Vasilis Teodoridis:
Lauraceae | Cinnamomum
29. Cinnamomum tsoi C. K. Allen; J. Arnold Arbor. 20: 57. 1939.
??? ping tuo gui
Trees; ca. 12 m tall; up to 45 cm d.b.h. Bark gray; scented. Branches terete; glabrous; resin-scented; branchlets somewhat compressed; angled; young part brown tomentose and conspicuously angled. Leaves subopposite; petiole 6-10 mm; sulcate adaxially; sparsely tomentose initially but soon glabrate; leaf blade brownish green and opaque abaxially; brown-green when dry and shiny adaxially; elliptic-lanceolate; 7-11 x 1.5-3.5 cm; leathery; sparsely undulate pubescent initially but soon glabrate abaxially; glabrous adaxially; triplinerved; midrib and basal lateral veins conspicuous abaxially; somewhat elevated adaxially; basal lateral veins with few additional veins outside; transverse veins and veinlets ± conspicuous abaxially; inconspicuous adaxially; base cuneate; margin entire; apex acuminate. Panicle axillary or subterminal; 2-3.5 cm; rachis appressed tomentose. Flowers unknown. Fruit ovoid; ca. 1.5 cm; less than 1 cm wide; apiculate; perianth cup in fruit shallowly cupuliform; ca. 0.5 cm; woody; entire. Fr. Oct-Dec.
? Evergreen broad-leaved forests; below 2400 m. Guangxi (Mengshan); Hainan.
The wood is finely grained; soft; light; and is used for furniture and house construction.