Lonicera similis Hemsl.
This species is probably not in cultivation in its typical state, but the following variety has been introduced:
var. delavayi (Franch.) Rehd. L. delavayi Franch. – This variety was sent to Kew in 1907 from France by Maurice de Vilmorin, who had received it from W. China in 1901, and with whom it first flowered three years later. It is an evergreen climber of the L. japonica group. Its leaves are ovate-lanceolate, rounded or slightly heart-shaped at the base, taper-pointed, 2 to 5 in. long, 3⁄4 to 2 in. wide, glabrous above, grey felted beneath; stalk 1⁄6 to 1⁄4 in. long. Flowers sweet-scented, in axillary pairs, and at the end of the shoot forming a kind of panicle. The corolla is pale yellow, and has a very slender cylindrical tube 2 in. long, and a two-lipped apex; the larger lip 3⁄4 in. long, with four short lobes, the smaller one linear; calyx-lobes awl-shaped, edged with hairs. It was originally discovered in Yunnan by the Abbé Delavay, in 1888. It flowers in August. Bot. Mag., t. 8800.