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(Last Modified On 1/20/2013)
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(Last Modified On 1/20/2013)
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Species
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ZYGOPETALUM GRANDIFLORUM (A. Rich.) Benth. & Hook. ex Hemsl.
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PlaceOfPublication
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Biol. Centr.-Amer. Bot. 3:25 1. 1883.
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Synonym
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Galeottia grandiflora A. Rich. in Ann. Sci. Nat. Bot. III, 3:25. 1845. Batemannia grandiflora Rchb. f. in Bonplandia 4:323. 1856.
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Description
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Epiphytic herbs, with ovoid, somewhat furrowed pseudobulbs 3.5-6 cm. long and 2-3 cm. wide, enveloped at the base in 3-4 papery, imbricating bracts; the apex of the pseudobulbs with 2 elliptic-lanceolate, plicate, acute leaves 25-50 cm. long and 4-6.5 cm. wide. Inflorescences 15-18 cm. tall, produced from the base of the current flush of new growth. Flowers 1 to about 5, large and conspicuous, the pedicels subtended by broad, spathaceous, papery bracts. Sepals subequal, spreading, the apices recurved, green striped reddish brown, dorsal sepal free, lanceolate-acuminate, 3.0-4.5 cm. long and 1.0-1.5 cm. wide, laterals connate at the base and adnate to the foot of the column, forming a gibbose mentum, rather obliquely lanceolate, acuminate, 3.0-4.5 cm. long and 1.2-1.8 cm. wide. Petals subequal to the sepals, obliquely falcate, acuminate, spreading, the broad bases adnate to the sides of the column foot, the apices recurved, green striped reddish- brown, 3.0-4.0 cm. long and 1.2-1.8 cm. wide. Lip conspicuously 3-lobed, abruptly contracted at the base, with a short claw which is articulated with the column foot, white with dull red or purple longitudinal markings, lateral lobes erect, rather obliquely acute, with fimbriate margins, mid-lobe obovate, acuminate, somewhat concave, the attenuate apex strongly recurved, the lateral margins fimbriate; disk between the lateral lobes with a broad, erect, lunate, prominently ridged and furrowed, multi-denticulate callus. Column broad, stout, arcuate, 1.5-2 cm. long, the apex with 2 short, denticulate processes on either side of which are 2 subfalcate, obliquely obtuse wings with ciliate apical margins; the base of the column produced into a short, broad foot.
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Distribution
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Mexico, Guatemala, Costa Rica, and Panama.
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Specimen
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CHIRIQUI: vic. Cerro Punta, headwaters of the Rio Chiriqui Viejo, 2000 m., Allen 3604.
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