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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: A difficult genus both taxonomically and nomenclaturally. An overall revision based on good field observations on fruit and flower characters is desired. The present account is therefore provisional in nature.

100 species, widespread in warm temperate region of both hemispheres, mainly S. America. Represented in Pakistan by 7 species.


 

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Shrubs, often armed with shoots modified into spines. Leaves entire, sometimes verticillate. Flowers 1-6 in number, axillary, white to light purple. Calyx persistent, tubular to ± campanulate, 4-5-lobed, irregular; lobes small, acute to obtuse, shorter or equalling the corolla tube, rarely more, acute or obtuse. Anthers included or exserted, dehiscing longitudinally; filaments glabrous or pilose to villous. Ovary bilocular. Style slender, stigma capitate. Berry globose or oblong, red or black. Seeds reniform, compressed, subglabrous.
 

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1 Berries red (2)
+ Berries black 1 Lycium ruthenicum
2 (1) Shoots usually yellow-white to brown. Calyx not obconical. Berries globose (3)
+ Shoots silvery white. Calyx obconical. Berries obovoid to broad ellipsoid 7 Lycium makranicum
3 (2) Corolla lobes 1/4 to 1/2 as long as the tube. Filaments glabrous to pilose or pubescent-villous at the base (4)
+ Corolla lobes as long as tube. Filaments dense villous at the base 2 Lycium chinense
4 (3) Shoots glabrous. Corolla infundibuliform to tubular, lobes usually obtuse (5)
+ Shoots and base of spines tomentose. Corolla tubular, lobes acute 4 Lycium shawii
5 (4) Filaments glabrous at the base (6)
+ Filaments pubescent-villous at the base 6 Lycium dasystemum
6 (5) Flowers 2-6, pale violet to violet. Pedicel 5-7 (-24) mm long. Stamens exserted 5 Lycium depressum
+ Flowers 1-2, white. Pedicel 3-6 mm long, Stamens subexserted 3 Lycium edgeworthii
 
 
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