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