scholarly journals Taxonomic validation of a well-known Odontoglossum (Orchidaceae: Oncidiinae) “ghost”

Lankesteriana ◽  
2014 ◽  
Vol 14 (2) ◽  
Author(s):  
Stig Dalström
Keyword(s):  
Related Species ◽  
Type Specimen ◽  
Distinct Species ◽  
Closely Related Species ◽  
Royal Horticultural Society ◽  
Taxonomic History

The plant that was first called “Odontoglossum wyattianum” by Gurney Wilson was exhibited at a meeting of the Royal Horticultural Society on January 3, 1928. No official description was ever published and no type specimen was ever designated, or has surfaced, hence making this distinct species a taxonomic ‘ghost’. The taxonomic validation of Odontoglossum wyattianum is made here through the designation of a holotype, together with a diagnosis, a brief taxonomic history and comparison with similar and closely related species.

A reassessment of Dioon merolae (Zamiaceae) leads to the description of Dioon salas-moralesae, a new cycad species from Southeastern Oaxaca, Mexico

Phytotaxa ◽  
2021 ◽  
Vol 528 (2) ◽  
pp. 93-110
Author(s):  
JOSÉ SAID GUTIÉRREZ-ORTEGA ◽  
MIGUEL ANGEL PÉREZ-FARRERA ◽  
JEFFREY CHEMNICK ◽  
TIMOTHY J. GREGORY
Keyword(s):  
New Species ◽  
Morphological Variation ◽  
Related Species ◽  
Statistical Tests ◽  
Distinct Species ◽  
Closely Related Species ◽  
Morphometric Variation ◽  
Isthmus Of Tehuantepec ◽  
Morphological Differences ◽  
Recent Evaluation

The cycad genus Dioon comprises 17 species from Mexico and Honduras, all of them delimited based on their morphological variation and geographic distribution. A recent evaluation of the biological variation among Dioon populations from Oaxaca and Chiapas, Mexico, demonstrated that the concept of the species Dioon merolae actually consists of three lineages that should be recognized as different taxa. One lineage was already described as Dioon oaxacensis, leaving the concept of Dioon merolae comprising two lineages distributed on both sides of the Isthmus of Tehuantepec. However, there are conspicuous morphological differences between these two lineages. Here, we tested whether such a differentiation within the concept of Dioon merolae merits the differentiation of two different taxa. We evaluated the qualitative and morphometric variation among populations belonging to the Dioon merolae lineages, and compared it with the closely related species Dioon oaxacensis. Morphological observations and statistical tests demonstrated that the populations of southeastern Oaxaca, traditionally considered as part of Dioon merolae, represent a distinct species that we described as Dioon salas-moralesae. Identifying the diagnostic characters of this new species helps enable an understanding of the criteria that should be considered to delineate the boundaries between other cycad species.

Multigene phylogeny and morphology of Alternaria reveal a novel species and a new record in China

Phytotaxa ◽  
2019 ◽  
Vol 397 (2) ◽  
pp. 169
Author(s):  
YA QUN TAO ◽  
GUO GENG JIA ◽  
SEIN LAI LAI AUNG ◽  
QING LI WU ◽  
HONG XUE LU ◽  
...  
Keyword(s):  
Related Species ◽  
New Record ◽  
Novel Species ◽  
Distinct Species ◽  
Multigene Phylogeny ◽  
Closely Related Species ◽  
Multigene Analysis ◽  
Glehnia Littoralis ◽  
Alternaria Species ◽  
Leaf Symptoms

Two Alternaria species, A. carotiincultae and A. glehniae sp. nov. are isolated from necrotic leaf symptoms of Ligusticum chuanxiong Hort. and Glehnia littoralis Fr. Schmidt ex Miq in China, respectively. The two species are determined as distinct species belonging to sect. Radicina of Alternaria based on morphology and a multigene analysis of ITS, EF-1α, RPB2 and ATPase sequences. Alternaria glehniae is illustrated here as a novel species because the conidial size, septa and sporulation patterns are different from its closely related species. A. carotiincultae is also described as a new record in China.

scholarly journals Miconia gigantea, a long-forgotten endemic and endangered species of Melastomataceae in the Brazilian Atlantic Forest

2016 ◽  
Vol 88 (3 suppl) ◽  
pp. 1809-1818
Author(s):  
LILIAN P.G. DA ROSA ◽  
JOSÉ F.A. BAUMGRATZ ◽  
SEBASTIÃO J. DA SILVA NETO
Keyword(s):  
Endangered Species ◽  
Atlantic Forest ◽  
Endemic Species ◽  
Related Species ◽  
Conservation Status ◽  
Type Specimen ◽  
Brazilian Atlantic Forest ◽  
Closely Related Species ◽  
Floristic Studies ◽  
Occurrence Records

ABSTRACT Taxonomic and floristic studies in the state of Rio de Janeiro allowed the rediscovery of Miconia gigantea, an endemic species to the Atlantic Forest, until recently known only from the type specimen, collected over 100 years by A.F.M. Glaziou. We present an amended and detailed description of M. gigantea, providing characteristics of the flowers, fruits and seeds, in addition to illustrations, comments about taxonomic affinities with closely related species, the presently known distribution together with new occurrence records, and the conservation status.

