Search results for "nomenclature."
showing 10 items of 201 documents
Typification of the name Statice calcarae (Plumbaginaceae), basionym of the threatened endemic Limonium calcarae
2018
Limonium calcarae (basionym Statice calcarae), a rare diploid species endemic to Sicily, is one of the few members of the genus that occurs in the inland areas of the island. According to IUCN criteria, it has been assessed as critically endangered but recent data on its distribution, demography and threats affecting its populations are lacking. A lectotype is designated, preserved at PAL, and isolectotypes have been traced and verified in other European herbaria.
<strong>Nomenclatural types of <em>Hieracium</em> (Asteraceae) species described from the Balearic Islands (Spain) and several rela…
2021
A nomenclatural revision of the genus Hieracium in the Balearic Islands (Spain) is presented and the typification of five names: H. aragonense Scheele, H. balearicum Arvet‑Touvet, H. elisaeanum Arvet-Touvet ex Willkomm, H. majoricanum Arvet-Touvet and H. microscapum Arvet-Touvet, is discussed. The names are lectotypified using specimens preserved at COI, GRM, and P herbaria. Several comments for the names H. cataractarum Arvet-Touvet & Huter and H. praecox subsp. brachypus Freyn in Porta & Rigo are also provided.
<p><strong>Type designation of the Lamarck’s name <em>Buxus balearica</em> (<em>Buxaceae</em>)</strong><…
2019
The Lamarck’s name Buxus balearica is discussed and neotypified from a specimen preserved at MA collected in Mallorca (Balearic Islands, Spain). In addition, the lectotypes of B. longifolia and B. balearica f. granatensis, currently treated as two heterotypic synonyms of B. balearica, are designated from original material preserved at G-BOIS and MA, respectively
BlotBase: a northern blot database.
2008
With the availability of high-throughput gene expression analysis, multiple public expression databases emerged, mostly based on microarray expression data. Although these databases are of significant biomedical value, they do hold significant drawbacks, especially concerning the reliability of single gene expression profiles obtained by microarray data. Simultaneously, reliable data on an individual gene's expression are often published as single northern blots in individual publications. These data were not yet available for high-throughput screening. To reduce the gap between high-throughput expression data and individual highly reliable expression data, we designed a novel database "Blo…
A new classification of the South African endemic family Bruniaceae based on molecular and morphological data
2011
The classification of Bruniaceae is reviewed based on molecular (matK, ITS, rbcL) and morphological data, and the tribes and genera are redefined as monophyletic, morphologically diagnosable lineages. The family is subdivided into three tribes and six genera with 81 accepted species, Linconieae (Linconia), Audouinieae {Audounia [inch Tittmannia', Thamnea [incl. Pseudobaeckea teres]), and Brunieae (Berzelia [inch Brunia p.p.], Staavia [incl. Raspalia staavioides], and Brunia [incl. Nebelia, Pseudobaeckea p.p., Raspalia p.p., Lonchostoma, Mniothamned'). A key for the new classification, a short description of each genus and an updated nomenclature of all the species are provided. Two new trib…
Typification of names inDrabasect.Aizopsis(Cruciferae, Arabideae) based on material from Italy
2013
Names of 20 presumed taxa in Draba sect. Aizopsis, all based on material from Italy, are considered. Full synonymies are provided, and types are designated (for 14 names) or indicated. Most of the taxa are currently considered unworthy of recognition, of which 16 belong to D. aspera sensu lato. However, the question of whether the Sicilian populations might be distinct from the peninsular populations is still unsettled.
On the consensus nomenclature rules for radiopharmaceutical chemistry – Reconsideration of radiochemical conversion
2021
Radiochemical conversion is an important term to be included in the "Consensus nomenclature rules for radiopharmaceutical chemistry". Radiochemical conversion should be used to define reaction efficiency by measuring the transformation of components in a crude reaction mixture at a given time, whereas radiochemical yield is better suited to define the efficiency of an entire reaction process including, for example, separation, isolation, filtration, and formulation. (C) 2020 Elsevier Inc. All rights reserved.
Nomenclatural remarks on Carex sect. Sylvaticae (Cyperaceae): C. laxula and related names
2018
Our taxonomic and nomenclatural research reveals that the name ‘Carex laxula Tineo ex Boott’ (section Sylvaticae) has not been validly published. Consequently, the oldest available name for the species is Carex paui Sennen. A lectotype for the valid name Carex sylvatica var. laxula Tineo ex Guss. is here designated.
Pre-Linnaean illustrations as original material of Linnaean Chara names (Characeae)
2018
Wood (1960) investigated about the types of the four names of Characeae published by Linnaeus (1753) in his Species Plantarum. He focussed on the herbarium specimens forgetting the images mentioned in the protologues. Here we list and present the pre-Linnaean illustrations that have to be considered “original material” (according to the International Code of Nomenclature) for the mentioned names. Chara tomentosa L. - Wood (1960) defined the specimen 1088.1 in the herbarium LINN as “holotype”, actually it is a lectotype (as well reported in The Linnaean Plant Name Typification Project, http://www.nhm.ac.uk/ our-science/data/linnaean-typification) because of the two different figures cited in…
On the measurement of consistent long-term retention factor values in micellar liquid chromatography
2007
Abstract In the field of the quantitative structure–retention and retention–activity relationships (QRAR and QSRR) is crucial to obtain consistent retention factors (k). For this purpose, two unbiased approaches to estimate k are used: (i) the IUPAC approach (based on the extra-column time correction) and (ii) the ‘2-references’ approach (based on the k estimation respect to two prefixed reference k values). Three reference chemicals were selected attending to their retention time, chemical stability and non-ionic character. Consistent retention factor values for these references were estimated for C18 chromatographic columns and Brij35 solutions as mobile phases after statistical analysis.…