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Published In: Species Plantarum 1: 270. 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: M. QAISER
General/Distribution: A genus with about 90 species (the number of species always remains disputable e.g. Gorshkova (1949), Zohary (1972) report 90 species. Baum (1966) accepts 54 species) distributed chiefly in saline areas of deserts, semideserts, steppes or on the mountains along the river and springs in Asia, Europe and N.E. Africa. In Pakistan the genus is represented by 26 taxa.
Type: Lectotype: Tamarix gallica Linn.
Comment/Acknowledgements: Exculded Species

Tamarix gallica Linn., Sp. Pl. 386. 1753.

This species does not occur in Indo-Pakistan subcontinent.


 

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Shrubs or trees, 2-10 (-12) m tall, with a deep root system, densely branched, glabrous, papillose or subpapillose, bark of various colours, mostly brownish to balckish brown. Leaves small, 0.5-7 mm long, scale-like, alternate, sessile, amplexicaul, vaginate or auriculate, glabrous or pilose, covered with punctate salt secreting glands. Inflorescence simple or compound racemes or panicles, 1-15 cm long, on younger and older branches. Flowers small, penta or tetramerous, mostly bisexual, rarely unisexual, then plants dioecious, each flower is usually substended by one bract, occasionally by two or more, bract ovate, triangulate, or linear amplexicaul or subamplexicaul, herbaceous. or diaphanous, entire or denticulate, acute or obtuse, shorter than, equal or longer than pedicel. Calyx 4 or 5-lobed, subequal or equal with imbricate aestivation, 2 outer, 3 inner (pantamerous) or 2 outer, 2 inner (tetramerous), denticulate or entire, obtuse or acute, various shaped, mostly ovate or orbicular, glabrous or slightly papillose. Petals 4 or 5, free, ovate, oblong, obovate or elliptical, obtuse, slightly notched or somewhat cuneate at the apex, equi or inequilateral, pink, violet, purple or white, deciduous or persistent. Stamens 4-10 (-12) diplostemonous or haplostemonous, antisepalous stamens usually slightly larger than antipetalous stamens, inserted on or below the nectiferous disc. Disc various shaped, anthers ovoid, apiculate or obtuse. Stigmas 3-4, rarely 5 or 2, elongate, clavate or divergent, 2-3-times shorter than the ovary. Ovary pyramidal or bottle shaped, placentas very short at the base of the locules. Capsule, 3-5-engled, conical or pyramidal, dehiscing by 3 valves, downward to base. Seeds small, compressed, glabrous, hairy from the apex, coma sessile.
 

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1 Flowers unisexual 17 Tamarix dioica
+ Flowers bisexual (2)
2 (1) Androecium haplostemonous. Stamens 4-5 (3)
+ Androecium diplostemonous or partially diplostemonous. Stamens (6-) 7-10 (23)
3 (2) Flowers tetramerous or with tetra and pentamerous flowers in the same raceme (18)
+ Flowers always pentamerous (4)
4 (3) Racemes 6-9 mm broad (5)
+ Racemes 3-4(5) mm broad (8)
5 (4) Rachis and branches pubescent 6 Tamarix pakistanica
+ Plant entirely glabrous (6)
6 (5) Bracts linear to linear-oblong, exceeding calyces. Leaves semiamplexicaul 5 Tamarix salina
+ Bracts ovate or triangulate-ovate, never exceeding calyces. Leaves vaginate (7)
7 (6) Petals erect, sepals ovate. Stamens included 18 Tamarix sultanii
+ Petals recurved, sepals orbicular. Stamens exserted 20 Tamarix alii
8 (4) Leaves vaginate (9)
+ Leaves not vaginate (10)
9 (8) Leaves not papillose. Bracts vaginate. Disc mesodiscine 19 Tamarix aphylla
+ Leaves papillose. Bracts not vaginate. Disc epilophic 21 Tamarix kermanensis
10 (8) Petals persistent (11)
+ Petals deciduous (12)
11 (10) Petals obovate without a gibbous base. Peduncle not naked, densely flowered 10 Tamarix ramosissima
+ Petals ovate to orbicular with a gibbous base. Peduncle naked for a considerable distance 8 Tamarix smyrnensis
12 (10) Racemes 2-5 cm long (13)
+ Racemes up to 15 cm long (14)
13 (12) Leaves sessile with narrow base, usually with papillose margin. Petals obovate. Disc mesodiscine 2 Tamarix arceuthoides
+ Leaves amplexicaul, without papillose margin. Petals elliptic, ovate. Disc epilophic or confluent epilophic 4 Tamarix mascatensis
14 (12) Disc mesodiscine (15)
+ Disc epilophic or confluent epilophic (16)
15 (14) Leaves ovate or sessile with narrow base. Rachis glabrous. Bracts 2 mm long. Capsule 34 mm long 11 Tamarix korolkowii
+ Leaves pseudo-vaginate to amplexicaul, rachis minutely papillose. Bract 1 mm long, capsules 6 mm long 1 Tamarix indica
16 (14) Leaves cordate with broad base. Younger parts papillose. Bracts amplexicaul
+ Leaves with narrow base. Entirely glabrous. Btacts not amplexicaul (17)
17 (16) Disc confluent epilophic. Capsule 1.75-2 mm long. Pollen grains without columellae 3 Tamarix leptostachya
+ Disc epilophic. Capsule 3-3.5 mm long. Pollen grains with columellae 9 Tamarix baluchistanica
18 (3) Racemes 6-10 mm broad (19)
+ Racemes 34 (-5) mm broad (20)
19 (18) Bracts not exceeding calyces, oblong lanceolate. Petals 2-2.5 mm long racemes 2-4 cm long 13 Tamarix szovitsiana
+ Bracts exceeding calyces. broadly linear to obtrullate. Petals 3-3.5 mm long. Racemes 5-13 cm long 14 Tamarix tetragyna var. meyeri
20 (18) Bracts longer than the pedicels (21)
+ Bracts shorter than the pedicels (22)
21 (20) Petals parabolic, persistent. Flowers tetra as well as pentamerous 12 Tamarix parviflora
+ Petals elliptic to obovate, deciduous. Flowers only tetramerous 16 Tamarix kotschyi
22 (20) Racemes umbellate at apex 15 Tamarix androssowii var. transcaucassica
+ Racemes not umbellate at the apex
23 (2) Racemes 4-5 mm broad. Leaves veginate only 22 Tamarix stricta
+ Racemes 6-10 mm broad. Older leaves vaginate, younger imbricate (24)
24 (23) Androecium completely diplostemonous, Raceme 9-11 mm broad. Disc fleshy 23 Tamarix ericoides
+ Androecium partially diplostemonous. Racemes 6-8 mm broad. Disc not fleshy (25)
25 (24) Leaves pseudovaginate to vaginate. Rachis glabrous 25 Tamarix sarenensis
+ Leaves amplexicaul or semiamplexicaul. Rachis papillose
 

Lower Taxa
 
 
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