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Published In: The Gardeners Dictionary...Abridged...fourth edition vol. 3. 1754. (28 Jan 1754) (Gard. Dict. Abr. (ed. 4)) Name publication detail
 

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Contributor Text: M. QAISER AND S. NAZIMUDDIN
General/Distribution: A genus of about 100 species distributed mostly in tropical America, Africa, Mediteranean region, Indo-Malaya, Australia, Pakistan and India. Represented by 6 species in Pakistan.
Comment/Acknowledgements: Excluded species

1. Ziziphus glabrata Heyne ex Roth, Nov. Sp. 159. 1821.

2. Ziziphus horrida Roth, l.c. 150.

Hasnain & Rahman (Pl. Kar. Sind. 19. 1957) have reported Z. glabrata Heyne ex Roth and Z. horrida Roth from Sind vide Cooke. However we have not come across any specimen belonging to these species.


 

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Trees or shrubs, mostly armed with a pair of stipular spines, one usually long and straight and the other short recurved. Leaves mostly distichous to subdistichous, alternate 3(-5)-nerved, usually leathery and oblique at the base, entire serrate or serrulate. Flowers in axillary cymes, 5-merous, regular, greenish yellow, mostly bisexual. Calyx 5-fid, saucer-shaped, lobes keeled. Petals 5, rarely absent, cucullate, disc pitted or flat 5-10 lobed, mostly lining the calyx tube. Stamens enclosed within the petals. Ovary immersed in disc, 2-4 celled, style 2(-3)-partite, stigma papillose, small. Fruit drupaceous, fleshy, succulent, globose-oblong, pyrenes 1-4, rugose or tuberculate,
1-seed in each stone. Seed plano-convex, mostly with very scanty endosperm.
 

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1.Leaves densely velvety or fulvous tomentose beneath
2.Petals absent, leaves and young branches covered with fulvous tomentum beneath
Ziziphus rugosa
2.Petals present, leaves whitish velvety tomentose beneath; pubescent or glabrous above, young branches pubescent
3.Fruit more than 1.5 cm in diam.; leaves glabrous above, petiole 8-15 mm
Ziziphus mauritiana
3.Fruit less than 1.5 cm in diam.; leaves densely hairy above, petiole 3-5 mm
Ziziphus nummularia
1.Leaves glabrous, glabrescent pubescent beneath
4.Inflorescence pubescent, leaves broadly ovate to ovate-elliptic or orbicular, entire or obsoletely crenate
Ziziphus spina-christi
4.Inflorescence glabrous, leaves oblong ovate to ovate-lanceolate, crenately serrate or serrate
5.Leaves acuminate
Ziziphus oxyphylla
5.Leaves obtuse or subacute
Ziziphus jujuba
 
 
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