A TAXONOMIC REVISION OF THE GENUS PSEUDOPHYSALOPTERA BAYLIS, 1934 (NEMATODA: PHYSALOPTERIDAE)

1963 ◽  
Vol 41 (6) ◽  
pp. 1069-1077 ◽  
Author(s):  
G. A. Schad
Keyword(s):  
North American ◽  
Related Species ◽  
Taxonomic Revision ◽  
Distinct Species ◽  
Closely Related Species ◽  
Tentative Identification

The genus Pseudophysaloptera, recognized as a genus distinct from Physatoptera, is tentatively considered monotypic. The several species previously assigned to the genus Pseudophysaloptera, and the closely related species Physaloptera kotlani, have been reduced to one polytypic species, Pseudophysaloptera formosana, with two subspecies, P. f. formosana and P. f. soricina. The former occurs in Oriental species of Suncus, while the latter occurs in Palaearctic and Ethiopian soricid insectivores. North American specimens, which may represent a distinct species, are tentatively assigned to P. f. soricina. Presently available collections are only sufficient for a tentative identification of the Nearctic form.

Designation of a neotype for the Brazilian porcupine, Coendou prehensilis (Linnaeus, 1758)

Zootaxa ◽  
2011 ◽  
Vol 2791 (1) ◽  
pp. 30 ◽  
Author(s):  
YURI L. R. LEITE ◽  
VILACIO CALDARA JÚNIOR ◽  
ANA CAROLINA LOSS ◽  
LEONORA PIRES COSTA ◽  
ÉVERTON R. A. MELO ◽  
...  
Keyword(s):  
Mitochondrial Dna ◽  
Geographic Distribution ◽  
Related Species ◽  
Taxonomic Revision ◽  
Type Specimen ◽  
Northeastern Brazil ◽  
Closely Related Species ◽  
Geographic Ranges ◽  
Central Brazil ◽  
Shed Light

The Brazilian porcupine was one of several species described and illustrated by the 17 th -century naturalist Georg Marcgrave, whose text was among the primary references upon which Linnaeus based his Hystrix prehensilis. As currently understood, Coendou prehensilis is a wide-ranging polytypic taxon that has never been revised and may represent a complex of closely related species. Given that no name-bearing type specimen of C. prehensilis is believed to be extant, and in order to avoid ambiguous application of this name, we designate a specimen collected at the type locality in Pernambuco, northeastern Brazil, as the neotype for Hystrix prehensilis Linnaeus. The geographic distribution of mitochondrial DNA haplotypes suggests that specimens from west-central Brazil previously identified as “Coendou prehensilis” belong to a different species, but only a comprehensive taxonomic revision of the genus will shed light on species limits and the geographic ranges of C. prehensilis and other congeneric forms.

Pagurus pubescens and a Proposed New Name for a Closely Related Species in the Northwest Atlantic (Decapoda: Anomura)

1964 ◽  
Vol 21 (2) ◽  
pp. 355-365 ◽  
Author(s):  
H. J. Squires
Keyword(s):  
Hermit Crab ◽  
Related Species ◽  
Type Specimen ◽  
Diagnostic Character ◽  
Closely Related Species ◽  
Northwest Atlantic ◽  
The Third ◽  
New Name ◽  
Anterior Division

Reference is made to Krøyer's description of the hermit crab, Pagurus pubescens, and to Stimpson's later description of P. krøyeri. Comparison of specimens of krøyeri with the type specimen of pubescens showed them to be identical. The American species thought by Stimpson to be pubescens and, therefore, left without a name, is now given a name, P. arcuatus. Both species are compared with P. trigonocheirus, and a new diagnostic character, the shape of the anterior division of the third sternite, is used.

CONCERNING SCOLOPS COCKERELLI, (HOMOPTERA. FULGORIDAE)

1930 ◽  
Vol 62 (6) ◽  
pp. 120-122
Author(s):  
Paul B. Lawson
Keyword(s):  
Related Species ◽  
British Museum ◽  
Type Specimen ◽  
Closely Related Species ◽  
University Science

In his paper on the genus Scolops (Kansas University Science Bulletin, Volume XVIII, page 417, 1928), Breakey comes to the conclusion that Scolops cockerelli Fowler is a synonym of Ball's Scolops robustus. On pages 427-428 he records the comparison of specimens of a number of closely related species with the type specimen of Fowler's species by Mr. W. E. China of the British Museum.

