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Published In: Species Plantarum 1: 397. 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)
General/Distribution: A genus of about 80 species, mostly found in the Himalayas, China, Upper Burma, Java, Japan, E.N. & W.S. America. Majority of the plants are beauti¬ful and ornamental. Represented in W. Pakistan by I cultivated species.

 

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Stem softly woody with broad pith. Leaves opposite, decussate, serrate, rarely entire, sometimes deeply lobed, deciduous, petiolate. Flowers in terminal paniculate cymes or corymbs, inner central ones regular, bisexual, a few or majority of the outer ones sometimes sterile, long pedicelled. In sterile flowers sepals 4-5, petaloid, enlarged and distinctly veined; petals 4-5, rudimentary or missing. Fertile flowers perfect, regular; sepals 5-4, imbricate; petals 5-4, valvate; stamens 8-10, anthers short; ovary inferior, 2-5-locular, ovules numerous on T-shaped, introflexed parietal placentas; styles 2-5, short, free or united at the base, stigmas terminal. Fruit a 2-5-locular, membranous capsule opening at the top between the styles. Seeds many, minute; testa membranous, reticulate.
 
 
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