distinct species. On the basis of morphological evidence, we suggest that AB is true S. tuberosum (Lundström) and FGI is S. vulgare Dorogostaisky, Rubtsov & Vlasenko. The identity of FGIO remains unknown, although it might be S. tumulosum Rubtsov. Morphological and chromosomal notes on S. tuberosum s.l. from Germany and England are also given; we suggest that the species known from England as S. tuberosum is actually unnamed. Overall, our study provides a blueprint for dealing with nominal taxa that are shown to be composites of sibling species.

Taxonomic revision of Leandra sect. Leandra (Melastomataceae, Miconieae)

Phytotaxa ◽  
2016 ◽  
Vol 262 (1) ◽  
pp. 1 ◽  
Author(s):  
MARCELO REGINATO
Keyword(s):  
Geographical Distribution ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
New Combinations ◽  
Phylogenetic Hypothesis ◽  
General Morphology ◽  
Distribution Maps ◽  
History Of ◽  
First Time

A taxonomic monograph of a re-circumscribed Leandra sect. Leandra is presented. The new circumscription is based on a previous phylogenetic hypothesis, and diagnostic morphological characters are discussed. Four new combinations to Leandra are proposed, one from Clidemia (L. capilliflora) and three from Ossaea (L. capitata, L. cogniauxii and L. loligomorpha). Additionally, eight species are treated as synonyms for the first time, and 15 lectotypes are designated. A review of the 17 recognized species, including descriptions, synonymy, illustrations and distribution maps, is provided. This work also includes an overview of general morphology, leaf and flower anatomy, phenology and geographical distribution. Species with a history of taxonomic problems and/or with distinctive morphotypes are further investigated with morphometrics tools.

Diversification of the North American Doellingeria-Eucephalus Clade (Astereae: Asteraceae) Inferred from Molecular and Morphological Evidence

2019 ◽  
Vol 44 (4) ◽  
pp. 930-942
Author(s):  
Geraldine A. Allen ◽  
Luc Brouillet ◽  
John C. Semple ◽  
Heidi J. Guest ◽  
Robert Underhill
Keyword(s):  
North American ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
Sister Group ◽  
Morphological Evidence ◽  
South American ◽  
New Combinations ◽  
The North ◽  
Hybridization Event ◽  
Ancient Hybridization

Abstract—Doellingeria and Eucephalus form the earliest-diverging clade of the North American Astereae lineage. Phylogenetic analyses of both nuclear and plastid sequence data show that the Doellingeria-Eucephalus clade consists of two main subclades that differ from current circumscriptions of the two genera. Doellingeria is the sister group to E. elegans, and the Doellingeria + E. elegans subclade in turn is sister to the subclade containing all remaining species of Eucephalus. In the plastid phylogeny, the two subclades are deeply divergent, a pattern that is consistent with an ancient hybridization event involving ancestral species of the Doellingeria-Eucephalus clade and an ancestral taxon of a related North American or South American group. Divergence of the two Doellingeria-Eucephalus subclades may have occurred in association with northward migration from South American ancestors. We combine these two genera under the older of the two names, Doellingeria, and propose 12 new combinations (10 species and two varieties) for all species of Eucephalus.

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).

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.

Disentangling Astraea lobata: three new names in Astraea based on previous varieties of Croton lobatus (Euphorbiaceae)

Phytotaxa ◽  
2017 ◽  
Vol 317 (4) ◽  
pp. 297 ◽  
Author(s):  
OTÁVIO LUIS MARQUES DA SILVA ◽  
INÊS CORDEIRO
Keyword(s):  
Geographical Distribution ◽  
Geographic Distribution ◽  
Taxonomic Revision ◽  
Morphological Characters ◽  
Complex Species ◽  
Wide Geographical Distribution ◽  
As Species

Within Astraea Klotzsch (1841: 194), Astraea lobata (Linnaeus 1753: 1005) Klotzsch (1841: 194) may be considered the most taxonomically complex species due to its wide geographical distribution and the several varieties that have been proposed for this species by Müller Argoviensis (1866, 1874). In his concept, Müller Argoviensis (1866) united under Croton lobatus Linnaeus (1753: 1005) plants with 3–5-partite leaves almost as long as the petioles, subulate stipules, the bracts not well developed and ovaries with varied indumentum. In De Candolles’s Prodromus, Müller Argoviensis (1866) recognized eight varieties, maintaining this concept in the Flora Brasiliensis (Müller Argoviensis 1874) with few modifications. Morphological characters and geographical distribution support the recognition of some of these varieties as species distinct from A. lobata. As part of an undergoing taxonomic revision of Astraea, these distinct taxa must be validly published for further studies on this genus. Therefore, in this note we propose these novelties with commentaries about morphology and geographic distribution, along with photos to illustrate them and lectotypifications when necessary.

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.

Stachys Ahmet-Savranii DoğU and BAğCI (Lamiaceae), a New Species From South Anatolia, Turkey

2021 ◽  
Vol 50 (2) ◽  
pp. 319-326
Author(s):  
Süleyman Doğu ◽  
Yavuz Bağci
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Conservation Status ◽  
Morphological Characters ◽  
Calyx Tube ◽  
A New Species

Stachys ahmet-savranii Doğu & Bağcı sp. nov. (Lamiaceae) from the Niğde (C5 Niğde, Turkey) is described and illustrated. It exhibits general features of the section Infrarosularis. It is closely related to Stachys citrina Boiss. & Heldr. but differs by its slender and unbranched stem; leaves structure; floral leaves equalling or longer than verticillasters; verticillester with 8 - 12 flowered and corolla 10 - 18 mm; Bracteoles reaching nearly middle of calyx tube. Diagnostic morphological characters are discussed. The geographical distribution of the new species is mapped. Notes are also presented on its ecology, biogeography and conservation status. Bangladesh J. Bot. 50(2): 319-326, 2021 (June)

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