Vasilis Teodoridis:
4. Lonicera myrtillus J. D. Hooker & Thomson; J. Linn. Soc.; Bot. 2: 168. 1858.
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Subshrubs; deciduous; richly branched; to 3 m tall; leaves; petioles; and bracts (sometimes bracteoles and calyx lobes) often sparsely red-brown glandular ciliolate. Young branches gray-brown or tinged with red-purple; with straight minute coarse hairs or glabrous; sometimes mixed with minute glandular hairs; old branches erect or prostrate; gray-brown or gray-black; winter buds with several pairs of acute scales. Petiole 1?2 mm; glabrous or very rarely with minute coarse hairs; leaf blade highly variable in shape; those of short branches often obovate to obovate-oblong or oblanceolate; sometimes oblong to broadly elliptic or ovate; 0.5?2 cm ? 3?8 mm; papery or thickly so; glabrous; very rarely with scattered short coarse hairs abaxially or only on midvein; often with very small rusty punctuate dots abaxially on old leaves; base cuneate; apex obtuse to rounded and often mucronate or cuspidate. Peduncles axillary on lateral short branches; 1?15 mm; glabrous or minutely coarse hairy; bracts leaflike; often exceeding calyx lobes in length; bracteoles cupular; ca. 1/2 as long as or equaling calyx tube; apex truncate or shallowly dentate; sometimes 2-lobed. Neighboring 2 calyx tubes united above middle or throughout; limb shallowly cupular; lobes triangular or ovate-triangular; often unequal; apex obtuse or sometimes slightly acute. Corolla white; purplish; or purple-red; tubular-campanulate; 6?8 mm; outside glabrous; tube inside puberulous; more densely hairy on throat; lobes orbicular-ovate or suborbicular; 1/4 or 1/2 as long as tube. Stamens and styles included; anthers ca. 1 mm; up to above corolla tube and slightly below throat. Styles shorter; stigmas up to middle of corolla tube or 1/3 of upper part. Fruit purple-red; suborbicular; 4?6 mm in diam.; seeds brownish; ovoid to oblong; compressed; 2?3 mm. Fl. May?Jun(?Jul); fr. Aug?Sep.
Scrub; sparse forests; stony places of river valleys; 2400?4000(?4700) m. SW Sichuan; Xizang; Yunnan [Afghanistan; ??Bhutan; ??Kashmir; N Myanmar].
1a.. Leaves and bracts narrower; obovate or ovate to oblanceolate or lanceolate ...... ?4a. var. myrtillus
1b.. Leaves and bracts wider; suborbicular or orbicular-ovate to broadly elliptic ... ?4b. var. cyclophylla
4a. Lonicera myrtillus var. myrtillus
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Caprifolium parvifolium Kuntze; Lonicera angustifolia Wallich ex de Candolle var. rhododactyla W. W. Smith; L. myrtillus J. D. Hooker & Thomson var. depressa Rehder.
Leaves and bracts narrower; obovate or ovate to oblanceolate or lanceolate.
Scrub; sparse forests; rocky places; 2400?4000(?4700) m. SW Sichuan; Xizang; Yunnan [Afghanistan; N Myanmar].