scholarly journals Review of nomenclature for Actinidiaceae in Australia

Telopea ◽  
2021 ◽  
Vol 24 ◽  
Author(s):  
Russell Barrett ◽  
Keyword(s):  
Native Species ◽  
New Combination ◽  
New Taxon ◽  
Actinidia Chinensis ◽  
Flora Of Australia

A lectotype is chosen for Australia’s only native species of Actinidiaceae, Dillenia andreana F.Muell. A case is made for Saurauia andreana (F.Muell.) Oliv. ex F.Muell. to be treated as a new combination based on Dillenia andreana rather than as the name of a new taxon. Notes are provided on the classification of Yang-tao (Chinese Gooseberry or Kiwifruit), Actinidia chinensis var. deliciosa (A.Chev.) A.Chev., a taxon occasionally naturalised in Australia, for use on the online Flora of Australia.

RHYNCHOLITES AND THE PROBLEM OF NARROW AND BROAD CONCEPTION OF TAXONS

2018 ◽  
pp. 12-17 ◽  
Author(s):  
I. R. Khuzina ◽  
V. N. Komarov
Keyword(s):  
Sexual Dimorphism ◽  
Morphological Characteristics ◽  
Mass Scale ◽  
Individual Variability ◽  
Point Of View ◽  
The Other ◽  
New Taxon ◽  
Artificial System ◽  
Broad Understanding

The paper considers a point of view, based on the conception of the broad understanding of taxons. According to this point of view, rhyncholites of the subgenus Dentatobeccus and Microbeccus are accepted to be synonymous with the genus Rhynchoteuthis, and subgenus Romanovichella is considered to be synonymous with the genus Palaeoteuthis. The criteria, exercising influence on the different approaches to the classification of rhyncholites, have been analyzed (such as age and individual variability, sexual dimorphism, pathological and teratological features, degree of disintegration of material), underestimation of which can lead to inaccuracy. Divestment of the subgenuses Dentatobeccus, Microbeccus and Romanovichella, possessing very bright morphological characteristics, to have an independent status and denomination to their synonyms, has been noted to be unjustified. An artificial system (any suggested variant) with all its minuses is a single probable system for rhyncholites. The main criteria, minimizing its negative sides and proving the separation of the new taxon, is an available mass-scale material. The narrow understanding of the genus, used in sensible limits, has been underlined to simplify the problem of the passing the view about the genus to the other investigators and recognition of rhyncholites for the practical tasks.

scholarly journals New Visualization Models of Designation Pathway and Group Categorization of Device–Drug and Device–Biologic Combination Products Classification in the United States: Analysis of FDA Capsular Decisions

2021 ◽  
Author(s):  
Nobuo Uemura ◽  
Hiroshi Kasanuki ◽  
Mitsuo Umezu
Keyword(s):  
The United States ◽  
New Combination ◽  
Biological Product ◽  
Regulatory Scheme ◽  
Early Access ◽  
Dimensional Group ◽  
Device Component ◽  
Intended Use ◽  
Component Function

Abstract Objective The developer and sponsor of new combination products in US needs to forecast which classification and designation to the regulatory scheme of drug, biological product, or device would be required for the new products by the Food and Drug Administration (FDA). To improve the predictability and acceptability of the designation of new combination products for innovators, developers, and sponsors, and to encourage the development and early access of new combination products, we proposed new visualization models of the designation pathway and group categorization. Method We searched the website of the FDA on 15 November, 2020 to identify the regulatory scheme of the FDA’s 129 capsular decision cases of device–drug and device–biologics combination products and other publicly available cases the FDA designated to the drug/biologic or device regulatory scheme. Results By introducing a new definition for primary intended use (PIU) by developers and sponsors extracted from the classification factors of primary mode of action (PMOA), we developed new visualization models of the designation pathway and two-dimensional group categorization. And applying these models to the cases the FDA designated, we proposed a new group categorization of combination products while focusing on the device component function. Conclusions The new visualization models with PIU and PMOA and the new group categorization focusing on the device component function proposed in this study may increase predictability and acceptability of the classification of newly developed combination products into the regulatory scheme of drug, biological product, and device, for innovators, developers, and sponsors.

