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Published In: Flora Aegyptiaco-Arabica 62. 1775. (Fl. Aegypt.-Arab.) 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: 25 species distributed in the Mediterranean, tropical Africa and Himalaya. Represented in Pakistan by 11 species.

 

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Annual or perennial herbs with hispid parts. Leaves simple, alternate. Inflorescence a terminal scorpioid cyme, bracteate. Flowers heterostylic. Calyx 5 partite, accrescent Corolla usually salverform, white, yellow or shade of blue; lobes imbricate, spreading, throat glabrous. Stamens 5; anthers included or slightly exserted. Style gynobasic, exserted or included. Stigma simple or bifid. Ovary 4-lobed. Nutlets 4, variously ornamented.
 

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1 Plants perennial (2)
+ Plants annual (6)
2 (1) Base of corolla tube not constricted (3)
+ Base of corolla tube constricted 1 Arnebia guttata
3 (2) Inflorescence globose or broader than long. Leaves faintly nerved (4)
+ Inflorescence much broader than long. Leaves distinctly nerved (5)
4 (3) Plants up to 40 cm tall, glandulose, Stem lateral. Leaves 5-11 mm broad 2 Arnebia euchroma
+ Plants up to 15 cm tall, eglandular. Stem arising from center of leaves. Leaves 3-5 mm broad 3 Arnebia inconspicua
5 (3) Inflorescence interrupted. Bracts shorter, not exceeding the calyces in the upper half of inflorescence 5 Arnebia speciosa
+ Inflorescence not interrupted. Bracts longer, exceeding the calyces throughout the inflorescence length 4 Arnebia benthamii
6 (1) Corolla lobes entire (7)
+ Corolla lobes fimbriate to lobed at the apex 6 Arnebia fimbriopetala
7 (6) Style 2-fld or entire. Stigma bibbed or entire (8)
+ Style doubly 2-fid at apex (10)
8 (7) Calyx without prominent midrib or veins, barely dilated at base, lobes acute (9)
+ Calyx with prominent midrib and veins, dilated at base, lobes obtuse 7 Arnebia linearifolia
9 (8) Plants densely hispid. Leaves lanceolate. Corolla yellow, 10-15 mm long; limb 4-5 mm long, not spotted 11 Arnebia hispidissima
+ Plants not densely hispid. Leaves broad lanceolate to oblanceolate. Corolla yellow-orange, 20- 25 mm long; limb 15-17 mm long, with 5 purple-brown spots 10 Arnebia griffithii
10 (7) Corolla less than 20 mm long, limb less than 10 mm broad, not spotted or rarely so 8 Arnebia decumbens
+ Corolla 20-37 mm long, limb more than 10 mm broad, with 5 purple-brown spots 9 Arnebia grandiflora
 
 
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