scholarly journals Microscopic research of shoots of the Salix cinerea L. of Ukrainian flora

2019 ◽  
Vol 0 (3) ◽  
Author(s):  
N. V. Borodina ◽  
V. M. Kovalov ◽  
O. M. Koshovyi ◽  
O. V. Hamulia
Keyword(s):  
Salix Cinerea

Sphegigaster hexomyzaeVikberg, 1983, (Hymenoptera: Chalcidoidea, Pteromalidae) new to the British Isles with notes on the parasitoids of gall-forming Agromyzidae (Diptera) in the genus Hexomyza

2020 ◽  
Vol 156 (1) ◽  
pp. 25-28
Author(s):  
H. Charles J. Godfray ◽  
Barry P. Warrington
Keyword(s):  
British Isles ◽  
Salix Cinerea

Sphegigaster hexomyzae Vikberg (Pteromalidae) is added to the British list from material reared from galls of Hexomyza simplicoides Hendel (Agromyzidae) on Salix cinerea in Yorkshire. Literature records of parasitoids from gall-forming Hexomyza are reviewed.

scholarly journals The host plants of Euura cinereae Kopelke, 1996 and E. auritae Kopelke, 2000 (Hymenoptera: Tenthredinidae)

2002 ◽  
Vol 13 (3) ◽  
Author(s):  
Jens-Peter Kopelke
Keyword(s):  
Host Plants ◽  
Multiple Choice ◽  
Distinct Species ◽  
Convincing Evidence ◽  
Distribution Area ◽  
Type Specimens ◽  
Morphological Criteria ◽  
Salix Cinerea ◽  
Southern Norway

Euura auritae and Euura cinereae are distinct species making spindle-shaped stem galls on Salix aurita and on Salix cinerea, respectively. Different morphological criteria and no-choice as well as multiple choice oviposition experiments have proved E. auritae and E. cinereae to be distinct species. Euura cinereae on S. cinerea is distributed at least over Southern Norway, Germany and Austria, but within its distribution area it may occur patchily. A recent paper doubted that the type specimens of E. cinereae had been reared from S. cinerea, but rather that they had been reared from S. aurita. However, as discussed in the present paper, they give no convincing evidence that E. cinereae occurs on S. aurita rather than on S. cinerea in Finland.

scholarly journals On the taxonomy and host plants of North European species of Eupontania (Hymenoptera: Tenthredinidae: Nematinae).

2006 ◽  
Vol 56 (2) ◽  
pp. 239-268
Author(s):  
Veli Vikberg ◽  
Alexej Glebovitsch Zinovjev
Keyword(s):  
Host Plants ◽  
European Species ◽  
Salix Cinerea ◽  
Salix Myrsinifolia

In Europa umfasst Eupontania die vesicator-, viminalis-, aquilonis- und crassipes-Artengruppen. Aus Nordeuropa werden 13 Arten der Eupontania-viminalis-Gruppe aufgeführt. E. brevicornis (Förster, 1854), sp. rev. und comb. n. (= Nematus congruens Förster, 1854, syn. n., Pontania carpentieri Konow, 1907, syn. n., Pontania pedunculi auct., nec Hartig), die Gallen an Salix cinerea L. hervorruft, wird in Finnland nachgewiesen und mit der eng verwandten E. arcticornis (Konow, 1904) verglichen, die Gallen an Salix phylicifolia L. bildet. Die Taxonomie und die Wirtspflanzen von E. pedunculi (Hartig, 1837) (= Nematus bellus Zaddach, 1876; Pontania gallarum auct. nec. Hartig) und E. gallarum (Hartig, 1837) (= N. aestivus Thomson, 1863, syn. n.; Pontania varia Kopelke, 1991, syn. n.; Pontania norvegica Kopelke, 1991, syn. n.) werden kurz diskutiert. E. pedunculi wird als Art betrachtet, die Gallen an verschiedenen Arten der Sektion Vetrix hervorruft, nicht aber an S. cinerea: Salix aurita L., S. caprea L., S. starkeana ssp. starkeana Willd. und ssp. cinerascens (Wahlenb.) Hultén (= S. bebbiana Sarg.). Der Status von E. myrtilloidica (Kopelke, 1991), die an S. myrtilloides L. in Finnland nachgewiesen wurde, bleibt unsicher. Die Wirtspflanze von E. gallarum ist Salix myrsinifolia Salisb. einschliesslich der ssp. borealis (Fr.) Hyl. Lectotypen werden festgelegt für Pontania arcticornis, P. phylicifoliae Forsius, 1920, P. viminalis var. hepatimaculae Malaise, 1920, Nematus brevicornis, P. samolad Malaise, 1920 (Wirtspflanze: S. lapponum L.), und P. pustulator Forsius, 1923. Für Nematus gallarum wird ein Neotypus aus Schweden, Uppland, festgelegt. E. acutifoliae baltica ssp. n. wird beschrieben aus Litauen, Estland, Russland, und Finnland, und E. collactanea rosmarinifoliae ssp. n. aus Finnland und Russland. Für 20 aus Nordeuropa beschriebene Eupontania-Arten werden die Wirtspflanzen aufgelistet, E. pustulator von S. pulchra, zum ersten Mal.StichwörterTenthredinidae, Pontania, Eupontania, sawflies, hostplants, Salix.Nomenklatorische Handlungenarcticornis (Konow, 1904) (Eupontania), Lectotype described as Pontania arcticornisbrevicornis (Förster, 1854) (Eupontania), Lectotype; spec. revocata described as Nematus brevicornisgallarum (Hartig, 1837) (Eupontania), Neotype described as Nematus gallarumpustulator (Forsius, 1923) (Eupontania), Lectotype described as Pontania pustulatorsamolad (Malaise, 1920) (Eupontania), Lectotype described as Pontania samoladbaltica Vikberg & Sinovjev, 2006 (Eupontania acutifoliae), sspec. n.rosmarinifoliae Vikberg & Sinovjev, 2006 (Eupontania collactanea), sspec. n.congruens Förster, 1854 (Nematus), syn. n. of Eupontania brevicornis (Förster, 1854)carpentieri Konow, 1907 (Pontania), syn. n. of Eupontania brevicornis (Förster, 1854)phylicifoliae Forsius, 1920 (Pontania), Lectotype now a syn. of Eupontania arcticornis (Konow, 1904); Lectotype design. by Kopelke (1991) was invalidhepatimaculae Malaise, 1920 (Pontania vinimalis var.), Lectotype now a synonym of Eupontania arcticornis (Konow, 1904)

