Search results for "Axon"

2006

The first palaeontological study of the locality of Quibas dates from the end of the 1990ties (Montoya et al., 1999), describing over 60 vertebrate taxa. One of these was a caprine assigned to Capra sp. aff. Capra alba. Recent excavations yielded new remains of this taxon, which permits a more profound study of its affinities and an assignation to Capra alba, without reservation. This assignation is based on the morphological and metrical comparison of the skulls, horn cores, dentition and metapodials from Quibas with those of Capra alba from Venta Micena (Orce Granada).

Orthotrichum pilosissimum (Orthotrichaceae), a new moss from arid areas of Nevada with unique axillary hairs

2011

Abstract Orthotrichum pilosissimum is described from herbarium material and recently collected specimens in the state of Nevada. Its specific epithet refers to the diagnostic hyper-developed axillary hairs, which are frequently longer than 1 mm, multiseriate and branched, covering most of the stems surface and sometimes protruding from the foliose shoots. These hairs are not only unique in the genus but also among mosses, providing a reliable diagnostic character for the new taxon. Additional gametophytic and sporophytic characters that contribute to its taxonomic delimitation are also given.

Hieracium hypochoeroidessubsp.peracutisquamum(Asteraceae), a New Taxon from Basilicata, Southern Italy

2015

Hieracium hypochoeroides subsp. peracutisquamum Di Grist., Gottschl. & Raimondo, a new taxon endemic to Basilicata (southern Italy), is described and illustrated. It is confined to the carbonate rocks of Monte della Madonna di Viggiano (Lucanian Apennine, SW Basilicata). Information on its habitat ecology and taxonomic relationships is provided.

Taxonomic remarks onHieracium sartorianumvar.lucanicum(Asteraceae), a little known taxon of Cilento (Campania, southern Italy)

2015

Hieracium sartorianum var. lucanicum, a little known taxon described from Mt Sacro (Parco Nazionale del Cilento e Vallo di Diano, Prov. of Salerno, Campania, Italy), is reexamined. As a result it is reclassified as a subspecies to H. hypochoeroides. A new combination and lectotypification are made and a detailed description is given.

A taxonomic nightmare comes true: phylogeny and biogeography of glassworts (Salicornia L., Chenopodiaceae)

2007

In this study we analysed ETS sequence data of 164 accessions belonging to 31 taxa of Salicornia, a widespread, hygrohalophytic genus of succulent, annual herbs of Chenopodiaceae subfam. Salicornioideae, to investigate phylogenetic and biogeographical patterns and hypothesise about the processes that shaped them. Furthermore, our aim was to understand the reasons for the notorious taxonomic difficulties in Salicornia. Salicornia probably originated during the Miocene somewhere between the Mediterranean and Central Asia from within the perennial Sarcocornia and started to diversify during Late Pliocene/Early Pleistocene. The climatic deterioration and landscape-evolution caused by orogenetic…

Biomonitoring with cryptogams near the power station of la Robla (Leon, Spain)

2007

The present monitoring study was undertaken to analyze the impact of atmospheric pollution on the lichens found near a power station in northern Spain. Data from 565 releves gathered on 113 sites were analyzed. In areas near the power station the lichen species belong to the Xanthorion community. In areas away from the power station and that are not under the influence of dominant winds, the lichenic diversity increases and the species present belong to the Parmelion community. In intermediate areas between the two, there is a great increase in lichen diversity, in these areas there is a replacement of the species that typically belong to the Xanthorion community, by species typical of the …

Stigma morphology inAylosterasubg.Mediolobivia(Cactaceae) and its importance for systematic investigation

2013

The stigma of 31 taxa of Aylostera (Cactaceae) was studied using environmental scanning electron microscopy. Seven stigma types could be defined, based on the degree of fusion of the stigmatic lobes and, when these are completely separated (types I and II), their orientation. Four types (types IV, V, VI and VII) are present only in Aylostera subg. Mediolobivia, two of which (types IV and VII) are species-specific. Stigma morphology was found to be a good diagnostic character in Aylostera subg. Mediolobivia, allowing in some cases to distinguish species that had been confused previously. The stigmatic types here defined seem apt to characterize natural groups within the subgenus and are usef…

Reviergesänge und Speziesdifferenzierung in der Klappergrasmücken-GruppeSylvia [curruca]

1997

Territorial songs of the nearly trans-PalaearcticSylvia curruca complex recorded in various area parts of the three major taxa groups (curruca, althaea, minula) are analyzed. Playback experiments substantiate the differences between the three groups. In view of their locally sympatric distribution and distinct territorial songs thecurruca, althaea andminula groups are considered different species of superspeciesSylvia [curruca].

Allium Achaium Boiss. (Alliaceae), a Critical Species of Greek Flora

2011

Abstract Bogdanovic, S., C. Brullo, S. Brullo, G. Giusso del Galdo, C. M. Musarella & C. Salmeri (2011). Allium achaium Boiss. (Alliaceae), a critical species of Greek flora. Candollea 66: 57–64. In English, English and French abstracts. Allium achaium Boiss. (Alliaceae), a critical and misappreciated species of Greek flora is investigated from a taxonomic point of view and illustrated. It belongs to sect. Codonoprasum Rchb. and shows close relationships with the taxa of the Allium stamineum Boiss. group. Karyology, ecology and distribution of that species are examined.

The armoured mite fauna (Acari: Oribatida) from a long-term study in the Scots pine forest of the Northern Vidzeme Biosphere Reserve, Latvia

2014

In 1992-2012, a considerable amount of soil micro-arthropods has been collected annually as a part of a project of the National Long-Term Ecological Research Network of Latvia at the Mazsalaca Scots Pine forest sites of the North Vidzeme Biosphere Reserve. Until now, the data on oribatid species have not been published. This paper presents a list of oribatid species collected during 21 years of ongoing research in three pine stands of different age. The faunistic records refer to 84 species (including 17 species new to the fauna of Latvia), 1 subspecies, 1 form, 5 morphospecies and 18 unidentified taxa. The most dominant and most frequent oribatid species are Oppiella (Oppiella) nova, Tecto…