Vasilis Teodoridis:
Lauraceae | Cinnamomum
16. Cinnamomum longepaniculatum (Gamble) N. Chao ex H. W. Li; Acta Phytotax. Sin. 13(4): 48. 1975.
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Cinnamomum inunctum (Nees) Meisner var. longepaniculatum Gamble in Sargent; Pl. Wilson. 2: 69. 1914.
Trees; up to 20 m tall; to 50 cm d.b.h. Bark gray; smooth. Branchlets terete; glabrous; young branchlets slender; ± compressed; glabrous. Buds larger; ovoid; up to 8 mm; bud scales dense; ovate; apiculate; densely gray puberulent. Leaves alternate; petiole greenish red; 2-3.5 cm; plano-convex; glabrous; leaf blade gray-green and opaque abaxially; dark green and shiny adaxially; ovate or elliptic; 6-12 x 3.5-6.5 cm; thinly leathery; glabrous on both surfaces; pinninerved; lateral veins 4 or 5 pairs; basal ones sometimes opposite and becoming triplinerved; lateral veins and midrib elevated on both surfaces; evanescent within margin; axils of lateral veins dome-shaped abaxially; bullate adaxially; transverse veins ± conspicuous on both surfaces; veinlets reticulate and foveolate under lens; base cuneate to subrounded; margin cartilaginous and involute; apex abruptly shortly acuminate to acuminate and sometimes triplinerved; falcate. Panicle axillary; slender; 9-20 cm; branched; branches slender; divaricate; up to 5 cm; dichotomous at top; each branchlet bearing a 3-7-flowered cyme; peduncle slender; 3-10 cm; peduncle and rachis glabrous. Pedicels slender; 2-3 mm; glabrous. Flowers yellowish; scented; ca. 2.5 mm; up to 4 mm in diam. when open. Perianth tube obconical; ca. 1 mm; perianth lobes 6; ovate; ca. 1.5 mm; subequal; acute; glabrous outside; densely white sericeous-villous inside; glandular. Fertile stamens 9; ca. 1.5 mm (of 1st and 2nd whorls) or ca. 1.8 mm (of 3rd whorl); filaments white villous; those of 3rd whorl each with 2 shortly stalked orbicular-reniform glands at base; others glandless; anthers ovate-oblong (of 1st and 2nd whorls) or oblong and slightly shorter than filament (of 3rd whorl); all 4-celled; cells introrse (of 1st and 2nd whorls) or extrorse (of 3rd whorl). Staminodes 3; ca. 1 mm; white villous. Ovary ovoid; ca. 1 mm; glabrous; style slender; ca. 1.5 mm; stigma inconspicuous. Young fruit green; globose; ca. 8 mm in diam.; perianth cup in fruit ca. 5 mm; apex discoid-dilated; up to 4 mm wide. Fl. May-Jun; fr. Jul-Sep.
? Evergreen broad-leaved forests; 600-2000 m. Sichuan.
The branchlets and leaves contain essential oil; the main chemical constituents of the oil are cineole; linalol; and camphor. The fruit kernel contains oil and f