Search results for "Taxon"

Additions to terrestrial flora of Tunisia: occurrence and taxonomic notes

2020

We document new records of 11 vascular taxa. Some were found in the wild for the first time and, therefore, are new reports to terrestrial flora of Tunisia. One species, Ranunculus acris L., is reported for the first time for North Africa. Parietaria cretica L. is confirmed for North Africa. Details about the distribution and habitats of the 11 species are provided, and comments on their status and taxonomy are included.

New occurrence of the Ordovician eocrinoid Cardiocystites: Palaeogeographical and palaeoecological implications

2007

10 pages; International audience; Flattened eocrinoids are very rare in the fossil record, notably because of their fragility. Recent investigations in the Anti−Atlas (Morocco) have provided one of the oldest known specimens of Cardiocystites from the Upper Ordovician (early–middle Sandbian). This discovery increases the number of eocrinoid genera known in Morocco. This new material is the fifth published specimen of the genus Cardiocystites. It is well preserved, thus allowing morphological details, such as the location of the anal pyramid and the plane of thecal flattening, to be observed. Palaeoecological reconstruction can be deduced or confirmed from these new details. The respiration …

Diversity in the population of Brassica incana Ten. (Cruciferae) in Sicily

2014

henotipic diversity in Sicilian populations of Brassica incana Ten. (Cruciferae) is here ana- lyzed in comparison with the only one known population of B. raimondoi Sciandrello et al., taxonomic close species recently described from the coastal relief of eastern Sicily. The analysis of diagnostic characters of these two taxa does not reveal significant differences that justify a treatment at species level of the population of B. raimondoi. On this base, the authors deemed to include this taxon in the infraspecific variability of B. incana and consider most appropriate the rank of subspecies. Therefore is here proposed the establishment of the trinomial com- bination B. incana subsp. raimond…

E-BUSINESS MODEL: A CONTENT BASED TAXONOMY OF LITERATURE

2012

The rapid worldwide growth of e-commerce and the resulting great interest on the digital business, caused a proliferation of contributes by academics and practitioners, that identified by different points of view, the fundamental concepts, codes and functions of e-business models. The quantity and the variety of approaches adopted made the concept of e-business model fuzzy and vague, with little consensus about its ontology and definition. The relevance of the topic asserts a claim for the classification of contributions as a first step to a general definition of the concept of e-business model. This paper provides an integrated literature review of contemporary academic writings to ascerta…

(2292) Proposal to conserve the name Palhinhaea against Lepidotis (Lycopodiaceae)

2014

Mystemys giganteus n. gen. et sp.: an enigmatic and rare cricetid from the Terre Rosse M013 fissure filling (Gargano, Southeastern Italy).

2016

Mystemys giganteus is a new strongly endemic cricetid that occurs only in the recently discovered M013 Terre Rosse fissure filling of the Gargano area. This species was presented alongside the other taxa of the M013 fissure in a previous paper and it is here described in detail. Although the material includes only five molars, Mystemys is exceptional for its very large size (length of M1: 6.23 mm) and peculiar morphology. The molars are heavy built with bulged and robust cusps, tubercular crests, narrow valleys, very thick and crenulated enamel. The morphological features of Mystemys are very carefully described, with special focus on the evolutionary modifications induced by isolation. The…

Neotrinia gen. nov. and Pennatherum sect. nov.in Achnatherum (Poaceae: Stipeae)

2019

Stipa splendens (syn. Achnatherum splendens) has been transferred to Neotrinia (Tzvelev) M. Nobis, P. Gudkovaet A. Nowak gen. nov.as N. splendens (Trin.) M. Nobis, P. Gudkova et A. Nowak, based on a comparison of the macromorphology and lemma micromorphology of the Asian representatives of the tribe Stipeae. Lemma epidermal patterns in the examined species are presented and discussed. Additionally, a new section Pennatherum M. Nobis comprising Achnatherum pelliotii, a species recently transferred to Achnatherum from Ptilagrostis is also proposed. This taxon clearly differs from Ptilagrostis by the lemma micromorphology. The species with typical maize-like lemma micromorphological pattern is…

ICTV Virus Taxonomy Profile : Finnlakeviridae

2020

Finnlakeviridae is a family of icosahedral, internal membrane-containing bacterial viruses with circular, single-stranded DNA genomes. The family includes the genus, Finnlakevirus, with the species, Flavobacterium virus FLiP. Flavobacterium phage FLiP was isolated with its Gram-negative host bacterium from a boreal freshwater habitat in Central Finland in 2010. It is the first described single-stranded DNA virus with an internal membrane and shares minimal sequence similarity with other known viruses. The virion organization (pseudo T=21 dextro) and major capsid protein fold (double-β-barrel) resemble those of Pseudoalteromonas phage PM2 (family Corticoviridae), which has a double-stranded …

Taksonomia sprawności słuchania i mówienia w języku polskim jako ojczystym

2021

In their article, Marta Chyb-Winnicka and Anna Tabisz present a taxonomic approach to the teaching of listening and speaking skills in lessons of Polish as a native language. The authors show that the 2017 provisions of the core curriculum for the Polish language in primary schools in Poland put special emphasis on the development of reading and writing skills. For this reason, Chyb-Winnicka and Tabisz underline the importance of teaching the two other skills, i.e., listening and speaking, and argue that taxonomic categories should be used to systematize the knowledge of these skills.

The identity of the tropical African

2016

Abstract Polichne mukonja Griffini, 1908 from Cameroon was hitherto known only from the holotype preserved at the Royal Belgian Institute of Natural Sciences, Brussels. This was probably due to the fact that the genus Polichne Stål, 1874 distributed only in Australia and Papua New Guinea. In view of this distribution, the tropical African species was therefore overlooked in the African literature. The recent discovery of two specimens at the Naturhistorisches Museum, Vienna, now provides us with a better understanding of the identity of this taxon, which is related to the African genus Catoptropteryx Karsch, 1890. Polichne mukonja is here transferred to a new genus Griffinipteryx and both t…