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Published In: Mémoires Presentes a l'Académie Impériale des Sciences de St.-Pétersbourg par Divers Savans et lus dans ses Assemblées 7: 468. 1851. (Mém. Acad. Imp. Sci. St.-Pétersbourg Divers Savans) Name publication detailView in Biodiversity Heritage Library

Project Name Data (Last Modified On 6/2/2011)
Acceptance : Accepted
Project Data     (Last Modified On 6/3/2011)
Synonym Text: Hammada Iljin in Bot. Zhurn. 33 (6): 582.1948; Arthrophytum auctt. p.p. non Schrenk in Bull. Cl. Phys.–Math. Acad. Imp. Sc. Petersb. 3: 211. 1845.
General/Distribution: About 6 species, Central Asian; represented by 5 species in Pakistan.
Comment/Acknowledgements: It is not possible to separate Hammada Iljin and Haloxylon Bunge as the two genera often form a continuum in their characters. Consequently, Hedge (l.c., 1997) retained the broad generic circumscription of Haloxylon Bunge and included most of the taxa within it. We have also adopted the same broader circumscription and placed all our species under Haloxylon.

Some of our taxa have also been placed in the genus Arthrophytum Schrenk, but it is not possible to separate them from our generic circumscription of Haloxylon.


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Small trees or shrubs, with spartioid branches, jointed, brittle stems and reduced or obsolete opposite leaves. Flowers borne on short twigs on lower part of older branches, perfect, 5-merous, with a pair of ± membranous bracteoles, solitary in the axils of scale-like bracts. Perianth segments membranous, free, with basal tufts of flexuose hairs, developing wings in fruit; stamens 5; anthers oblong-oval, unappendaged; filaments exserted, united at base into a hypogynous disc; staminodal lobes 5, thin, glabrous, not thickened. Ovary with 2-5 very short, ± sessile stigmas; seeds horizontal, with spiral embryo.

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1 Low shrubs or perennials, branches not spartioid; wings of the fruiting perianth near the apex, not tightly covering the fruit. (2)
+ Small trees or shrubs with thin spartioid branches; wings of the fruiting perianth near the apex, tightly covering the fruit. 1 Haloxylon persicum
2 (1) Leaves distinct, herbaceous. (3)
+ Leaves reduced to ± scaly dilated tips of the joints. 4 Haloxylon salicornicum
3 (2) Leaves linear oblong, flatish, semiterete; erect hoary pale-puberulous shrub. 2 Haloxylon griffithii
+ Leaves oblong, trigonous, glabrous-pruinose; very fleshy, straggling herb. 3 Haloxylon stocksii
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