A monographic account of Australian species of Amphiroa (Corallinaceae, Rhodophyta)

2013 ◽  
Vol 26 (2) ◽  
pp. 81 ◽  
Author(s):  
A. S. Harvey ◽  
W. J. Woelkerling ◽  
J. M. Huisman ◽  
C. F. D. Gurgel
Keyword(s):  
Comparative Analysis ◽  
Molecular Systematics ◽  
Species Concept ◽  
Distinct Species ◽  
Species Level ◽  
Type Material ◽  
Type Specimens ◽  
Australian Species ◽  
Species Comparisons ◽  
Vegetative System

The first Australia-wide monograph of Amphiroa (Corallinaceae, Rhodophyta) based on the morphological–anatomical species concept has confirmed the occurrence of nine species (A. anceps, A. beauvoisii, A. crassa, A. exilis, A. foliacea, A. fragilissima, A. gracilis, A. klochkovana, A. tribulus) and provides a basis for future molecular-systematics studies. A comparative analysis of 285 specimens from 121 localities, along with type material examinations, yielded clear evidence that nine characters associated with the vegetative system and tetrasporangial conceptacles were diagnostically significant at species level. Detailed accounts of each species are presented, along with an identification key, data on type specimens, species comparisons and biogeographic notes. A. foliacea is epitypified. Brief accounts of 34 additional taxa reported from Australia and at some stage ascribed to Amphiroa are included. Galaxaura versicolor and Amphiroa galaxauroides are heterotypic synonyms of A. anceps; recognition of A. anastomosans, A. ephedraea and A. nobilis as distinct species requires further evaluation; and A. dilatata and A. gaillonii are species of uncertain status. Amphiroa ephedraea is lectotypified. The remaining 27 names involve nomina nuda, illegitimate names, orthographic variants or taxa now excluded from Amphiroa.

Laevistrombus Abbott 1960 (Gastropoda: Strombidae): Indian and southwest Pacific species

Zootaxa ◽  
2019 ◽  
Vol 4555 (4) ◽  
pp. 491
Author(s):  
STEPHEN J. MAXWELL ◽  
AART M. DEKKERS ◽  
TASMIN L. RYMER ◽  
BRADLEY C. CONGDON
Keyword(s):  
Distinct Species ◽  
Geographic Range ◽  
Species Level ◽  
Type Material ◽  
Marine Gastropod ◽  
Comparative Analyses ◽  
Southwest Pacific ◽  
Significant Variability ◽  
Extant Species ◽  
Pacific Species

Here we evaluate the taxonomy of the marine gastropod genus Laevistrombus Abbott, 1960 and determine that there are five extant species within this genus, three of which occur in the southwest Pacific. Comparative analyses of this complex have been problematic due to the lack of designated type material. Therefore, we present the type material for L. canarium Linnaeus, 1758; L. taeniatus Quoy & Gaimard, 1834; and L. vanikorensis Quoy & Gaimard, 1834. Current taxonomy has L. vanikorensis absorbed within the L. canarium complex. L. taeniatus is generally held to be a synonym of L. turturella Röding, 1789. We demonstrate that both L. taeniatus and L. vanikorensis are distinct species and reinstate both to species level. Our revision also notes the significant variability in early teleoconch structure within the geographic range of L. vanikorensis, and highlights the need for a greater revision of Laevistrombus, given the diversity in early teleoconch morphology present in southwest Pacific species. 

Redescription of three species of Apobaetis Day, 1955 (Ephemeroptera: Baetidae)

Zootaxa ◽  
2020 ◽  
Vol 4808 (2) ◽  
pp. 317-330
Author(s):  
PAULO VILELA CRUZ
Keyword(s):  
South America ◽  
Species Identification ◽  
Distinct Species ◽  
Identification Key ◽  
Type Material ◽  
Similar Species ◽  
Type Specimens ◽  
The Family ◽  
Morphological Diagnosis ◽  
Almost All

The genus Apobaetis Day is one of the few lineages of the family Baetidae distributed throughout the continental Americas. Three very similar species of this genus—Apobaetis etowah (Traver), Apobaetis signifer Lugo-Ortiz & McCaffety, and Apobaetis fiuzai Salles & Lugo-Ortiz—have important morphological details, pertinent to species identification, that remain to be described. This lack of detailed taxonomic information has resulted in ample misdiagnoses of the species, particularly regarding A. fiuzai in South America. In fact, almost all the recently collected specimens have been assigned to this species. The present study aimed to establish a new morphological diagnosis of these three Apobaetis species through a redescription of their larvae, based on type material, and the proposition of a new identification key for larvae of this genus. The review of the type specimens supports two conclusions: (i) that A. etowah, A. signifer, and A. fiuzai are highly similar, yet can be considered as distinct species, and (ii) the previous diagnoses and keys do not effectively separate A. fiuzai from A. signifer. 

