6. Tarenna gracilipes (Hayata) Ohwi, Repert. Spec. Nov. Regni Veg. 36: 57. 1934.
薄叶玉心花 bao ye yu xin hua
Chomelia gracilipes Hayata, Icon. Pl. Formosan. 9: 57. 1920; C. lancifolia Hayata; Tarenna hayataiana Kanehira; T. lancifolia (Hayata) Kanehira & Sasaki.
Shrubs, to 3 m tall; branches slender, strigillose becoming glabrescent and brown with age. Petiole 0.5-1.5 cm, strigillose; leaf blade drying papery, obovate, lanceolate, or narrowly elliptic, 6.5-15 × 2-4.5 cm, glabrous adaxially, sparsely strigillose abaxially at least along veins, base cuneate to acute, apex acute to acuminate; secondary veins 6 or 7 pairs, without domatia; stipules persistent, shortly united around stem, triangular, 1.5-3 mm, strigillose to glabrescent, acute to cuspidate. Inflorescences corymbose, 3-6 × 3-10 cm, trichotomous, strigillose, subsessile to pedunculate; peduncle to 1 cm; bracts narrowly triangular, 0.2-2 mm, acute; pedicels slender, 5-10 mm. Flowers pedicellate. Calyx glabrous to strigillose; hypanthium portion ellipsoid, 1-1.5 mm; limb 1-1.5 mm, lobed for 1/4-1/2; lobes broadly triangular, acute. Corolla white, glabrous outside; tube 4-6 mm, villous at throat; lobes narrowly spatulate-oblong, 9-10 mm, obtuse. Ovules 5 or 6 per cell. Berries ellipsoid, 5-8 mm in diam., glabrous. Fl. May, Jul, fr. Dec.
Forests on mountains; 100-500 m. Taiwan [Japan].
The specimens studied are from the elevations given; W. C. Chen (in FRPS 71(1): 378. 1999) gave the elevational range of this species as up to 2500 m.