Looked through my copy of Cappa’s ‘Le Génie Verrier de L’Europe’. It seems there were a number of French firms and decorators, including Clichy, August Jean and Emile Gallé, using similar Japanese inspired designs in the 1870s. Anyway, closest I’ve been able to find to your pitcher is no. 646 on p.374 which is a vase in yellow glass by Eugene Rousseau and made by Baccarat. Although not identical, the roundel with the tree and the branches and blossoms are very similar, though the example in Cappa is a little finer. Similar decor is also seen on no. 647 which is a Baccarat bowl dated 1878-1884. These are just suggestions of course, the decor isn’t a perfect match and we have since found quite a few incorrect attributions in that book.