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(Last Modified On 11/13/2012)
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(Last Modified On 11/13/2012)
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Species
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MARATHRUM ALLENII Woodson
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PlaceOfPublication
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Ann. Mo. Bot. Gard. 25:827. 1938.
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Description
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Small herbs; base irregular, sometimes branched, 0.5-7.0 cm. wide, 0.5-4.0 cm. high. Leaves 1-20 cm. long, 3-4 times pinnate, with all the pinnae ascending at an angle of 30-600; primary pinnae 0.3-3.0 cm. long, membranaceously widened in the axils; secondary pinnae 1-1.5 mm. long, the ultimate pinnae a few times forked, the ultimate divisions spathulate, mostly acute, nerveless or seldom indis- tinctly nerved, to 1.5 mm. long and 0.3 mm. wide; petiole dilated at the base, with a membranaceous, acute to obtuse or emarginate ligule 1-2 mm. long and 1 mm. wide, which sometimes is markedly shifted toward the ventral side, 0.3-7.0 cm. long, 0.5-2.0 mm. wide. Flowers several; pedicel 1.0-7.5 cm. long, terete or 2- winged; spathe clavate, the young 2-8 mm. long, obtuse or mucronate, smooth or slightly papillate, the older infundibuliform, 7-15 mm. long; tepals 6-9, scale-like, 0.5 mm. long or shorter; stamens 5-9, 4.0-5.5 mm. long, the filaments lanceolate, membranaceous, sometimes split at the top, the anthers acute, obtuse or emarginate, 1.0-2.5 mm. long; pollen ellipsoidal, 17 X 14 Es, the lobes tapering toward one pole; ovary ovoid or ellipsoid, 3.5-4.0 mm. long, terete, acute, sessile or attenuate *at the base, 8-ribbed, the ribs slightly raised; styles filiform, narrow, 3-sided at the base, obtuse or slightly emarginate, papillate, nerved, 0.5-2.0 mm. long. Fruit with 2 equal 5-ribbed valves, the ribs but slightly raised.
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Distribution
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Panama.
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Specimen
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CHIRIQUi: Remedios, Pittier 5443. COCLE: El Valle de Anton, Allen 82; same locality, Woodson d Schery I60.
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