A revision of the genus Pultenaea (Fabaceae). 2. Eastern Australian species with velutinous ovaries and incurved leaves

2003 ◽  
Vol 16 (2) ◽  
pp. 229 ◽  
Author(s):  
R. P. J. de Kok ◽  
J. G. West
Keyword(s):  
New Species ◽  
Species Concept ◽  
Species Level ◽  
Separate Group ◽  
Australian Species ◽  
Two New Species ◽  
First Time ◽  
Eleven Species

All 32 species of the genus Pultenaea Sm. occurring in the eastern states of Australia with velutinous ovaries and incurved leaves are revised and seven names are reduced into synonymy for the first time. Two new species are described, Pultenaea penna de Kok and Pultenaea rodwayii Tindale ex de Kok, and one former variety of P. muelleri is raised to species level (P. reflexifolia). Eleven species (P. acerosa, P. costata, P. divaricata, P.�laxiflora, P. muelleri, P. prolifera, P. prostrata, P. subalpina, P. trifida, P. trinervis and P. vestita) are lectotypified and a key to the group is provided. The legitimacy of treatment of the presented species as a separate group and the species concept used is briefly discussed.

scholarly journals Comparative analysis and phylogenetic investigation of Hong Kong Ilex chloroplast genomes

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Bobby Lim-Ho Kong ◽  
Hyun-Seung Park ◽  
Tai-Wai David Lau ◽  
Zhixiu Lin ◽  
Tae-Jin Yang ◽  
...  
Keyword(s):  
Hong Kong ◽  
Comparative Analysis ◽  
Phylogenetic Relationships ◽  
Species Level ◽  
The Other ◽  
Trna Genes ◽  
Protein Coding ◽  
Chloroplast Genomes ◽  
Plant Group ◽  
Ilex Rotunda

AbstractIlex is a monogeneric plant group (containing approximately 600 species) in the Aquifoliaceae family and one of the most commonly used medicinal herbs. However, its taxonomy and phylogenetic relationships at the species level are debatable. Herein, we obtained the complete chloroplast genomes of all 19 Ilex types that are native to Hong Kong. The genomes are conserved in structure, gene content and arrangement. The chloroplast genomes range in size from 157,119 bp in Ilex graciliflora to 158,020 bp in Ilex kwangtungensis. All these genomes contain 125 genes, of which 88 are protein-coding and 37 are tRNA genes. Four highly varied sequences (rps16-trnQ, rpl32-trnL, ndhD-psaC and ycf1) were found. The number of repeats in the Ilex genomes is mostly conserved, but the number of repeating motifs varies. The phylogenetic relationship among the 19 Ilex genomes, together with eight other available genomes in other studies, was investigated. Most of the species could be correctly assigned to the section or even series level, consistent with previous taxonomy, except Ilex rotunda var. microcarpa, Ilex asprella var. tapuensis and Ilex chapaensis. These species were reclassified; I. rotunda was placed in the section Micrococca, while the other two were grouped with the section Pseudoaquifolium. These studies provide a better understanding of Ilex phylogeny and refine its classification.

scholarly journals Performance of Five Commercial Identification Platforms for Identification of Staphylococcus delphini

2019 ◽  
Vol 57 (11) ◽  
Author(s):  
Matthew C. Canver ◽  
Tsigereda Tekle ◽  
Samantha T. Compton ◽  
Katrina Callan ◽  
Eileen M. Burd ◽  
...  
Keyword(s):  
Distinct Species ◽  
Human Infection ◽  
Species Level ◽  
Accurate Identification ◽  
Content Type ◽  
Maldi Tof Ms ◽  
Maldi Tof ◽  
Staphylococcus Intermedius ◽  
Animal Pathogens ◽  
Tof Ms

