Nomenclatural notes on Laeliinae-V. New combinations for invalid names in Prosthechea (Orchidaceae)

Phytotaxa ◽  
2015 ◽  
Vol 239 (3) ◽  
pp. 297
Author(s):  
Cássio Van den Berg
Keyword(s):  
Central America ◽  
Phylogenetic Analyses ◽  
Nuclear Data ◽  
New Combinations ◽  
Extensive Discussion ◽  
The Third ◽  
Brazilian Species ◽  
Two Systems ◽  
Molecular Phylogenetic ◽  
Mexican Species

Prosthechea Knowles & Westcott (1838: 111) is the third largest genus of Laeliinae Bentham (1881: 287) with 117 species (Chase et al. 2015). The group of species corresponding to Prosthechea is widespread in the Neotropics, especially in Mexico, Central America and Brazil, and has been treated since the 60’s as distinct from Epidendrum Linnaeus (1763: 1347) but with contradictory generic placement. For example, Dressler & Pollard (1971, 1976) included most species in Encyclia subgenus Osmophytum (Lindley 1841: 81) Dressler & Pollard (1971: 433), but dealt only with Mexican species. Pabst & Dungs (1975, 1977) followed Dressler and treated the Brazilian species also in Encyclia Hooker (1828: t. 2831). Brieger (1960) considered them part of Hormidium (Lindley 1841: 81) Heynhold (1841: 880) and later Pabst et al. (1981) transferred most Brazilian species to Anacheilium Hoffmannsegg (1842: 229). Molecular phylogenetic analyses of plastid and nuclear data confirmed that the whole group was monophyletic (van den Berg et al. 2000, 2009, Higgins et al., 2003). After an extensive discussion on the generic names by Higgins (1997), he established that the oldest name for the whole clade was Prosthechea and proposed most of the new combinations for species previously included in Epidendrum, Encyclia, Anacheilium and Hormidium. Later on, other authors decided to subdivide the group into several segregate genera, and proposed two systems that are themselves conflicting in generic circumscription (Withner & Harding 2004, Chiron & Castro Neto 2003a).

scholarly journals Taxonomic revision of Russula subsection Amoeninae from South Korea

MycoKeys ◽  
2020 ◽  
Vol 75 ◽  
pp. 1-29
Author(s):  
Komsit Wisitrassameewong ◽  
Myung Soo Park ◽  
Hyun Lee ◽  
Aniket Ghosh ◽  
Kanad Das ◽  
...  
Keyword(s):  
New Species ◽  
South Korea ◽  
Central America ◽  
North American ◽  
Internal Transcribed Spacer ◽  
Phylogenetic Analyses ◽  
Taxonomic Revision ◽  
Molecular Phylogenetic ◽  
Pileus Surface ◽  
A New Species

Russula subsection Amoeninae is morphologically defined by a dry velvety pileus surface, a complete absence of cystidia with heteromorphous contents in all tissues, and spores without amyloid suprahilar spot. Thirty-four species within subsection Amoeninae have been published worldwide. Although most Russula species in South Korea have been assigned European or North American names, recent molecular studies have shown that Russula species from different continents are not conspecific. Therefore, the present study aims to: 1) define which species of Russula subsection Amoeninae occur on each continent using molecular phylogenetic analyses; 2) revise the taxonomy of Korean Amoeninae. The phylogenetic analyses using the internal transcribed spacer (ITS) and multilocus sequences showed that subsection Amoeninae is monophyletic within subgenus Heterophyllidiae section Heterophyllae. A total of 21 Russula subsection Amoeninae species were confirmed from Asia, Australia, Europe, North America, and Central America, and species from different continents formed separate clades. Three species were recognized from South Korea and were clearly separated from the European and North American species. These species are R. bella, also reported from Japan, a new species described herein, Russula orientipurpurea, and a new species undescribed due to insufficient material.

scholarly journals A new large-flowered species of Andeimalva (Malvaceae, Malvoideae) from Peru

PhytoKeys ◽  
2018 ◽  
Vol 110 ◽  
pp. 91-99 ◽  
Author(s):  
Laurence J. Dorr ◽  
Carolina Romero-Hernández ◽  
Kenneth J. Wurdack
Keyword(s):  
New Species ◽  
Sequence Data ◽  
Phylogenetic Analyses ◽  
High Elevation ◽  
Its Sequence ◽  
The Third ◽  
The Andes ◽  
Molecular Phylogenetic ◽  
Small Genus ◽  
Northern Species

Andeimalvaperuviana Dorr & C.Romero, sp. nov., the third Peruvian endemic in a small genus of five species, is described and illustrated from a single collection made at high elevation on the eastern slopes of the Andes. Molecular phylogenetic analyses of nuclear ribosomal ITS sequence data resolve a group of northern species of Andeimalva found in Bolivia and Peru from the morphologically very different southern A.chilensis. The new species bears the largest flowers of any Andeimalva and is compared with Bolivian A.mandonii. A revised key to the genus is presented.

