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Published In: Species Plantarum 2: 1003. 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: A. RADCLIFFE-SMITH
General/Distribution: A large pantropical genus of 450 species, represented in Pakistan by 3 native species. 2 further species are cultivated, namely A. hispida Burm. f. from the Bismarck Archipelago, cultivated in the Ghandi Garden and the Karachi University Campus (S. Qureshi in KUH 2030; G.N. Nuzhat 181 in KUH 2027) and A. wilkesiana Muell. Arg. from Melanesia, cultivated in the Ghandi Garden and at Khewra (P. Begum in KUH 2034; RAW 12410; Zarina 6900 in RAW 47024), with its f. circinata Muell. Arg. (S. Qureshi in KUH 2037).


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Monoecious or rarely dioecious annual or perennial herbs, shrubs or rarely trees. Indumentum usually simple, sometimes glandular. Leaves alternate, usually petiolate, stipulate, simple, often toothed and penninerved. Inflorescences termianal, axillary or both, uni- or bisexual, spicate, racemose or paniculate. Male bracts small and inconspicuous. Female bracts often foliaceous, accrescent, toothed or lobed. Male flowers small, shortly pedicellate; calyx closed in bud, later valvately 4-partite; petals and disc 0; stamens 8, filaments free, broad, anther-cells distinct, spreading or pendulous, oblong or linear, later flexuous-vermiform; pistillode 0. Female flowers pedicellate or sessile; calyx-lobes 3-4 (-5), small, imbricate; petals and disc 0; ovary (2-) 3-celled, with 1 ovule per cell; styles free or connate, filiform, laciniate or fimbriate, often reddish-hued. Allomorphic flowers usually terminate the inflorescences, having 1-celled ovaries. Fruit trilobate, small, dehiscing septicidally into 3 bivalved cocci. Seeds ellipsoid-subglobose, often with a ventral ridge; testa crustaceous; albumen fleshy; cotyledons broad, flat.

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1 Small to medium annual herbs (2)
+ Large shrubs (4)
2 (1) Bracts of the female flowers divided into three linear spreading obtuse lobe 1 Acalypha brachystachya
+ Bracts of the female flowers toothed or fringed (3)
3 (2) Bracts of the female flowers toothed 2 Acalypha indica
+ Bracts of the female flowers fringed 3 Acalypha ciliata
4 (1) Female bracts entire, minute; inflorescences to 30 cm long, dense-flowered, with massed red styles 4 Acalypha hispida
+ Female bracts toothed, accrescent; inflorescences to 12 cm long, lax flowered, styles yellowish- or greenish-white, occasionally reddish 5 Acalypha wilkesiana
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