ABSTRACT The Staphylococcus intermedius group (SIG) is a collection of coagulase-positive staphylococci consisting of four distinct species, namely, Staphylococcus cornubiensis, Staphylococcus delphini, Staphylococcus intermedius, and Staphylococcus pseudintermedius. SIG members are animal pathogens and rare causes of human infection. Accurate identification of S. pseudintermedius has important implications for interpretation of antimicrobial susceptibility testing data and may be important for other members of the group. Therefore, we sought to evaluate the performance of five commercially available identification platforms with 21 S. delphini isolates obtained from a variety of animal and geographic sources. Here, we show that automated biochemical platforms were unable to identify S. delphini to the species level, a function of its omission from their databases, but could identify isolates to the SIG level with various degrees of success. However, all automated systems misidentified at least one isolate as Staphylococcus aureus. One matrix-assisted laser desorption ionization–time of flight mass spectrometry (MALDI-TOF MS) system was able to identify S. delphini to the species level, suggesting that MALDI-TOF MS is the best option for distinguishing members of the SIG. With the exception of S. pseudintermedius, it is unclear if other SIG members should be routinely identified to the species level; however, as our understanding of their role in animal and human diseases increases, it may be necessary and important to do so.

Corrigendum to: Lamprothamnium in Australia (Characeae, Charophyceae)

2013 ◽  
Vol 26 (6) ◽  
pp. 475
Author(s):  
Michelle T. Casanova
Keyword(s):  
New Species ◽  
Species Level ◽  
Type Material ◽  
Review Of The Literature ◽  
Comprehensive Review ◽  
The Past

Charophytes in the genus Lamprothamnium exhibit a large amount of diversity, particularly in the examples from Australia, although little of that variation has been recognised at species level in the past. The Australian members of the genus are revised here on the basis of extensive new collections, examination of specimens in herbaria and comprehensive review of the literature and available type material. The existing species Lamprothamnium macropogon (A.Braun) Ophel, L. inflatum (Fil. & G.O.Allen ex Fil.) A.García & Karol and L. heraldii A.García & Casanova are retained, eight new species are described (L. australicum Casanova, L. beilbyae Casanova, L. capitatum Casanova, L. compactum Casanova, L. coorongense Casanova, L. diminutum Casanova, L. macroanthum Casanova and L. stipitatum Casanova) and two taxa variously treated at infraspecific rank in Lychnothamnus are transferred to Lamprothamnium at species rank (L. cockajemmyense Casanova, L. tasmanicum (A.Braun) Casanova). Neither L. papulosum (Wallr.) J.Groves nor L. succinctum (A.Braun) R.D.Wood are confirmed for Australia after examination of the type material of these species. Species are distinguished by the arrangement of the gametangia, morphology of the fertile whorls and characteristics of the oospores. Four of these species are dioecious and nine are monoecious, which supports published conjectures concerning the biogeography of charophyte species (Proctor (1980): J. Phycol. 16, 218–233, doi:10.1111/j.1529-8817.1980.tb03023.x).

scholarly journals Rubus gizellae (Rosaceae), a bramble species from southeastern Europe—identification history, neotypification, and taxonomic notes

Phytotaxa ◽  
2014 ◽  
Vol 167 (1) ◽  
pp. 141
Author(s):  
GERGELY KIRÁLY ◽  
ZOLTÁN BARINA ◽  
BOHUMIL TRÁVNÍČEK
Keyword(s):  
Breeding System ◽  
Species Concept ◽  
Critical Group ◽  
Type Material ◽  
Southeastern Europe ◽  
Modern Species ◽  
Poor Understanding

The genus Rubus Linnaeus (1753: 492) with nearly 700 species in Europe (Kurtto et al. 2010) constitutes an extraordinarily taxonomically critical group within the Rosaceae (Rosoideae). The richness of morphotypes combined with a poor understanding of the breeding system of apomictic brambles has resulted in the description of thousands of entities. Lack of taxonomic standards and an overwhelming number of scientific names has caused nomenclatorial chaos, which mainly has been resolved by the modern species concept developed in Europe in the late 1900s (“Weberian reform”, Weber 1999; Haveman & de Ronde 2012). However, the review of older names is an extended process and re-evaluation of names has often failed due to lack of type material.

A refined circumscription of Notobubon striatum and the resurrection of Dregea collina Ecklon & Zeyher (Apiaceae, Apioideae)

Phytotaxa ◽  
2016 ◽  
Vol 266 (1) ◽  
pp. 27 ◽  
Author(s):  
ANTHONY R. MAGEE ◽  
ODETTE E. CURTIS ◽  
B-E. VAN WYK
Keyword(s):  
Conservation Status ◽  
Leaf Size ◽  
Type Specimen ◽  
Distinct Species ◽  
Critically Endangered ◽  
Type Material ◽  
New Combination ◽  
Careful Examination ◽  
Field Surveys ◽  
Extensive Field

