泰国木莲 tai guo mu lian

Magnolia garrettii (Craib) V. S. Kumar.

Trees, to 20 m tall, to 1.2 m d.b.h. Young twigs, stipules, petioles, and peduncles densely brown pubescent with short to long and straight to slightly undulate trichomes. Twigs brown, 5-8 mm in diam. Stipules adnate to petiole, scar 1.8-2.5 cm. Petiole 3-5 cm, thickened toward base; leaf blade elliptic to obovate, 18-34.5 × 8-12 cm, leathery, abaxially densely coated with minute (hardly visible even with hand lens) brownish trichomes, secondary veins 12-21 on each side of midvein and abaxially prominently elevated, reticulate veins coarse and prominent on both surfaces, base cuneate to rounded, apex shortly acuminate. Brachyblasts 1.5-4 × 0.6-0.9 cm. Flower buds elongate, 6-6.5 × 2.2-2.5 cm. Tepals 9, purple to violet red, thick and succulent; outer 3 tepals 6-6.5 × ca. 3 cm; inner tepals slightly smaller. Stamens 1.1-1.5 cm; connective appendage triangular, ca. 3 mm. Gynoecium ovoid to narrowly ovoid, ca. 3 × 2 cm, glabrous; carpels 66-68; styles glabrous, 2-3 mm. Fruit broadly ovoid-oblong, 4-9 × 3.5-6 cm; scar on torus of perianth and stamens 10-12 × ca. 9 mm; dorsal face of mature carpels 2.5-3.2 cm for basal ones and 1-2 cm for apical ones, apex shortly beaked. Seeds ellipsoid to obovoid, 9-14 × 5-8 mm, irregularly shaped.

Evergreen broad-leaved forests; 1300-1900 m. S Yunnan [N Thailand, Vietnam].