Dimorphocalyx glabellus
Thwaites, Enum. Pl. Zeyl. 278. 1861; Hook.f., Fl. Brit. India 5:
403. 1887.
Trees or sometimes scandent shrubs, dioecious or sometimes monoecious, 3 – 6 (- 10) m
tall, nearly glabrous. Leaves elliptic, oblong to obovate or oblanceolate, rounded, obtuse to
acute at base, shallowly glandular-crenulate (particularly in young leaves), crenate-serrate to entire along margins, acuminate to acute or often obtuse to rounded at apex, 4.5 - 19 x 2 - 7 cm,
thinly coriaceous to chartaceous; lateral nerves 6 - 14 pairs; petioles 2 - 20 mm long. Male
inflorescences axillary, 1-flowered or umbellately 2 or 3-flowered or few-flowered cymes, rarely
narrowly thyrsiform, up to 4 cm long, often with up to 5 cm long peduncle; pedicels 2 - 6 mm
long; calyx lobes deltoid or triangular, 0.5 - 1.5 mm long; petals 5, oblong, obovate to spathulate,
5 - 6 x 2 - 2.5 mm; disc glands 5, transversely oblong to obcordate, 0.3 - 1 x 0.5 - 1 mm; stamens
5 - 6 + 6 - 10 (rarely 11 - 16), the outer filaments 1 - 4 mm long, free, the inner united into a short
3 - 7 mm long column; anthers ovoid to ellipsoid, 0.5 - 1.2 mm long. Female inflorescences
axillary and terminal, single or few-flowered, umbellate or up to 4 cm long racemes, often with 1
- 3 cm long peduncles; bracts triangular to linear, 1.5 - 7 x ca 0.5 mm; pedicels 3 - 10 mm long,
puberulous; sepals 4 or 5, spathulate to obovate, rounded or emarginate and glandular-pitted at
apex, often accrescent; petals 4 or 5, elliptic or broadly obovate, 5 - 11 x 2.5 - 7 mm; disc cupularannular
or forming a ring, entire or crenate, 0.6 - 1 x 3 - 4.5 mm; ovary subglobose, 2 - 4 x 2.5 - 5
mm, tomentellous; styles 3 - 7 mm long, free and bifid above. Fruits subglobose, tricoccous, 7
- 15 x 10 - 18 mm, appressed hirsute; pedicels up to 12 mm long; accrescent sepals 0.5 - 3.3 x 0.3
- 1.8 cm; seeds ellipsoid, obovoid or subtrigonous or dorsally convex, 5 - 10 x ca 8 mm , brown,
marbled.
KEY TO THE VARIETIES
1 a. Leaves 4.5 - 12 (- 15) x 2 - 4 (- 5) cm; stamens 10 - 11; fruits 7 - 10 x 10 - 12 mm; fruiting sepals relatively smaller, 5 - 12 (-16) x 3 - 10 mm, equal or subequal | 3.1. glabellus |
b. Leaves (4.5 -) 6.5 - 19 x 3 - 6 (- 7) cm; stamens 11 - 16; fruits 12 - 15 x 15 - 18 mm; fruiting sepals relatively larger, 12 - 32 x 4 - 18 mm, subequal or unequal | 3.2. lawianus |