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FOC | Family List | FOC Vol. 7 | Capparaceae | Borthwickia

1. Borthwickia trifoliata W. W. Smith, Trans. & Proc. Bot. Soc. Edinburgh. 24: 175. 1912.

节蒴木 jie shuo mu

Shrubs or small trees, 1-6 m tall. Twigs pale green, drying to yellow green, with dense short white pubescence, later glabrescent, fragrant when fresh and after drying. Petiole (3-)5-13(-20) cm; petiolules ca. 1 cm; leaflet blades membranous, abaxially with white short pubescence on veins, adaxially glabrous, midvein abaxially flat and adaxially raised, secondary veins 7-9 on each side of midvein, reticulate veins visible on both surfaces; lateral leaflet blades ovate lanceolate, slightly smaller than terminal one, base asymmetric; terminal leaflet oblong, elliptic, lanceolate, or sometimes obovate-lanceolate, (5-)8-20(-30) × (1.5-)4-10(-16) cm. Inflorescences 8-20 cm, sessile, axis with dense white short pubescence; bracts 1-1.5 cm, deciduous. Flower buds ivory-colored, awl-shaped, terete, ca. 15 × 5-6 mm. Pedicel 1.2-1.5 cm, trichomes like those on axis. Sepals ca. 1 cm, with short white pubescence on both surfaces, tube rupturing on one side at anthesis. Petals white, oblong to spatulate, 1.5-1.8 cm, ± equal, 1/3-1/2 as long as calyx tube, proximally thick, distally membranous, glabrous, margin ciliate. Androgynophore ca. 5 mm; stamens 60-70. Ovary linear, 1-1.5 cm, 4-6-locular, ridged. Capsule moniliform, 6-9 cm × 4-6 mm, base attenuate, apex with a 3-5 mm beak; pericarp drying blackish brown, thin. Seeds 4-6 per capsule, 2-3 mm, base truncate, apex pointed; embryo ca. 2 mm. Fl. Apr-Jun, fr. Aug-Sep.

Wet valleys, forests, ravines; 300-1400 m. S Yunnan [E and N Myanmar].


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