Scarlets flanker John Barclay's hopes of ending his two-year Scotland exile have been given a major boost after he was named in Vern Cotter's 46-man World Cup training squad.

The 28-year-old has been overlooked for successive RBS 6 Nations tournaments despite his impressive form for his Welsh region.

Also called up is South African-born William Nel as well as uncapped forwards Allan Dell and Stuart McInally of Edinburgh, and Glasgow's Hugh Blake.

Wings Damien Hoyland and Rory Hughes, who are among those hoping to make their first international starts, are included too.

Josh Strauss - another South African - is included despite the fact he becomes eligible just four days before the Dark Blues' first match against Japan on 23 September, while Mike Cusack is named after a two-year injury lay-off.

And Glasgow back-rower Ryan Wilson will hope to put his four-month suspension behind him following a court conviction for assault.

Noticeable absentees include former skipper Kelly Brown, number eight Johnnie Beattie and Dougie Fife, the scorer of the Scots' opening try in this year's RBS 6 Nations against France in Paris.

Cotter will gather his players together at Ravenscraig Regional Sports Facility on 15 June for a range of strength and conditioning tests before travelling to Font Romeu in the French Pyrenees for a short training camp at the end of the month.

He will then have to reduce his squad to just 31 ahead of the tournament in England. Players from Guinness Pro12 champions Glasgow Warriors make up almost half the squad with 22 representatives, while European Challenge Cup finalists Edinburgh Rugby providing 12.

"We're working hard to be as cohesive as possible and push the limits of how far we can go" - Vern Cotter

Cotter, said: "The selection process was made easier by some good performances from a number of players, especially in the latter part of the season.

"Hopefully the confidence the players have gained from their successes will filter through into the rest of Scottish rugby. We'll need that for this campaign.

"Flexibility and being able to adapt are among our key themes as we move towards the final 31 and the Rugby World Cup. This is not a firmly-fixed squad, it's a living document. There are a number of players we've spoken to who will be working on things with their clubs and looking for form, and may well feature in our warm-up games as a chance to push for selection.

"We're working hard to be as cohesive as possible and push the limits of how far we can go."

Scotland will play four matches in the build up to the finals, with trips to Ireland and France scheduled from mid-August before home and away clashes with Italy.

Scotland training squad for World Cup: Backs: Mark Bennett (Glasgow Warriors), Chris Cusiter (Sale Sharks), Alex Dunbar (Glasgow Warriors), Sam Hidalgo-Clyne (Edinburgh Rugby), Stuart Hogg (Glasgow Warriors), Peter Horne (Glasgow Warriors), Damien Hoyland (Edinburgh Rugby), Rory Hughes (Glasgow Warriors), Ruaridh Jackson (Wasps), Greig Laidlaw (Gloucester), Sean Lamont (Glasgow Warriors), Sean Maitland (London Irish), Henry Pyrgos (Glasgow Warriors), Finn Russell (Glasgow Warriors), Matt Scott (Edinburgh Rugby), Tommy Seymour (Glasgow Warriors), Duncan Taylor (Saracens), Greig Tonks (Edinburgh Rugby), Richie Vernon (Glasgow Warriors), Tim Visser (Harlequins), Duncan Weir (Glasgow Warriors).

Forwards: Adam Ashe (Glasgow Warriors), John Barclay (Scarlets), Hugh Blake (Glasgow Warriors), Fraser Brown (Glasgow Warriors), Blair Cowan (London Irish), Mike Cusack (Glasgow Warriors), Allan Dell (Edinburgh Rugby), David Denton (Edinburgh Rugby), Alasdair Dickinson (Edinburgh Rugby), Ross Ford (Edinburgh Rugby), Grant Gilchrist (Edinburgh Rugby), Ryan Grant (Glasgow Warriors), Jonny Gray (Glasgow Warriors), Richie Gray (Castres), Jim Hamilton (Saracens), Robert Harley (Glasgow Warriors), Stuart McInally (Edinburgh Rugby), Willem Nel (Edinburgh Rugby), Gordon Reid (Glasgow Warriors), Josh Strauss (Glasgow Warriors), Alasdair Strokosch (Perpignan), Tim Swinson (Glasgow Warriors), Jon Welsh (Newcastle Falcons), Hamish Watson (Edinburgh Rugby), Ryan Wilson (Glasgow Warriors).