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 The definitive rediscovery of Telmatobius halli (Anura, Telmatobiidae) at its historic type locality and its synonymy with T. dankoi and T. vilamensis

ZooKeys ◽  
2021 ◽  
Vol 1079 ◽  
pp. 1-33
Author(s):  
Jakob von Tschirnhaus ◽  
Claudio Correa
Keyword(s):  
High Altitude ◽  
Phylogenetic Analyses ◽  
Detailed Comparison ◽  
Type Locality ◽  
Phenotypic Differences ◽  
Type Series ◽  
The Third ◽  
Molecular Phylogenetic ◽  
External Characteristics

Telmatobius halli was the first representative of its genus to be described exclusively for Chile, yet for 85 years no new individuals could be located due to the vagueness with which its type locality was described. The type series was collected by one of the members of the International High Altitude Expedition to Chile (IHAEC) of 1935. Recently, three studies successively claimed to have located the type locality in different places. The third study proved, according to the chronicles of the IHAEC, that the actual locality is Miño, at the origin of the Loa River, where currently there are no published records of Telmatobius. In this study, additional documentary antecedents and graphic material are provided that corroborate that Miño is indeed the type locality of T. halli. Additionally, the recently rediscovered Telmatobius population from Miño and the environment it inhabits are described. The external characteristics of the frogs are consistent with the description of T. halli. Furthermore, molecular phylogenetic analyses were performed that showed that T. halli, T. dankoi, and T. vilamensis, all known only from their type localities in Chile, comprise a clade without internal resolution. A detailed comparison of the diagnoses of the three species revealed that the few phenotypic differences between these taxa were based on characteristics that vary widely within and between populations of the genus, hence their conspecificity is proposed. The implications of this synonymy for the taxonomy, biogeography, and conservation of the Telmatobius from the extreme south of its distribution in Chile are discussed.

Reticulate evolution in the parasitic genus Cuscuta (Convolvulaceae): over and over againThis paper is one of a selection of papers published in the Special Issue on Systematics Research.

Botany ◽  
2008 ◽  
Vol 86 (8) ◽  
pp. 791-808 ◽  
Author(s):  
Saša Stefanović ◽  
Mihai Costea
Keyword(s):  
Statistical Tests ◽  
Phylogenetic Analyses ◽  
Nuclear Data ◽  
Reticulate Evolution ◽  
Hybrid Origin ◽  
Closely Related Species ◽  
New Mexican ◽  
Molecular Phylogenetic ◽  
Present Distribution ◽  
Selection Of

The frequency and relative importance of hybridization in plants has been an area of intense debate. Although this evolutionary phenomenon has received considerable attention from plant biologists, there are no well-supported cases of reticulate evolution involving parasitic plants, to date. Recent molecular phylogenetic analyses revealed that the subgenus Grammica , the largest and most diverse group of the stem-parasitic genus Cuscuta (dodder), consists of 15 major clades. We describe here five cases of strongly supported discordance between phylogenies derived from plastid and nuclear data, and interpret them as results of five independent hybridization events. Three of these cases could represent relatively recent reticulations, as each of them involves more closely related species, always confined within the same major clade as their putative parental species, and are currently sympatric or parapatric with them. The two remaining cases involve species whose potential progenitors are derived from different major groups of Grammica, and which are allopatric in their present distribution. A series of statistical tests was conducted to assess and further explore the significance of this phylogenetic incongruence. Alternative explanations for discordant gene topologies are explored. Cuscuta liliputana sp. nov., a new Mexican species of hybrid origin is described.

Phylogenetic Classification of Subtribe Castillejinae (Orobanchaceae)

2009 ◽  
Vol 34 (1) ◽  
pp. 182-197 ◽  
Author(s):  
David C. Tank ◽  
J. Mark Egger ◽  
Richard G. Olmstead
Keyword(s):  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Systematic Research ◽  
New Combinations ◽  
Phylogenetic Hypothesis ◽  
Molecular Systematic ◽  
Genus Level ◽  
Formal Classification ◽  
Molecular Phylogenetic

