The recommended merger of The Co-operative Group and United Co-operatives could cause internal wranglings over the use of the Co-operative Group fascia, 'The Co-operative'.

Last week, the two societies agreed to recommend to their members that approval should be given to a merger, which would create a single business with a turnover of £9.4bn, 87,500 staff and 2,321 food stores.

However, question marks remain over whether United will fully adopt The Co-operative Group fascia, launched in 2005 as a unifying fascia for the societies.

Food, bank, pharmacy, funeral and travel businesses have different colour schemes - with food stores trading under a bright green fascia. Although United Co-op has adopted the fascia in recent store refurbishments, it has chosen to keep its own distinctive aqua colouring on its food stores.

Members will make their decision on the merger at meetings in April and May, with the merged group expected to form in late July.