scholarly journals A key for the determination of European species of Eosentomon Berlese, 1909 (Protura, Eosentomata, Eosentomidae)

ZooKeys ◽  
2018 ◽  
Vol 742 ◽  
pp. 1-12 ◽  
Author(s):  
Julia Shrubovych ◽  
Ernest C. Bernard
Keyword(s):  
European Species ◽  
Taxonomic Key ◽  
Maxillary Palps

European species ofEosentomonare examined. A taxonomic key to identification of 61Eosentomonspecies is provided based on body chaetotaxy, shape, and position of sensilla on the foretarsus and shape of sensilla on the maxillary palps. Biogeographically, 13 of the known EuropeanEosentomonspecies are known only from their type localities.

Platyspathius picardi sp. nov., a new European species of the genus Platyspathius Viereck, 1911 (Hymenoptera: Braconidae: Doryctinae)

2015 ◽  
Vol 24 (1) ◽  
pp. 113-120
Author(s):  
S.A. Belokobylskij ◽  
C. Villemant
Keyword(s):  
Palaearctic Species ◽  
European Species ◽  
Western Palaearctic

A new Western Palaearctic species of the genus Platyspathius Viereck, 1911, P. picardi sp. nov. is described and illustrated. This species is the most similar to the Afrotropical P. clymene Nixon, 1941 and the Eastern Palaearctic P. hospitus Belokobylskij et Ku, 2001 with which it is compared. A key for determination of the Palaearctic species of Platyspathius is provided.

scholarly journals The HPLC determination of the content of magnoflorine in epimedium alpinum L

2006 ◽  
Vol 71 (3) ◽  
pp. 251-255 ◽  
Author(s):  
Zvezdana Doslov-Kokorus ◽  
Ivana Ivanovic ◽  
Milena Simic ◽  
Vlatka Vajs ◽  
Nada Kovacevic
Keyword(s):  
Plant Material ◽  
Aerial Part ◽  
Hplc Method ◽  
Underground Part ◽  
Aporphine Alkaloid ◽  
European Species ◽  
Methanolic Extracts ◽  
First Time ◽  
Dose Dependent

The aporphine alkaloid magnoflorine, known as a constituent of Asian Epimedium species, was isolated for the first time from the wild growing European species, Epimedium alpinum L. Identification was done by comparison with literature data. The HPLC method was applied for the determination of the content of the alkaloid in methanolic extracts of plant material. The underground part of E. alpinum contains 1-2 % of magnoflorine, while its content in methanolic extracts was 9.2-11.8 %. The aerial part of the plant contains less alkaloid (0.06-0.12 %), while the magnoflorine content in methanolic extracts of the aerial part was 0.4-0.8 %. Probably, the high content of magnoflorine in the methanolic extracts of underground parts of E. alpinum influences its dose-dependent cytotoxic activity (300 ?g/ml; 39 % survival of cells in an experimental K562 cell culture).

Le Stigmidium lecidellae sp.nov. et remarques sur le genre Stigmidium (champignons lichénicoles non lichénisés, Ascomycètes)

1995 ◽  
Vol 73 (4) ◽  
pp. 662-672 ◽  
Author(s):  
Claude Roux ◽  
Olivier Bricaud ◽  
Didier Le Coeur ◽  
Dagmar Triebel
Keyword(s):  
Cell Wall ◽  
Key Words ◽  
Cell Walls ◽  
Species Level ◽  
Lichenicolous Fungi ◽  
Cresyl Blue ◽  
Taxonomic Key

Stigmidium lecidellae Triebel, Roux et Le Coeur sp.nov., a mild pathogenic lichenicolous fungus growing on the apothecia of Lecidella elaeochroma (Ach.) M. Choisy is described in detail and compared with other species of Stigmidium that grow on the apothecia of the host. The staining of parts of cell walls with cresyl blue is constant at species level and, therefore, is taxonomically relevant in the genus Stigmidium. The dye also allows to distinguish some ultrastructural details of the vegetative hyphal cells, asci, and ascospores. Among the fungi species growing on the apothecia of lichens, three groups are distinguished on the basis of their hamathecial structure, one of which should be excluded from the genus Stigmidium and included in the genus Sphaerellothecium. A key to the determination of the species is presented. Key words: lichenicolous fungi, Stigmidium, Sphaerellothecium, taxonomy, taxonomic key, cell wall, staining reactions, hamathecium.

Contributions to the taxonomy of the European species of Chionea Dalman (Diptera: Limoniidae)

1982 ◽  
Vol 13 (2) ◽  
pp. 193-200 ◽  
Author(s):  
Wieslaw Krzeminski
Keyword(s):  
Male Genitalia ◽  
European Species ◽  
The Status

AbstractThe status of subg. Chionea and subg. Niphadobata is defined on the basis of the morpho-Iogy of the male genitalia and a key for the determination of European species of these two subgenera is given.

