(Last Modified On 9/4/2013)
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(Last Modified On 9/4/2013)
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Genus
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Geophila Don
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PlaceOfPublication
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Prodr. Fl. Nepal. 136. 1825. Nomen conserv.
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Note
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TYPE: G. reniformis D. Don, nom. illeg. = G. herbacea (Jacq.) Schumann.
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Synonym
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Carinta E. F. Wight, Contr. U.S. Natl. Herb. 9: 216. 1905. TYPE: Psychotria herbacea Jacq. Geophila herbacea (Jacq.) Schumann. Geocardia Standley, Contr. U.S. Natl. Herb. 17: 444. 1914. TYPE: not indicated.
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Description
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Creeping herbs. Leaves often cordate, membranous; petioles elongate. Inflorescences axillary, usually pedunculate, the flowers few in a terminal cluster. Flowers with the calycine tube dentate or lobate; corolla funnelform, pilose in the throat, the lobes valvate; stamens 4-7, the filaments slender, inserted in the throat; ovary 2-celled. Fruits fleshy, drupaceous, the 2 nutlets plano convex, compressed dorsally, usually costate.
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Habit
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herbs
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Distribution
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a genus of about 30 species, occurs throughout the tropical areas of the world.
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Reference
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Steyermark, J. A. 1977. A new member of the Rubiaceae from Panama. Phy- tologia 35: 401-402.
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Key
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a. Leaf blades with auricles not overlapping at the base; bracts lanceolate or lance oblong. b. Leaves with abundant cystoliths beneath, the blades 2.5-6.0 cm long, 2.0-4.5 cm wide; peduncles 0.1-0.2 cm long at anthesis, glabrous ...... 1. G. croatii bb. Leaves lacking cystoliths beneath, the blades 2-9 cm long, 1.0-8.5 cm wide; pedun- cles 0.8-5.0(-8.0) cm long at anthesis, puberulous ...... 2. G. macropoda aa. Leaf blades with auricles overlapping at the base; bracts subulate ...... 3. G. repens
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