Recent molecular systematic research has indicated the need for a revised circumscription of generic boundaries in subtribe Castillejinae (tribe Pedicularideae, Orobanchaceae). Based on a well-resolved and well-supported phylogenetic hypothesis, we present a formal reclassification of the major lineages comprising the Castillejinae. Prior to this treatment, subtribe Castillejinae included Castilleja (ca. 190 spp.), Cordylanthus (18 spp.), Orthocarpus (9 spp.), Triphysaria (5 spp.), and the monotypic genera Clevelandia and Ophiocephalus. In the classification presented here, Orthocarpus and Triphysaria retain their current circumscriptions, Castilleja is expanded to include Clevelandia and Ophiocephalus, and Cordylanthus is split into three genera; a key to the genera as they are recognized here is provided. Two new combinations, Castilleja beldingii and Castilleja ophiocephala, are proposed within the expanded Castilleja. The concept of Cordylanthus is restricted to the 13 species formerly recognized as subg. Cordylanthus, while subg. Dicranostegia and subg. Hemistegia are elevated to genus level (Dicranostegia and Chloropyron, respectively). We resurrect the generic name Chloropyron for the halophytes previously recognized as subg. Hemistegia. Five new combinations are proposed for Chloropyron (Chloropyron maritimum subsp. canescens, Chloropyron maritimum subsp. palustre, Chloropyron molle subsp. hispidum, Chloropyron palmatum, and Chloropyron tecopense). In addition to the formal classification, we provide phylogenetic clade definitions for Castillejinae, each of the genera, and two additional clades that are not assigned formal ranks. Morphological characteristics used to recognize traditional groups are evaluated, and synapomorphies are discussed. Finally, the current infrageneric classifications for Castilleja and Cordylanthus are evaluated in light of the recent molecular phylogenetic analyses.

New taxonomic combinations in West Indian Ocean Vanguerieae (Rubiaceae)

Phytotaxa ◽  
2016 ◽  
Vol 282 (4) ◽  
pp. 267 ◽  
Author(s):  
KENT KAINULAINEN ◽  
SYLVAIN G. RAZAFIMANDIMBISON
Keyword(s):  
Indian Ocean ◽  
Phylogenetic Analyses ◽  
West Indian ◽  
New Combinations ◽  
Morphological Studies ◽  
Molecular Phylogenetic ◽  
West Indian Ocean

This paper provides new combinations for two species endemic to the Seychelles, Canthium carinatum and C. sechellarum, which are transferred to Peponidium (tribe Vanguerieae, Ixoroideae, Rubiaceae), as supported by recent molecular phylogenetic analyses. Several new combinations in Vanguerieae from Madagascar are also proposed, based on morphological studies. Canthium bakerianum and C. homolleanum are transferred to Peponidium, whereas C. andringitrense, C. mandrarense, and Peponidium montana are transferred to Pyrostria. The names Pyrostria angustifolia, P. media, and P. major, previously invalid, are here validly published.

scholarly journals A molecular perspective on generic concepts in the Hypotrachyna clade (Parmeliaceae, Ascomycota)

Phytotaxa ◽  
2013 ◽  
Vol 132 (1) ◽  
pp. 21 ◽  
Author(s):  
PRADEEP K. DIVAKAR ◽  
ANA CRESPO ◽  
JANO NÚÑEZ-ZAPATA ◽  
ADAM FLAKUS ◽  
HARRIE J.M. SIPMAN ◽  
...  
Keyword(s):  
Molecular Phylogeny ◽  
Phylogenetic Analyses ◽  
Ssu Rdna ◽  
New Combinations ◽  
Generic Delimitation ◽  
Rdna Sequences ◽  
Phylogenetic Studies ◽  
Molecular Phylogenetic ◽  
Alternative Hypotheses ◽  
Nuclear Its

Recently, molecular phylogenetic studies have revolutionized the generic concepts in Parmeliaceae and in lichen forming fungi in general. In the present study, the generic delimitation in the Hypotrachyna clade is revised using a molecular phylogeny of nuclear ITS, LSU and mitochondrial SSU rDNA sequences of 88 hypotrachynoid taxa. Morphological and chemical features are also revised in each group. 118 sequences are newly generated for this study. Our phylogenetic analyses show the polyphyly of Hypotrachyna as currently circumscribed which falls into four well-supported and one unsupported clade. Cetrariastrum, Everniastrum and Parmelinopsis are nested within Hypotrachyna s. lat., Parmelinopsis being also polyphyletic and nested in one of the Hypotrachyna clades. Cetrariastrum is monophyletic but clustered within Everniastrum. Two alternative hypotheses tests significantly rejected the monophyly of these three genera. As a consequence, the genera Cetrariastrum, Everniastrum, and Parmelinopsis are reduced to synonymy with Hypotrachyna. Furthermore, we here propose an alternative classification to recognize the well-supported clades at subgeneric level and leave the remaining species unclassified within the genus. Five new subgenera are proposed: Hypotrachyna subgen. Cetrariastrum, Hypotrachyna subgen. Everniastrum, Hypotrachyna subgen. Longilobae, Hypotrachyna subgen. Parmelinopsis, and Hypotrachyna subgen. Sinuosae. Forty-nine new combinations are proposed.

