1. Aidia canthioides (Champion ex Bentham) Masamune, Trans. Nat. Hist. Soc. Formosa. 28: 118. 1938.
香楠 xiang nan
Randia canthioides Champion ex Bentham, Hooker’s J. Bot. Kew Gard. Misc. 4: 194. 1852; Aidia canthioides var. lanceolata Masamune; Benkara canthioides (Champion ex Bentham) Ridsdale; Fagerlindia canthioides (Champion ex Bentham) Ridsdale.
Shrubs or trees, 1-12 m tall; branches flattened to subterete, glabrous. Petiole 5-18 mm, glabrous; leaf blade drying papery or thinly leathery, oblong-elliptic, oblong-lanceolate, or lanceolate, 4.5-18.5 × 2-8 cm, both surfaces glabrous, base cuneate to obtuse or shortly rounded, sometimes inequilateral, apex acute to acuminate; secondary veins 3-7 pairs, in abaxial axils usually with foveolate and/or pilosulous domatia; stipules deciduous or sometimes persistent on distalmost nodes, broadly triangular, 3-8 mm, glabrous, apex acute or acuminate. Inflorescences fasciculate or shortly congested-monochasial and subsessile, 2-3 × 3-5 cm, several flowered, glabrescent; bracts ovate, often fused in pairs, 0.5-1 mm, acute to obtuse; pedicels 5-17 mm. Calyx densely to sparsely strigillose; ovary portion obconic, 1-1.5 mm; limb with basal tubular portion 3-5 mm; lobes 5, triangular to deltoid, 0.5-2 mm, acute. Corolla white or yellowish white, glabrous outside; tube 8-9 mm; lobes 5, narrowly spatulate-oblong, 4-7 mm, acute. Berry 5-8 mm in diam., sparsely strigillose or glabrous; seeds 6 or 7, flattened, angled, 2-3 mm. Fl. Apr-Jun, fr. May-Feb.
Thickets or forests on hills, on mountain slopes, or at streamsides in valleys; below 100-1500 m. Fujian, Guangdong, Guangxi, Hainan, Taiwan, Yunnan [Japan, Vietnam].
This species was excluded from Aidia and treated as Fagerlindia canthioides by Ridsdale (Blumea 41: 176. 1996), then as Benkara canthioides by Ridsdale (Reinwardtia 12: 289. 2008). This species is here included in Aidia because of its apparent lack of lateral short shoots or spines, inflorescences not terminal on developed stems, and apparently bisexual flowers.