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Published In: Species Plantarum 1: 191. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: YASIN J. NASIR
General/Distribution: About 175 species, mainly tropical America and Australia. Represented in Pakistan by 4 cultivated species.


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Shrubs or small trees, some of a climbing habit. Leaves alternate, entire. Flowers in axillary or terminal cymes, usually fragrant. Calyx campanulate or tubular, 5-toothed. Corolla salver-or trumpet shaped, 5-lobed, much exceeding the calyx in length; tube cylindric. Stamens 5, included. Ovary bilocular, with many ovules on an axile placenta. Fruit a berry. Seeds few.

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1 Flowers creamy-white to greenish-yellow, fragrant (2)
+ Flowers orange-yellow coloured, not fragrant 1 Cestrum aurantiacum
2 (1) Flowers greenish-yellow, sweet scented by night. Calyx lobes acute. Corolla 15-20 mm long, lobes acutish, pubescent on the inside (3)
+ Flowers creamy-white, sweet scented by day. Calyx ± truncate, the lobes shallowly obtuse. Corolla 10 mm long, lobes obtuse, glabrous on the inside 2 Cestrum diurnum
3 (2) Flowers in cymes or terminal panicles. Corolla lobes spreading. Upper part of filament not toothed 4 Cestrum parqui
+ Flowers in terminal and axillary panicles. Corolla lobes erect. Upper part of filament toothed 3 Cestrum nocturnum
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