Evolution and environment in the late Silurian-early Devonian: the rise of the pteridophytes

1985 ◽  
Vol 309 (1138) ◽  
pp. 147-165 ◽  
Keyword(s):  
Vascular Plants ◽  
Preliminary Report ◽  
Life Histories ◽  
Early History ◽  
Flora Of Australia ◽  
Early Devonian ◽  
The World ◽  
History Of

A brief review of the major advances since 1979 in Silurian and Devonian palaeobotany is followed by a preliminary report on a Gedinnian assemblage from the Welsh Borderland. This is dominated by rhyniopsids and includes several species of Cooksonia and Salopella . Spores have been isolated from a number of taxa. The assemblage is used to illustrate the problems of recognition and classification of early vascular plants. Parallel sedimentological and palaeogeographical studies permit speculation on the ecology and life histories of the plants that colonized the Old Red Continent. It is concluded that the lack of well preserved and independently dated assemblages from elsewhere in the world (an exception being the Baragwanathia flora of Australia) prevents the detection of any provincialism in the late Silurian and early Devonian and makes generalizations on the early history of vascular plants premature.

Micromorphological studies of leaf epidermal features in populations of maples (Acer L.) from Iran

Phytotaxa ◽  
2017 ◽  
Vol 299 (1) ◽  
pp. 36
Author(s):  
MOJGANSADAT MOHTASHAMIAN ◽  
FARIDEH ATTAR ◽  
KAVEH KAVOUSI ◽  
ALI MASOUDI-NEJAD
Keyword(s):  
Native Species ◽  
Deciduous Trees ◽  
Epicuticular Waxes ◽  
Abaxial Surface ◽  
Sem Images ◽  
Qualitative Variables ◽  
Epidermal Features ◽  
Parametric Analyses ◽  
First Time

As the largest genus of broad leaved deciduous trees, Acer L. contains about 126 species distributed in the temperate regions of the Northern Hemisphere. With eight native species in Iran, maples are among the most important tree species in the country. Micromorphological traits of 39 populations of Iranian native species indicated the value of leaf epidermal characteristics in identification and classification of maples. A number of epidermal morphological features of the abaxial surface were investigated using LM and SEM images. The occurrence of stomata in clusters is reported for the first time in Acer. The shape of the epidermal cells, anticlinal cell wall patterns, type of indumentum, and epicuticular waxes were the most significant variables in this study. The ability of quantitative and qualitative variables in segregating the studied taxa was evaluated by statistical methods, including PCA, MCA and Non-parametric analyses.

Detecting Cutleaf Teasel (Dipsacus laciniatus) along a Missouri Highway with Hyperspectral Imagery

2012 ◽  
Vol 5 (2) ◽  
pp. 155-163 ◽  
Author(s):  
Diego J. Bentivegna ◽  
Reid J. Smeda ◽  
Cuizhen Wang
Keyword(s):  
Spatial Resolution ◽  
Native Species ◽  
Near Infrared ◽  
Bare Soil ◽  
Flowering Plants ◽  
Hyperspectral Images ◽  
Accurate Assessment ◽  
Water Classification ◽  
Management Techniques

