岩生厚壳桂 yan sheng hou ke gui

Trees, up to 15 m tall, to 30 cm d.b.h. Young branchlets slender, terete, ca. 3 mm in diam., striate, sometimes ± angled, densely yellowish brown pubescent. Leaves alternate; petiole 0.5-1 cm, plano-convex, densely yellowish brown pubescent; leaf blade abaxially yellow-green, adaxially green, oblong or elliptic-oblong to ovate, (6.5-)10.5-19 × (3.5-)4.2-8.5 cm, thinly leathery, pinninerved, abaxially sparsely yellowish brown pubescent but densely so along midrib and lateral veins, adaxially yellowish brown pubescent along midrib and otherwise glabrous, midrib and lateral veins very elevated abaxially, impressed adaxially, transverse veins and veinlets reticulate, conspicuous abaxially, inconspicuous adaxially, base broadly cuneate to subrounded and ± unequal on sides, apex obtuse, acute, or shortly acuminate, sometimes incised. Panicles axillary and terminal, 5.5-14 cm, densely yellowish brown pubescent, axillary ones generally few branched and nearly spikelike, terminal or subterminal ones many branched and lax, lower branches up to 4 cm; peduncles 1.5-4.5 cm; bracts and bracteoles linear-subulate, ca. 2 mm, densely yellowish brown pubescent. Pedicels 1-2 mm, densely yellowish brown pubescent. Flowers greenish, ca. 5 mm. Perianth densely yellowish brown pubescent outside but sparsely so inside; perianth tube turbinate or suburceolate, ca. 2.5 mm; perianth lobes oblong-ovate, ca. 2.5 mm, acute. Fertile stamens 9, ca. 2.2 mm; filaments ca. 1.2 mm, villous, those of 3rd whorl each with 2 long-stalked suborbicular glands at base, others glandless; anthers ca. 1 mm, those of 1st and 2nd whorls ovoid-triangular, with introrse cells, those of 3rd whorl ovoid, with extrorse cells. Staminodes sagittate-triangular, ca. 1 mm, shortly stalked. Ovary clavate, including filiform style ca. 3.5 mm; stigma inconspicuous. Fruit purple-black, shiny, subglobose, ca. 1.3 × 1-1.1 cm, glabrous or sparsely puberulent on both ends, ± wrinkled, inconspicuously 12-angulate. Fl. Apr-May, fr. May-Oct.

● Evergreen broad-leaved forests, hillsides, streamsides; (500-) 700-1000 m. Guangxi, S Guizhou, S and SE Yunnan.