Morphological characteristics of water mite larvae of the genus Arrenurus Duges, 1834, with notes on the phylogeny of the genus and an identification key

Zootaxa ◽  
2008 ◽  
Vol 1765 (1) ◽  
pp. 1 ◽  
Author(s):  
ANDRZEJ ZAWAL
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Tree ◽  
Principal Components ◽  
Maximum Parsimony ◽  
Morphological Characteristics ◽  
Identification Key ◽  
Individual Species ◽  
Water Mite ◽  
Components Analysis ◽  
Mp Method

The larval characteristics of 42 European Arrenurus species are provided, based on earlier descriptions. Diagnostic characters are elucidated. The division of the genus into the subgenera Arrenurus s. str., Micrarrenurus, Megaluracarus, Micruracarus, and Truncaturus has been retained. Principal Components Analysis (PCA) and phylogenetic analysis using the Maximum Parsimony (MP) method were used to construct a phylogenetic tree of the genus. Recommendations on changes to the traditional subgeneric systematics are given, concerning mainly the subgenera Micruracarus and Truncaturus as well as subgeneric allocation of Arrenurus nobilis Neuman which is transferred from Arrenurus s. str. to Micruracarus. An identification key, supplemented with diagnostic descriptions of individual species, is supplied.

A taxonomic review and phylogeny of the genera Hoplopisthius Senna, 1892 and Carcinopisthius Kolbe, 1892 (Coleoptera: Brentidae, Hoplopisthiini)

Zootaxa ◽  
2010 ◽  
Vol 2516 (1) ◽  
pp. 1 ◽  
Author(s):  
ANTOINE MANTILLERI
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Maximum Parsimony ◽  
New Guinea ◽  
Morphological Characters ◽  
Identification Key ◽  
Generic Level ◽  
Australian Species ◽  
Taxonomic Review ◽  
One New Species

The genera Hoplopisthius and Carcinopisthius are reviewed. All the species are redescribed and illustrated and an updated identification key and distributional maps are provided. One new species from New Guinea is described (Hoplopisthius maximus n. sp.) and two new synonymies are proposed: Hoplopisthius celebensis Kolbe, 1892 = H. trichemerus Senna, 1892, n. syn. and Carcinopisthius lamingtoni Damoiseau, 1987 = C. forcipitiger Damoiseau, 1987, n. syn. Phylogenetic analysis using PAUP (maximum parsimony) was performed using 25 morphological characters of adults. This analysis shows the group Hoplopisthius + Carcinopisthius is monophyletic, but Carcinopisthius alone is paraphyletic. Nomenclatural changes at the generic level are made to reconcile nomenclature and phylogeny: Hoplopisthius is preserved; Carcinopisthius is downgraded to the rank of subgenus for the two oriental species H. oberthueri and H. fruhstorferi; and Pseudotaphroderes is resurrected as a third subgenus and includes all New-Guinean and Australian species.

Phylogeny of Phyllachora species on bamboo and P. cephalostachyi sp. nov. from China

Phytotaxa ◽  
2021 ◽  
Vol 514 (2) ◽  
pp. 158-166
Author(s):  
XIAO-LING LI ◽  
HAI-YING YU ◽  
XI LUO ◽  
HAO WU ◽  
CHUN-YAN ZHAO ◽  
...  
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Species Diversity ◽  
Phylogenetic Tree ◽  
Phylogenetic Relationships ◽  
Morphological Characteristics ◽  
Molecular Phylogenetic Analysis ◽  
Full Description ◽  
High Species Diversity ◽  
Molecular Phylogenetic

Thirty-seven Phyllachora specimens were collected in China and examined for morphological characteristics. A molecular phylogenetic analysis based on a combined sequence dataset of ITS and LSU was also undertaken. Phyllachora cephalostachyi sp. nov. on Cephalostachyum pergracile is described based on its distinct phylogenetic relationships and a comparison of its morphological characteristics with known Phyllachora species on bamboo. Our results indicate a high species diversity of Phyllachora on bamboo in China. A full description and colour photographs of micro-characters are provided for the new species. A phylogenetic tree to show placement of the new species, and a table to compare morphology of the Phyllachora species reported on bamboo are also provided.

scholarly journals Addition to the Flora of Canada? A Specimen from the Arctic Archipelago, Northwest Territories Links Two Allopatric Species of Alkali Grass, Puccinellia

2005 ◽  
Vol 119 (4) ◽  
pp. 497 ◽  
Author(s):  
L. L. Consaul ◽  
L. J. Gillespie ◽  
K. I. MacInnes
Keyword(s):  
Principal Components ◽  
Morphological Characteristics ◽  
New Combination ◽  
The Arctic ◽  
The North ◽  
Banks Island ◽  
National Herbarium ◽  
Allopatric Species ◽  
Components Analysis ◽  
Ne Russia

A single herbarium specimen from Banks Island in the Canadian National Herbarium, Ottawa, is closest to Puccinellia wrightii (Puccinellia sect. Pseudocolpodium). This would represent a species new to Canada and an extension of over 1100 km from the previously known range in NW Alaska and NE Russia. The morphological characteristics of this specimen are compared with all taxa in P. section Pseudocolpodium and the North American P. arctica aggregate. Principal components analysis supports placement of this specimen in P. section Pseudocolpodium near P. wrightii, where it contributes to a morphological continuum between this species and P. vahliana. The new combination Puccinellia wrightii var. flava is made and a map of the current known distribution of the species in P. section Pseudocolpodium is presented.