Extensive field surveys of the Critically Endangered Central and Eastern Rûens Shale Renosterveld have uncovered that Notobubon striatum, as currently circumscribed, comprises two distinct species. Upon careful examination of the type material it has become clear that names exist for both species. The type specimen of N. striatum clearly matches the lesser known species, a large shrub, ca. 1 m. tall, with a powerful anise-scent and which is restricted to the banks of seasonal rivers and watercourses in the Central and Eastern Rûens Shale Renosterveld. The second and better known entity, with a wider distribution, corresponds to the type material of Dregea collina Ecklon & Zeyher. As such, a new combination, Notobubon collinum (Ecklon & Zeyher) Magee, is here made to accommodate this taxon, restricted to dry quartz and silcrete patches or outcrops in Eastern Rûens Shale Renosterveld. In their revised circumscriptions N. striatum and N. collinum are readily distinguished by habit, scent, leaf size and division, as well as leaf lobe shape and sepal size. Comprehensive descriptions of both species are provided, together with notes on their ecology and conservation status, and the existing key to the species of Notobubon updated. This brings the number of recognised species in the genus to thirteen.

Taxonomic Re-Examination of the Late Cretaceous Planktonic Foraminiferal Species Archaeoglobigerina Cretacea (d'Orbigny, 1840) and Constraints on Its Morphologic Variability and Stratigraphic Distribution in One of The Type Localities (Kent, SE England)

2021 ◽  
Vol 51 (1) ◽  
pp. 46-63
Author(s):  
Francesca Falzoni ◽  
Annachiara Bartolini
Keyword(s):  
Late Cretaceous ◽  
Species Concept ◽  
Morphological Features ◽  
Single Individual ◽  
Type Specimens ◽  
Foraminiferal Species ◽  
Morphological Differences ◽  
Lower Campanian ◽  
Original Drawings

ABSTRACT Distinctive and taxonomically relevant morphological differences exist between the original drawings of Archaeoglobigerina cretacea illustrated by d'Orbigny (1840) and the lectotype designated by Banner & Blow (1960), particularly regarding the equatorial periphery, which is rounded in the former and double-keeled in the latter specimen. Such differences would suggest that they are not conspecific, but this hypothesis cannot be easily tested because d'Orbigny's drawings likely represent a synthesis of observations on several specimens rather than a single individual and the slide intended to contain the lectotype is empty. In this study, we have re-examined the A. cretacea type specimens deposited in the d'Orbigny collection at the Muséum National d'Histoire Naturelle in Paris and samples from one of the type localities (Kent, SE England) with the aim to reconstruct d'Orbigny's species concept, clarify its morphological features, and better constrain its stratigraphic distribution. Our study suggests that d'Orbigny's concept for A. cretacea was broad and included unkeeled as well as double-keeled morphotypes. However, assemblages from Kent yield common and large-sized specimens conspecific with the lectotype in the middle Santonian-lower Campanian, while morphotypes resembling the drawings of d'Orbigny are absent. Accordingly, five topotype specimens from the lower Campanian of Kent are herein illustrated in order to stabilize the species concept adopted over the last 60 years on the basis of the lectotype drawing and description. All topotypes possess a wide imperforate peripheral band and a moderately to weakly developed double-keeled periphery. Finally, the description of A. cretacea is emended to exclude specimens that do not possess an imperforate peripheral band and to include those that show curved and weakly beaded spiral sutures.

Notes on Carex (Cyperaceae) from China (VII): new synonyms and imperfectly known species

Phytotaxa ◽  
2022 ◽  
Vol 531 (1) ◽  
pp. 54-62
Author(s):  
SHUI-HU JIN ◽  
YI-FEI LU ◽  
WEI-JIE CHEN ◽  
XIAO-FENG JIN
Keyword(s):  
Endemic Species ◽  
Distinct Species ◽  
Literature Survey ◽  
Type Specimens ◽  
New Synonyms

Based on literature survey, examination of type specimens and fieldwork, seven names of Carex are synonymized in the present paper: viz. Carex hypoblephara reduced to a synonym of C. glossostigma; C. dayunshanensis and C. wuyishanensis to synonyms of C. graciliflora; C. dolichogyne to a synonym of C. truncatigluma; C. kwangtoushanica to a synonym of C. tatsiensis; and C. martini to a synonym of C. rhynchophora. The holotype of Carex fokienensis is identified and confirmed at P. The putative endemic species Carex macrosandra (basionym: C. lanceolata var. macrosandra) is synonymized to C. lanceolata, whereas C. cavaleriensis, considered a synonym of the former, is here recognized as a distinct species. A lectotype is designated for C. lanceolata var. macrosandra.

Sign in / Sign up

Export Citation Format

Share Document