AbstractCutleaf teasel is an invasive, biennial plant that poses a significant threat to native species along roadsides in Missouri. Flowering plants, together with understory rosettes, often grow in dense patches. Detection of cutleaf teasel patches and accurate assessment of the infested area can enable targeted management along highways. Few studies have been conducted to identify specific species among a complex of vegetation composition along roadsides. In this study, hyperspectral images (63 bands in visible to near-infrared spectral region) with high spatial resolution (1 m) were analyzed to detect cutleaf teasel in two areas along a 6.44-km (4-mi) section of Interstate I-70 in mid Missouri. The identified classes included cutleaf teasel, bare soil, tree/shrub, grass/other broadleaf plants, and water. Classification of cutleaf teasel reached a user's accuracy of 82 to 84% and a producer's accuracy of 89% in the two sites. The conditional κ value was around 0.9 in both sites. The image-classified cutleaf teasel map provides a practical mechanism for identifying locations and extents of cutleaf teasel infestation so that specific cutleaf teasel management techniques can be implemented.Cutleaf teasel is an exotic weed that infests roadside environments in Missouri. As a growing biennial, the plant develops as a rosette during the first year and bolts during the second. Dense patches contain flowering plants with understory rosettes. The objective of this work was to develop approaches for detecting cutleaf teasel patches with accurate assessment in a complex of species along a roadside. Thus, management of cutleaf teasel could be located at specific sites. Two hyperspectral images (63 bands with 1-m spatial resolution) were analyzed to detect cutleaf teasel along the Interstate Highway I-70 in mid Missouri. Classification of cutleaf teasel reached a user's accuracy of 82 to 84% and a producer's accuracy of 89% at the two sites. The image-classified teasel map provides a practical mechanism for identifying the locations and extents of cutleaf teasel infestation so that specific management techniques can be implemented.

Bacidina mendax sp. nov., a new widespread species in Central Europe, together with a new combination within the genus Bacidina

2018 ◽  
Vol 50 (1) ◽  
pp. 43-57 ◽  
Author(s):  
Paweł CZARNOTA ◽  
Beata GUZOW-KRZEMIŃSKA
Keyword(s):  
Central Europe ◽  
Intraspecific Variation ◽  
Lichen Species ◽  
Its Rdna ◽  
New Combination ◽  
New Taxon ◽  
Widespread Species ◽  
Data Support

AbstractBacidina mendax, described here as a new lichen species, appears to be common and widespread, at least in Central Europe. Analyses of the ITS rDNA region and the morphology of specimens showed an intraspecific variation in the new taxon. It differs from B. neosquamulosa in the lack of a subsquamulose thallus, and from B. caligans in its longer and only slightly curved to apically hooked conidia and lack of a granular (sorediate) thallus. Since ITS rDNA data support the inclusion of Bacidia pycnidiata Czarnota & Coppins in the genus Bacidina, a new combination is proposed.

Notes on the taxonomic identity of Bystus hirtulus (Kirsch) and transfer from Endomychidae to Coccinellidae (Coleoptera: Cucujoidea), with designation of a lectotype for Alexia hirtula Kirsch

Zootaxa ◽  
2011 ◽  
Vol 2868 (1) ◽  
pp. 62 ◽  
Author(s):  
FLOYD W. SHOCKLEY ◽  
NATALIA J. VANDENBERG
Keyword(s):  
New World ◽  
Type Material ◽  
New Combination ◽  
Undescribed Species ◽  
Type Series ◽  
The Family

During an examination of type material of the New World endomychid genus Bystus Guérin-Méneville (Anamorphinae), the type series of Alexia hirtula Kirsch from Peru was found to contain a mixture of different taxa, none of which belong to the genus Bystus, the subfamily Anamorphinae, or even the family Endomychidae. Alexia hirtula is transferred to Delphastus Casey (Coccinellidae: Microweiseinae: Serangiini), establishing the new combination, Delphastus hirtulus (Kirsch), and a lectotype is designated. Of the three paralectotypes, one appears to be conspecific with the lectotype, one is identified as an undescribed species of Microscymnus Champion (Coccinellidae: Cryptognathini), and one, a partial specimen lacking the head, pronotum, and one elytron, is identified as a species of Leiodidae in the tribe Scotocryptini, probably Aglyptinus Cockerell. A diagnosis and redescription of D. hirtulus is provided, and Gordon’s (1994) key to Delphastus is modified to accommodate the newly transferred species. The historical classification of D. hirtulus is discussed along with characters justifying its revised placement.

scholarly journals Don’t Demean “Invasives”: Conservation and Wrongful Species Discrimination

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 871
Author(s):  
C.E. Abbate ◽  
Bob Fischer
Keyword(s):  
Native Species ◽  
Double Standard ◽  
Species Discrimination

