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Bio - Frits are often difficult to identify from photos. Maggi may be right though I am inclined to think F. involucrata. F. messanensis is usually somewhat flared at the mouth of the flower.
Bio - I've always found F. involucrata difficult. I've tried it 3 or 4 times & always lost it. Yours look very good. You don't say whereabouts in France you are but if you are in the south you could see it in the wild; there are said to be good colonies above both Grasse & Menton.