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Photos: Bramley, G.

Photo: Bramley, G.

Subfamily

I. Subfam. Symphorematoideae Briq. in Engler & Prantl (1895).

Description

Climbing shrubs; leaves entire; inflorescence terminal or axillary, of 3-9-fld capitate cymes, pedunculate, involucre of 3-4 elongate, spreading outer bracteoles (often referred to as bracts), rarely with 2 inner bracteoles, inconspicuous, subulate, outer bracteoles spathulate to ovate-elliptic, rounded at apex, rarely bilobed, very showy, purple or white-tomentose on adaxial surface and sometimes connate at base to form a small cup-shaped structure; flowers sessile or shortly pedicellate; calyx actinomorphic, weakly accrescent in fruit, narrowly infundibuliform, 5-lobed, lobes equal, triangular, calyx-tube longer than lobes, 10-nerved, densely hairy within, especially in throat; corolla lilac or pink, 2-lipped, 5-lobed (2/3), longer or shorter than calyx, posterior lip with 2 rounded lobes, anterior lip much shorter with 3 lobes rounded, slightly spreading, corolla-tube cylindrical, straight, slightly expanded around ovary near base, inserted or exserted from calyx, densely annulate within near throat; stamens 4 (posterior stamen absent), didynamous, divergent, exserted or rarely included, filaments sometimes very long, becoming curled, thecae rounded, parallel, separate; style terminal, exserted, stigma-lobes 2, very short. 2n = 34.  Seven to ten species, India (Assam), Bangladesh, Burma, Thailand, Cambodia, Laos, Vietnam, Malaya, Sumatra, and SW China.   Congea tomentosa Roxb. is widely cultivated.

Distribution

Native to:

36 China
40 Indian Subcontinent
41 Indo-China
42 Malesia

Introduced to:

29 Western Indian Ocean

Present, but doubtfully native in:

60 Southwestern Pacific

Synonyms

Calochlamys C.Presl, Abh. Königl. Böhm. Ges. Wiss., V, 3: 578 (1845). 

Publication

Congea Roxb., Pl. Coromandel 3: 90, t.293 (1820); Munir, A.A. Gardens Bull. Singapore 21: 259-314 (1966), rev.

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Image resource

© Royal Botanic Gardens, Kew