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Published In: Edwards's Botanical Register 15: , pl. 1300. 1830. (Edwards's Bot. Reg.) 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: I.C. Hedge
General/Distribution: About 15 mainly E Asiatic species. Related to Ocimum in many characters, but corolla tube usually exserted, stigma capitate-clavate and nutlets punctulate.


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Perennial herbs or subshrubs with a sparse eglandular indumentum. Leaves undivided, crenate to serrate, petiolate or sessile. Verticillasters 4-6-flowered in terminal or lateral racemes. Bracts small. Flowers white, lilac to purplish. Calyx small in flower, enlarging and deflexed in fruit, ovate to tubular; upper lip 1, large, ovate, recurved with decurrent margins; 4 lower teeth subulate - attenuate, curved, 2 long, 2 short; throat of calyx without a villous ring of hairs. Corolla bilabiate; upper lip 3-4-fid; lower entire ± cucullate; tube exserted from calyx or not, rather slender. Stamens 4, declinate; filaments without teeth or appendages; thecae unilocular by fusion. Style with a capitate-clavate slightly notched stigma. Nutlets ovoid, finely punctulate.

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1.All leaves sessile or subsessile; corolla tube clearly longer than calyx
Orthosiphon rubicundus
1.All leaves except uppermost petiolate; corolla tube about as long as calyx
Orthosiphon pallidus
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