It is common for conservationists to refer to non-native species that have undesirable impacts on humans as “invasive”. We argue that the classification of any species as “invasive” constitutes wrongful discrimination. Moreover, we argue that its being wrong to categorize a species as invasive is perfectly compatible with it being morally permissible to kill animals—assuming that conservationists “kill equally”. It simply is not compatible with the double standard that conservationists tend to employ in their decisions about who lives and who dies.

scholarly journals Detection and Classification of Overlapping Cell Nuclei in Cytology Effusion Images Using a Double-Strategy Random Forest

2018 ◽  
Vol 8 (9) ◽  
pp. 1608 ◽  
Author(s):  
Khin Win ◽  
Somsak Choomchuay ◽  
Kazuhiko Hamamoto ◽  
Manasanan Raveesunthornkiat
Keyword(s):  
Feature Extraction ◽  
Random Forest ◽  
Performance Metrics ◽  
Superior Performance ◽  
New Combination ◽  
Final Decision ◽  
Cell Detection ◽  
Cell Nuclei ◽  
Dominant Feature

Due to the close resemblance between overlapping and cancerous nuclei, the misinterpretation of overlapping nuclei can affect the final decision of cancer cell detection. Thus, it is essential to detect overlapping nuclei and distinguish them from single ones for subsequent quantitative analyses. This paper presents a method for the automated detection and classification of overlapping nuclei from single nuclei appearing in cytology pleural effusion (CPE) images. The proposed system is comprised of three steps: nuclei candidate extraction, dominant feature extraction, and classification of single and overlapping nuclei. A maximum entropy thresholding method complemented by image enhancement and post-processing was employed for nuclei candidate extraction. For feature extraction, a new combination of 16 geometrical and 10 textural features was extracted from each nucleus region. A double-strategy random forest was performed as an ensemble feature selector to select the most relevant features, and an ensemble classifier to differentiate between overlapping nuclei and single ones using selected features. The proposed method was evaluated on 4000 nuclei from CPE images using various performance metrics. The results were 96.6% sensitivity, 98.7% specificity, 92.7% precision, 94.6% F1 score, 98.4% accuracy, 97.6% G-mean, and 99% area under curve. The computation time required to run the entire algorithm was just 5.17 s. The experiment results demonstrate that the proposed algorithm yields a superior performance to previous studies and other classifiers. The proposed algorithm can serve as a new supportive tool in the automated diagnosis of cancer cells from cytology images.

scholarly journals A supplement to the checklist of the New World chafers (Coleoptera: Scarabaeidae: Melolonthinae) with notes on their tribal classification

Zootaxa ◽  
2005 ◽  
Vol 1032 (1) ◽  
pp. 29 ◽  
Author(s):  
ANDREW B.T. SMITH ◽  
ARTHUR V. EVANS
Keyword(s):  
Type Species ◽  
New World ◽  
Single Species ◽  
Junior Synonym ◽  
New Combination ◽  
Taxonomic Changes ◽  
Tribal Classification

The checklist of the New World Melolonthinae published in 2003 by Evans is updated to 30 June 2005. Corrections and omissions to the previous checklist are also noted and necessary taxonomic changes are made. Melolontha elongata Fabricius, 1792 is designated as the type species of Philochloenia Dejean, 1833, syn. nov. thereby placing this genus as a junior synonym of Dichelonyx Harris, 1827. Phyllophaga guatemalica (Moser, 1918), syn. nov. and Phyllophaga longiclava (Moser, 1918), syn. nov. are placed in synonymy with Phyllophaga ravida (Blanchard, 1851). The Australian genus Deuterocaulobius Dalla Torre, 1912, stat. nov. is brought out of synonymy and considered the valid name for “Phyllochlaenia Blanchard, 1846.” Warwickia, nom. nov. is proposed as a replacement name for the junior homonym Benedictia Sanderson, 1939 (non Dybowski, 1875) and consequently, Warwickia pilosa (Sanderson, 1939), comb. nov. is a new combination for the single species in this genus. A brief overview of the tribal classification of Melolonthinae is presented.

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