Botanical Survey of India | Flora of India

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Cyclea Arn. ex Wight


Climbing shrubs. Leaves peltate or not, palmately nerved. Inflorescences axillary or often cauliflorous, racemose or thyrsoid-paniculate. Male flowers: sepals 4 or 5, free or connate, 4- to 5-lobed; petals 4, free or connate into a cup or rarely 0; stamens 4 or 5, connate into a peltate synandrium; anthers dehiscing transversely. Female flowers: sepals 1 or 2; petals 1 or 2, rarely O. Carpel 1; style short; stigma 3-fid. Drupes obovoid, curved, with 6 rows of tubercles. Seeds curved; embryo narrow, terete, embedded in endosperm.

India, Central and South China, Indo-china, Thailand to Malesia; ca 29 species, 8 species in India.



KEY TO THE SPECIES


1a. Flowers without bracts and bracteoles 2
b. Flowers with bracts and bracteoles 3
2a. Petioles 3 - 6 cm long; male inflorescence up to 18 cm long; calyx in male flowers tubular, 4-toothed; petals subcampanulate, 4-lobed 7. Cyclea pendulina
b. Petioles 5 - 10 cm long; male inflorescence ca 8 cm long; calyx in male flowers campanulate, 4-lobed with narrow ovate lobes; petals free 5. Cyclea meeboldii
3a Leaves ciliate or hispid along margins 4
b. Leaves glabrous along margins 5
4a. Sepals in male flowers puberulous inside; synandrium 1.5 - 2 mm long; petals 2 in female flower; ovary ellipsoid; drupes obliquely ovoid or rounded, puberulous 1. Cyclea barbata
b. Sepals in male flowers pilose inside; synandrium 1 - 1.5 mm long; petal one in female flowers; ovary oblongoid; drupes ovoid, pilose 4. Cyclea fissicalyx
5a Petals absent 2. Cyclea bicristata
b. Petals present 6
6a Bracts foliaceous; sepals free 8. Cyclea wattii
b. Bracts linear to lanceolate; sepals connate 7
7a. Petioles 1 - 2.5 cm long; cymes subsessile; calyx glabrous in male flowers; synandrium exserted 3. Cyclea debiliflora
b. Petioles 2ยท5 cm long; cymes peduncled; calyx pilose in male flowers; synandrium included 6. Cyclea peltata


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