scholarly journals New combinations and updated descriptions in Podagrostis (Agrostidinae, Poaceae) from the Neotropics and Mexico

PhytoKeys ◽  
2020 ◽  
Vol 148 ◽  
pp. 21-50 ◽  
Author(s):  
Steven P. Sylvester ◽  
Paul M. Peterson ◽  
Konstantin Romaschenko ◽  
William J. Bravo-Pedraza ◽  
Lia E. Cuta-Alarcon ◽  
...  
Keyword(s):  
Morphological Study ◽  
New World ◽  
Phylogenetic Analyses ◽  
Grass Species ◽  
High Mountain ◽  
New Combinations ◽  
Diagnostic Characteristics ◽  
Molecular Phylogenetic ◽  
Mountain Grasslands ◽  
Species Descriptions

Based on morphological study and corroborated by unpublished molecular phylogenetic analyses, five grass species of high-mountain grasslands in Mexico, Central and South America, Agrostis bacillata, A. exserta, A. liebmannii, A. rosei, and A. trichodes, are transferred to Podagrostis and bring the number of species of this genus recognized in the New World to ten. The name Apera liebmannii is lectotypified and epitypified. We provide an updated genus description for Podagrostis, and updated species descriptions, images, and notes on the new combinations. The diagnostic characteristics differentiating Podagrostis from Agrostis are: a) palea that reaches from (2/3) ¾ to almost the apex of the lemma; b) florets that usually almost equal the length of the glumes or are at least ¾ the length of the glumes; c) rachilla extension present and emerging from under the base of the palea as a slender short stub (rudimentary or up to 1.4 mm long, sometimes obscure in most florets in P. rosei), smooth or scaberulous, glabrous or distally pilulose (hairs < 0.3 mm long); d) lemmas usually awnless, sometimes with a short straight awn 0.2–0.6 mm long, inserted medially or in the upper 1/3 of the lemma, not surpassing the glumes (awn well-developed, straight or geniculate and inserted in lower 1/3 of lemma, not or briefly surpassing glumes in P. rosei). We include a generic key to distinguish the species of Podagrostis from other similar genera in Latin America and a key to distinguish the species of Podagrostis now accepted as occurring in these areas.

scholarly journals Three new symbiotic crabs of the genus Glassella Campos & Wicksten, 1997 from Atlantic and Gulf of Mexico coasts of Florida, USA (Decapoda: Brachyura: Pinnotheridae)

2020 ◽  
Vol 40 (6) ◽  
pp. 899-917
Author(s):  
Darryl L Felder ◽  
Emma Palacios Theil
Keyword(s):  
New Species ◽  
Gulf Of Mexico ◽  
Dna Sequencing ◽  
Genomic Dna ◽  
Phylogenetic Analyses ◽  
Western Atlantic ◽  
The Third ◽  
Separate Genus ◽  
Molecular Phylogenetic ◽  
Three New Species

Abstract New species of the pinnotherid crab genus GlassellaCampos & Wicksten, 1997 are described from western Atlantic waters along the east and west coasts of Florida, with the generic assignment of one being provisional. Glassella chaneyin. sp., Glassella martinin. sp., and Glassella taylorin. sp., all morphologically resemble the long-known species G. floridana (Rathbun, 1918) and overlap part of its distributional range, there occupying similar habitats and at least sometimes found with similar hosts. While genomic DNA sequencing has previously established the generic assignment of G. floridana, small sizes and suboptimal preservation histories of specimens representing the three new species have rendered all sequencing attempts unsuccessful, and thus not allowed their inclusion in molecular phylogenetic analyses. To facilitate present morphological comparisons, a rediagnosis of G. floridana was undertaken, and previously published illustrations were augmented, the latter now including figures of its previously undescribed male first gonopod and gonopodal plate. Comparisons of G. floridana to the three new species reveal striking diagnostic differences between all four species in their male first gonopods and varied configurations in the gonopodal plate or its probable homologs. These characters support the otherwise established separation of G. floridana from its congeners on the basis of its more strongly armed flexor margins of the fourth and fifth pereopods. In G. taylorin. sp., representing the smallest known member of Glassella, development of the third maxilliped and male first gonopod is so exceptional as to suggest the species may warrant eventual assignment to a separate genus.

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