NEW SPECIES IN MALLOTUS AND CROTON (EUPHORBIACEAE) FROM NEPAL

2004 ◽  
Vol 61 (1) ◽  
pp. 31-39
Author(s):  
T. KUROSAWA
Keyword(s):  
New Species ◽  
Related Species ◽  
Distinct Species ◽  
Sensu Stricto ◽  
Altitudinal Distribution ◽  
Closely Related Species ◽  
Distribution Maps ◽  
Two New Species

Two new species of Euphorbiaceae (sensu stricto), Mallotus bicarpellatus (Acalyphoideae) and Croton nepalensis (Crotonoideae), are described from Nepal. Mallotus bicarpellatus is closely related to M. philippensis but differs in having 1 or 2 pairs of leaf glands distinctly separated from the petiole attachment, pistillate flowers with staminodes and longer pedicels, and fewer locules and stigmas. Croton nepalensis differs from C. tiglium in having leaves with truncate, subcordate or rounded base, smaller, broadly ovoid capsules, and smaller seeds. A table is provided showing how Croton nepalensis differs from other closely related species. Croton himalaicus is here regarded as a synonym of C. tiglium, though it has been treated variously as a distinct species or a synonym of C. tiglium or C. birmanicus by recent authors. Distribution maps and graphs of altitudinal distribution are given for the new species.

IMPACTS OF PHYLOGENETIC DILUTION AND CONCENTRATION EFFECTS ON SPECIES DIVERSITY AND DISTRIBUTION PATTERNS

2017 ◽  
Vol 25 (01) ◽  
pp. 71-81
Author(s):  
YOUHUA CHEN
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Relative Abundance ◽  
Related Species ◽  
Dilution Effect ◽  
Distribution Patterns ◽  
Distinct Species ◽  
Closely Related Species ◽  
Phylogenetic Relatedness ◽  
Phylogenetic Community Structure

In theoretical ecology and community ecology, it is still unclear how phylogenetic community structure and species distributions are linked together. In this paper, a neutral model for evaluating phylogenetic constraints on species diversity and distribution patterns is developed to address these issues. To accomplish this, temporal species distribution and diversity patterns are evaluated and simulated by considering the impact of phylogenetic relatedness of species in a lattice landscape with square grids. A continuous patch for the resultant distributional range map of a species is defined as a group of grids in which the interior grids are adjacent to each other while the edge grids of the patch are isolated from other remaining grids in the range map. The adjacency or isolation of a grid with respect to another grid follows the von Neumann neighborhood criterion. The hypothesis tested is: phylogenetically closely related species tend to avoid each other (phylogenetic dilution), which produces a phylogenetic overdispersion pattern. In this case, all species have similar species abundances and distribution-patch size patterns. In contrast, if closely related species tend to associate together (phylogenetic concentration), a phylogenetic clustering pattern emerges: phylogenetically distinct species tend to have higher abundances and more large distribution patches. Using simulations, this paper presents results which demonstrate the reverse phenomenon: if it is assumed that phylogenetic relatedness of species is modeled as a dilution effect, the resultant distributional maps for evolutionarily distinct species present significantly increased numbers of continuous large patches. An evolutionarily distinct clade tends to have significantly higher relative abundance than other clades in all simulations. It was also found that if phylogenetic relatedness of species is modeled as a concentration effect, the simulated distributional map of each species would present a similar percentage of large patches for both evolutionarily unique and common clades for many cases when the community size is large enough. However, being similar to dilution effect, the resultant species relative abundance for evolutionarily unique clade is significantly higher than that for evolutionarily common clade. In conclusion, evolutionary distinct species will have more chances to survive with high populations and less fragmented distributional range in environments where the phylogenetic dilution effect is functioning. It is hoped that these results contributed to clarifying the complex associations generated by phylogenetic community structure in future ecological and evolutionary studies.

TWO SPECIES OF PALPITA HÜBNER DESCRIBED BY JANSE, WITH DESCRIPTIONS OF NEW SPECIES (LEPIDOPTERA: PYRALIDAE: PYRAUSTINAE)

1977 ◽  
Vol 109 (1) ◽  
pp. 67-76
Author(s):  
Eugene Munroe
Keyword(s):  
New Species ◽  
Related Species ◽  
Distinct Species ◽  
Type Material ◽  
New Combination ◽  
New Combinations ◽  
Closely Related Species ◽  
Type Series ◽  
Species Inquirenda ◽  
Lepidoptera Pyralidae

AbstractLectotypes are designated for Margaronia curvilinea Janse, 1924, and Margaronia pratti Janse, 1924. These species are referred to Palpita Hübner, [1808], as new combinations. They are redescribed and differentiated from certain closely related species. Phalaena Geometra annulata Fabricius, 1794, and Botys partialis Lederer, 1863, are treated as species inquirenda in the absence of type material. Glyphodes celsalis Walker, 1859, and Margaronia inusitata Butler, 1879, are treated as distinct species and are transferred to Palpita as new combinations. Margaronia warrenalis Swinhoe, 1894, is transferred to Palpita as a new combination; a lectotype is designated for this species and its characters are compared with those of P. curvilinea. Palpita varii n. sp., from Manusela, Ceram, and P. jansei n. sp., from the Island of Mioswar, Geelvink Bay, New Guinea, are described from holotypes drawn from the type-series of P. pratti; characters differentiating these three species are given.

Sign in / Sign up

Export Citation Format

Share Document