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(Last Modified On 7/30/2013)
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(Last Modified On 7/30/2013)
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Genus
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Pseuderanthemum Radlk.
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PlaceOfPublication
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Sitzungsber. Math.-Phys. K1. Bayer. Akad. Wiss., Miinchen 13: 282. 1883.
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Note
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TYPE: E. alatum Nees.
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Description
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Herbs or small shrubs. Leaves ovate or elliptic. Inflorescences in terminal or axillary spikes, racemes or panicles; 1 bract and 2 bracteoles subtending each flower or flower cluster. Flowers with the calyx segments 4 or 5, subulate; corolla white, blue, purplish or pink, the tube narrow, the limb spreading, the 5 lobes subequal; stamens 2, included or exserted, the staminodes 2, minute, the anther cells basally obtuse or acute. Capsules long stipitate; seeds 2 or 4.
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Habit
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Herbs or small shrubs
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Note
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This genus has 120 species from Old and New World Tropics.
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Key
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a. Leaves basally cordate or subcordate; inflorescences racemose ...... 2. P. cordatun aa. Leaves basally rounded and/or attenuate; inflorescences in panicles or spikes. b. Inflorescences in spikes; rachis of inflorescence puberulous or glandular puber- ulous. c. Calyx glabrous; flowers clustered in pseudowhorls on the rachis ...... 3. P. cuspidatum cc. Calyx glandular puberulous; flowers borne singly and alternating on the rachis ...... 4. P. standleyi bb. Inflorescences in panicles; rachis of inflorescence glabrous ...... 1. P. atropurpureum
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