Evaluation of diagnostic characters of the Tanytarsus chinyensis group (Diptera: Chironomidae), with description of a new species from Lapland

Zootaxa ◽  
2009 ◽  
Vol 2197 (1) ◽  
pp. 31-42 ◽  
Author(s):  
WOJCIECH GIŁKA ◽  
LAURI PAASIVIRTA
Keyword(s):  
New Species ◽  
Related Species ◽  
Morphological Variability ◽  
Species Group ◽  
Adult Males ◽  
European Species ◽  
Diagnostic Characters ◽  
Finnish Lapland ◽  
A New Species

Tanytarsus salmelai sp. n. collected from the northernmost sites of the Finnish Lapland is described. The new species and two sibling Tanytarsus, T. brundini Lindeberg, 1963 and T. curticornis Kieffer, 1911, are compared, diagnosed and illustrated in detail. Morphological variability and diagnostic characters of the three related species are discussed. An emended diagnosis for adult males of the Tanytarsus chinyensis species group and a key to determination of European species of the group are also provided.

scholarly journals Cell walls as taxonomic markers in Polish species of the genus Odontoschisma (Dum.) Dum. (Hepaticae, Cephaloziaceae)

2014 ◽  
Vol 68 (1) ◽  
pp. 39-45 ◽  
Author(s):  
Jerzy Szweykowski ◽  
Katarzyna Buczkowska
Keyword(s):  
Cell Wall ◽  
Cell Walls ◽  
Polarized Light ◽  
Ruthenium Red ◽  
European Species ◽  
Diagnostic Characters ◽  
Cell Lumen ◽  
Taxonomic Markers ◽  
Stem Structure

To get valuable diagnostic characters, the structure of cell walls was studied with use of two stains (Ruthenium Red -RR and Resorcine Blue - RB) and in polarized light. As far as the stem structure is concerned, European species of the genus <em>Odontoschisma</em> fall into two groups: in <em>Odontoschisma elongatum</em> and in <em>Odontoschisma macounii</em> a thick, frequently completely obscuring cell lumen, "lining layer" is present. It frequently, particularly after staining in RB, detaches from the rest of the cell wall. Such a layer is completely lacking in the two remaining species, viz. <em>O. sphagni</em> and <em>0. denudatum</em>. In polarized light only leaves of <em>O. sphagni</em> show a distinct bright border. The thin cellulose layer (bright in polarized light) embrace the angular thickenings in <em>0. sphagni</em> and <em>0. denudatum</em>, but is entering the inside of these thickenings in the two remaining species. Keys for determination of the four European species based on the staining properties of cell walls and their look in polarized light are provided.

scholarly journals Delimitation of the pupae of the European species of the subgenus Camptochironomus (Diptera, Chironomidae)

1997 ◽  
Vol 8 (4) ◽  
pp. 215-218
Author(s):  
Mauri Hirvenoja
Keyword(s):  
Pupal Exuviae ◽  
European Species

The pupal exuviae of the European species Chironomus (Camptochironomus) tentans (Fabricius) andC. (C.) sp. (pallidivittatus auctt.) (Diptera, Chironomidae), are redescribed. Selected characters are discussed and a tentative key for the delimination of the subgenus Camptochironomus and for the determination of these species is presented. The lectotype designation of C. (C.) tentans is confirmed.

Biting midges of the genus Stilobezzia KIEFFER, 1911 in Poland (Diptera: Ceratopogonidae)

2012 ◽  
Vol 81 (4) ◽  
pp. 365-382
Author(s):  
Alicja Alwin ◽  
Ryszard Szadziewski
Keyword(s):  
Junior Synonym ◽  
Biting Midges ◽  
Central European ◽  
European Species ◽  
Males And Females

ABSTRACT Three species of the genus Stilobezzia KIEFFER, 1911 are reported from Poland: Stilobezzia antennalis (COQUILLETT, 1901), Stilobezzia gracilis (HALIDAY, 1833) and Stilobezziaochracea (WINNERTZ, 1852). They are diagnosed and illustrated. A key for the determination of males and females of Central European species is also provided. Stilobezzia virescens KIEFFER, 1919 is recognized as a new junior synonym of Stilobezzia flavirostris (WINNERTZ, 1852).

Galactic orbits of stars

1966 ◽  
Vol 25 ◽  
pp. 93-97
Author(s):  
Richard Woolley
Keyword(s):  
Globular Cluster ◽  
Potential Field ◽  
High Velocity ◽  
Velocity Vector ◽  
Variable Stars ◽  
The Sun ◽  
Proper Motions ◽  
Rr Lyrae ◽  
The Galaxy

It is now possible to determine proper motions of high-velocity objects in such a way as to obtain with some accuracy the velocity vector relevant to the Sun. If a potential field of the Galaxy is assumed, one can compute an actual orbit. A determination of the velocity of the globular clusterωCentauri has recently been completed at Greenwich, and it is found that the orbit is strongly retrograde in the Galaxy. Similar calculations may be made, though with less certainty, in the case of RR Lyrae variable stars.

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