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This genus is accepted, and its native range is China.
A specimen from Kew's Herbarium

[KBu]

Landrein, S., Farjon, A. (2020). A monograph of Caprifoliaceae: Linnaeeae. Kew Bulletin 75: 1 doi:10.1007/s12225-018-9762-5

Distribution
China. Dipelta elegans is the most restricted and localised species, occurring only in northern Sichuan and the adjacent area in Gansu. Dipelta floribunda grows in the Qinling range, Daba range and further south, reaching isolated mountain ranges in Guizhou and southern Yunnan. Finally, D. yunnanensis and D. ventricosa occur on the western side of the Sichuan basin and in Yunnan, including NW Yunnan and Tibet (areas where Abelia cannot be found)
Ecology
Dipelta species are less localised than species in the genus Abelia and usually occur in large populations, at higher elevations and in more wooded habitats. The distribution patterns of these two genera are nevertheless very similar, with the deep valleys of the Qinghai Tibetan Plateau (QTP) explaining the diversification and speciation in the genus. Dipelta is a typical genus of the Sino-Japanese Floristic Region (SJFR) (Qiu et al. 2011). The QTP is the highest and largest plateau in the world and is regarded as a biodiversity hotspot
Morphology Branches
Young branches glabrous or densely tomentose
Morphology General Bark
Bark brownish grey, longitudinally and irregularly fissured, flaking into long strips on old branches
Morphology General Buds
Buds with several pairs of glabrescent scales
Morphology General Habit
Deciduous shrubs or small trees with erect to decumbent branches to 6 m tall
Morphology Leaves
Leaf blade abaxially glabrescent or pubescent and ciliate on veins and margins, adaxially glabrous or sparsely hairy; margin entire, or sometimes remotely 2 or 3 dentate Leaves ovate, elliptic or lanceolate, 2 – 13.5 cm long, 1.2 – 7 cm wide, acute, long acuminate or caudate at the apex, obtuse, or cuneate at base
Morphology Leaves Petiole
Petioles 6 – 14 mm long
Morphology Reproductive morphology Flowers
Flowers fragrant, white to pink; single, peduncle 10 – 25 mm long and with a pair of narrow lanceolate bracts towards the middle
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 4, didynamous, inserted in lower third of the corolla tube and nearly as long as the corolla tube
Morphology Reproductive morphology Flowers Androecium Stamens Anthers
Anthers oblong, 2 – 3 mm long, yellowish/white
Morphology Reproductive morphology Flowers Androecium Stamens Filaments
Filaments sparsely pilose at base and deflexed towards the dorsal side of the corolla
Morphology Reproductive morphology Flowers Calyx
Calyx cupular with fused sepals or 5-lobed to base with linear-lanceolate sepals
Morphology Reproductive morphology Flowers Corolla
Corolla bilabiate, narrowly cylindrical at base flaring and campanulate in upper part, infundibuliform-tubular or tubular-cylindrical with an inflated base, 20 – 40 mm long; lower lip hirsute bearded with reticulate orange-yellow markings Corolla lobes erect to spreading Base of corolla tube saccate and containing the nectary, bulge inserted in the calyx or protruding inbetween the abaxial sepals
Morphology Reproductive morphology Flowers Epicalyx
Lateral episepals accrescent, 15 – 25 mm in diameter, reniform or shield-like, dry and papery with conspicuous reticulate venation Epicalyx of 4 lobes, lateral episepals peltate or reniform and accrescent even during anthesis, finally covering the calyx when corolla falls Abaxial and adaxial episepals reduced, not peltate and often folded in between the two flattened lateral ones
Morphology Reproductive morphology Flowers Gynoecium
Style 20 – 40 mm, filiform, as long as the corolla tube or slightly exserted, glabrous or hairy below, stigmas capitate, white and papillose
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary tetralocular, ventral and dorsal locules with numerous biseriate apical sterile ovules, lateral locules with one apical fertile ovule Ovary obovate, longitudinally ribbed and dorsi-ventrally compressed, with a short apical sterile neck
Morphology Reproductive morphology Fruits
Fruit a 2-seeded achene enclosed in the two large winged lateral episepals
Morphology Reproductive morphology Inflorescences
Inflorescences few-flowered cymes forming at the end of short shoots, and along the previous year’s branches Inflorescences often paired at the apex of the branches
Morphology Reproductive morphology Seeds
Seeds globose.
Note
Dipelta meaning two shields, describing the fruit of D. floribunda enclosed in two peltate-winged episepals.
Type
Dipelta floribunda Maxim.

Native to:

China North-Central, China South-Central, China Southeast, Myanmar, Tibet

Dipelta Maxim. appears in other Kew resources:

First published in Bull. Acad. Imp. Sci. Saint-Pétersbourg, sér. 3, 24: 50 (1877)

Accepted by

  • Govaerts, R. (2000). World Checklist of Seed Plants Database in ACCESS D: 1-30141.

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Bulletin
Kew Bulletin
http://creativecommons.org/licenses/by-nc-sa/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0