Femsjonia uniseptata (Dacrymycetes, Basidiomycota), a new species collected from Pinus densiflora forests in Japan

Phytotaxa ◽  
2017 ◽  
Vol 312 (2) ◽  
pp. 271 ◽  
Author(s):  
TAKASHI SHIROUZU ◽  
YU FUKASAWA ◽  
YASUHIDE NAKAMURA
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Phylogenetic Tree ◽  
Pinus Densiflora ◽  
Morphological Characteristics ◽  
Line Drawings ◽  
Thin Walled ◽  
A New Species

Basidiocarps of an undescribed dacrymycetous species were collected from Pinus densiflora forests in Japan and described as a new species, Femsjonia uniseptata, based on both morphological characteristics and phylogenetic analysis. This new species is characterized by having discoid to applanate basidiocarps with white hairs at the margins; thin-walled internal and marginal hyphae with clamp connections; and 0–1-septate basidiospores. A detailed description, line drawings, phylogenetic tree to show the placement of F. uniseptata and comparison of the new species with allied taxa are provided.

scholarly journals Placolecis kashmirensis sp. nov. (Lichenized Ascomycota, Catillariaceae) from Azad Jammu & Kashmir, Pakistan

2021 ◽  
Vol 58 ◽  
Author(s):  
Robina Kousar ◽  
Rizwana Zulfiqar ◽  
Abdul Nasir Khalid
Keyword(s):  
Phylogenetic Analysis ◽  
Phylogenetic Tree ◽  
Identification Key ◽  
Jammu And Kashmir ◽  
Generic Position

Placolecis kashmirensis sp. nov. is described from Azad Jammu and Kashmir, Pakistan. It is characterized by a yellowish-brown thallus, hyaline, broadly ellipsoid ascospores, a relatively taller hymenium and pear-shaped pycnidia. The generic position is confirmed by a phylogenetic analysis based on nrITS sequences. Description, a phylogenetic tree, and identification key for all the known Placolecis species are provided.

scholarly journals The Northeast Chinese species of Psathyrella (Agaricales, Psathyrellaceae)

MycoKeys ◽  
2018 ◽  
Vol 33 ◽  
pp. 85-102 ◽  
Author(s):  
Jun-Qing Yan ◽  
Tolgor Bau
Keyword(s):  
Phylogenetic Analysis ◽  
New Species ◽  
Internal Transcribed Spacer ◽  
Northeast China ◽  
Phylogenetic Analyses ◽  
Morphological Characteristics ◽  
Its Region ◽  
Identification Key ◽  
Line Drawings

Twenty seven species of Psathyrella have been found in Northeast China. Amongst them, P.conica, P.jilinensis, P.mycenoides and P.subsingeri are described as new species, based on studying morphological characteristics and phylogenetic analyses. Detailed morphological descriptions, line drawings and photographs of the new species are presented. Phylogenetic analysis of the nuclear ribosomal internal transcribed spacer (ITS) region and an identification key to the 27 Psathyrella species occuring in Northeast China are provided.

Diagnoses Generated by Numerical Taxonomic Methods Applied to Standard Blood Variables

1980 ◽  
Vol 19 (04) ◽  
pp. 205-209
Author(s):  
L. A. Abbott ◽  
J. B. Mitton
Keyword(s):  
Liver Cirrhosis ◽  
Renal Disease ◽  
Principal Components Analysis ◽  
Discriminant Function ◽  
Principal Components ◽  
Discriminant Function Analysis ◽  
Chronic Renal Disease ◽  
Function Analysis ◽  
Infectious Hepatitis ◽  
Components Analysis

Data taken from the blood of 262 patients diagnosed for malabsorption, elective cholecystectomy, acute cholecystitis, infectious hepatitis, liver cirrhosis, or chronic renal disease were analyzed with three numerical taxonomy (NT) methods : cluster analysis, principal components analysis, and discriminant function analysis. Principal components analysis revealed discrete clusters of patients suffering from chronic renal disease, liver cirrhosis, and infectious hepatitis, which could be displayed by NT clustering as well as by plotting, but other disease groups were poorly defined. Sharper resolution of the same disease groups was attained by discriminant function analysis.

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