Ascription of a Bourbon of this name and color and time to Avoux & Crozy is looking to me more and more like an error for a Passiflora of this name and color and time which was indeed exhibited and introduced by Avoux & Crozy (see Horticulteur Français, 1855, p. 260). The white-to-blush rose appears to be not to be a Bourbon but rather Oger's HP of this name and color and just a few years later (see for instance Illustration Horticole, vol. 6, 1859, pp. 289-290).