Field test of resource regulation by the bud-galling sawfly, Euura mucronata, on Salix cinerea

Ecography ◽  
1988 ◽  
Vol 11 (2) ◽  
pp. 136-139
Author(s):  
Heikki Roininen ◽  
Peter W. Price ◽  
Jorma Tahvanainen
Keyword(s):  
Field Test ◽  
Salix Cinerea

Grazing and fire in two subalpine peatlands

2007 ◽  
Vol 55 (1) ◽  
pp. 42 ◽  
Author(s):  
Keith L. McDougall
Keyword(s):  
Exotic Species ◽  
Native Species ◽  
Floristic Composition ◽  
High Plains ◽  
Composition And Structure ◽  
North Eastern ◽  
Salix Cinerea ◽  
Burnt Areas

The floristic composition and structure of peatland vegetation in adjoining subalpine catchments of the Bogong High Plains (north-eastern Victoria) were monitored between 1979 and 2006. Grazing by cattle had been excluded from one catchment since 1946, when it was fenced. Peatland vegetation in both catchments was partially burnt in a wildfire in 2003. Between 1979 and 1999, in the ungrazed peatland, the cover of Sphagnum cristatum Hampe and Baeckea gunniana Schauer increased and the cover of pools decreased, whereas in the grazed peatland the cover of B. gunniana and Epacris paludosa R.Br. decreased and the cover of Empodisma minus (Hook.f.) L.A.S.Johnson & D.F.Cutler increased. The cover of all recorded species decreased following a fire in 2003. Between 2004 and 2006, a significant increase in cover was detected in two of eight species measured in burnt areas. In burnt areas, the number of native species per quadrat increased in the grazed peatland and the numbers of exotic species per quadrat increased in both peatlands over that period. By 2006, the peatlands had largely recovered floristically from the 2003 fires but it is likely to be decades before the cover of S. cristatum and Richea continentis B.L.Burtt. reaches pre-fire levels. Control of several exotic species that established after the fire (especially Salix cinerea L. and Juncus spp.) may be required.

British willows; some hybrids and some problems

1992 ◽  
Vol 98 ◽  
pp. 13-20 ◽  
Author(s):  
R. D. Meikle
Keyword(s):  
Hybrid Origin ◽  
Widespread Occurrence ◽  
Salix Fragilis ◽  
Salix Cinerea ◽  
Salix Myrsinifolia

SynopsisThe paper deals with three problem areas in the taxonomy of British willows: (1) the widespread occurrence in Perthshire and neighbouring counties of an intermediate between Salix myrsinifolia Salisb. and S. phylicifolia L., apparently of hybrid origin, though growing in an area where typical S. phylicifolia has yet to be found; (2) the complex taxonomy of the British Sallows, where two common aggregate species, Salix cinerea L. and S. caprea L., are each represented by two segregates; a third, S. aurita L., may also comprise more than one segregate; all three species interbreed, as do the segregates within each aggregate; (3) the disputed identity of the Crack Willow, Salix fragilis L., and its nomenclatural implications.

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