Hiptage Gaertner

Climbing shrubs. Leaves opposite, entire, coriaceous; stipules minute, gland-like or absent. Racemes terminal and axillary, sometimes branched; peduncles bracteate, articulate with 2-bracteate pedicels. Calyx 5-partite with one large gland partly adnate to pedicel. Petals 5, clawed, unequal, silky, white, fragrant, fifth petal discoloured. Stamens 10, declinate, all fertile, one much longer than rest; filaments connate at base. Ovary 3-lobed; styles 1 - 2, filiform, circinate when young; stigma capitellate. Samaras 1 - 3, 2 - 3-winged; seeds subglobose; cotyledons unequal, curved, thick.

W. China, subtropical Asia, Taiwan, Malay and Pacific islands; ca 30 species, 9 species in India.

KEY TO THE SPECIES

1a. Inflorescence white appressed-pubescent (softly tomentose or silky-white woolly)

2

b. Inflorescence rusty- or flavid-tomentose

6

2a. Branches. elongate, twiggy; leaves 5.5-8.5 x 1.5-3.7 cm; racence 4-16-flowered

3

b. Branches stout; leaves 9-21 x 4-9 cm; racemes 10-30-flowered

5

3a. Leavel linear-elliptic, Mortly acuminate at apex; petioles 3-4 mm long

4. Hiptage jacobsii

b. Leaves ovate-oblong or ovate-elliptic, acuminate or acute at apex; petioles more than 5 mm long

4

4a. Leaves long acuminate at apex; pedicels articulate above middle; calyx-lobes greenish, tomentose; glands ovoid

7. Hiptage parvifolia

b. Leavea acute or obtuse at apex; pedicela articulate at middle; calyx-lobes red, glabrous; glands oblanceo- late

9. Hiptage thothathrii

5a. Leaves long-acuminate at apex;glands ca 4.5 x 2 mm; median wings of smaras 40-60 x 10-15 mm

2. Hiptage benghalensis

b. Leaves abruptly shortly and obtusely acuminate at apex; glands ca 2 x 0.75 mm; median wings of samaras ca 13 x 3 mm

6. Hiptage obtusifolia

6a. Trees; leaves flavid-tomentose on both surfaces when young, glabrous above when old

3. Hiptage candicans

b. Dense bushy shrubs or Climbers; leaves glabrous and glossy on both surfaces.

7

7a. Foliar glands deeply placed on intrastaminal nervules; racemes fascicled

1. Hiptage acuminata

b. Foliar glands absent; racemes not faleacled

8

8a. Leaves ovate, abruptly acute or retuse at apex, tomentose above when young; sparsely pubescent on nerves beneath when old; calyx glands circular

5. Hiptage nayarii

b. Leaves oblong, elliptic-ovate, acuminate at apex, glabrous; calycinal glands oblong

8. Hiptage sericea

List of Lower Taxa