45. Lonicera acuminata Wallich in Roxburgh, Fl. Ind. 2: 176. 1824.
淡红忍冬 dan hong ren dong
Caprifolium fuchsioides (Hemsley) Kuntze; C. henryi (Hemsley) Kuntze; Lonicera acuminata var. depilata P. S. Hsu & H. J. Wang; L. affinis Hooker & Arnott var. angustifolia Hayata; L. alseuosmoides Graebner; L. apodantha Ohwi; L. buddleioides P. S. Hsu & S. C. Cheng; L. fuchsioides Hemsley; L. giraldii Rehder; L. henryi Hemsley; L. henryi var. angustifolia (Hayata) Ohwi; L. henryi var. fulvovillosa Ohwi; L. henryi var. setuligera W. W. Smith; L. henryi var. subcoriacea Rehder; L. henryi var. transarisanensis (Hayata) Yamamoto; L. henryi var. trichosepala Rehder; L. pampaninii H. Léveillé; L. transarisanensis Hayata; L. trichosepala (Rehder) P. S. Hsu.
Climbers, semievergreen. Branches usually becoming hollow. Branches, petioles, and peduncles with dense curved or spreading brown-yellow stiff hairs, sometimes interspersed with long glandular hairs, sometimes glabrescent or becoming glabrous. Leaves occasionally 3-whorled; petiole 2-15 mm; leaf blade ovate or oblong to linear-lanceolate, 2.5-13 × 1.3-4.5 cm, both surfaces brown-yellow hirsute at least on midvein or glabrescent, base rounded to cordate, margin often ciliate, apex acuminate to caudate. Flowers paired, axillary at apices of branchlets, sometimes paniculate; peduncle 0-23 mm, shorter toward apex of branchlets; bracts subulate, occasionally leaflike, 2-4 mm, pubescent and ciliate; bracteoles ovate, ca. 1 mm, glabrous to densely ciliate. Neighboring ovaries free, ca. 2 mm, glabrous, occasionally sparsely hairy, sometimes pruinose. Calyx lobes ovate to narrowly triangular, to 1.5 mm, margin ciliate, sometimes glabrous or glandular. Corolla bilabiate, white tinged red, becoming yellow tinged orange or purple, 1.5-2.4 cm, outside glabrous to densely pubescent; tube funnelform, 9-12 mm, diam. at throat 2-5 mm, inside hirsute, broadly and shallowly gibbous toward base; upper lip irregularly 4-lobed and erect, lobes orbicular-ovate, 1-2 mm; lower lip recurved. Stamens longer or subequaling corolla; filaments hirsute at base. Style exserted, hirsute at least in lower half or glabrous. Berries blue-black and pruinose, ovoid, 6-7 mm in diam.; seeds ellipsoid to oblong, slightly compressed, 4-4.5 mm, shallowly pitted. Fl. May-Jul, fr. Oct-Nov.
Forests, scrub; 100-3200 m. S Anhui, Fujian, SE Gansu, Guangdong, Guangxi, W Guizhou, ?Henan, Hubei, NW Hunan, Jiangxi, S Shaanxi, Sichuan, Taiwan, Xizang, Yunnan, Zhejiang [Bhutan, India, Myanmar, Nepal, Philippines].
This is a highly variable species. Further studies are needed for a satisfactory taxonomic treatment.