A small group of hybrids between D. gracilis and D. parviflora raised by Lemoine of Nancy. The typical form of the cross – ‘Lemoinei’ – was raised in 1891. It is an erect shrub up to 7 or 8 ft high, with glabrous young shoots, and lanceolate leaves, 11⁄2 to 4 in. long, 1⁄2 to 11⁄4 in. wide, sharply toothed, long-pointed; the upper surface has minute star-like hairs, beneath it is almost glabrous. Flowers pure white, 5⁄8 in. across, produced in erect corymbs. For forcing into flower early this is a very valuable shrub, more beautiful and effective than gracilis, and in that state was very popular at spring flower shows. Out-of-doors, at least in low-lying localities, it rarely has a chance to do itself justice, owing to the destruction of its flower-buds by unseasonable frosts. Its natural flowering time is May and June. See further under D. amurensis.
cv. ‘Avalanche’. – Flowers white, very freely borne in small clusters on arching branches; leaves small, dark green. This is thought to be a back-cross between D. gracilis and ‘Lemoinei’ but the exact parentage is unknown. Rehder considers it to be a form of D. × maliflora (see below).
cv. ‘Boule de neige’. – Habit dwarf and compact; flowers large, pure white, in dense, rounded clusters.
D. × maliflora Rehd. – This name is founded on the deutzia ‘Fleur de Pommier’ raised by Lemoine by crossing D. × lemoinei with D. purpurascens. It is a small shrub bearing clusters of twenty to thirty flowers which are pink fading to white, with frilled margins.