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(Last Modified On 11/8/2012)
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(Last Modified On 11/8/2012)
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Species
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STELIS ALLENII L. Wms.
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PlaceOfPublication
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Ann. Missouri Bot. Gard. 29:338. 1942.
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Description
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Large caespitose epiphytic herbs up to 4 dm. tall. Secondary stems 7-15 cm. long and 0.25-0.35 cm. in diameter, covered with two or three loose sheaths which soon disentegrate, shorter than the leaves. Leaves 10-19 cm. long and 3.5-7 cm. broad, elliptic to elliptic-oval, acute or obtuse, coriaceous, attenuated into a short petiole at the base. Inflorescence up to 30 cm. long, floriferous to the base, one or more borne from the apex of the stems (if more than one then presumably borne in different years); sheaths up to 2.5 cm. long, cucullate, ample; bracts 2-18 mm. long, reduced upwards, ovate-lanceolate, acute or acuminate, infundibuliform; flowers largest of the genus. Dorsal sepal 14-16 mm. long and 5-6 mm. broad, lanceolate, acute, 11-13-nerved, cucullate. Lateral sepals connate to their apices, together 10-12 mm. long and 8-10 mm. broad, suborbicular-ovate, acute or obtuse, cucullate and gibbous at the base, many- nerved. Petals about 1 mm. long and 1.5 mm. broad, broadly flabellate to trans- versely oval, the apex much thickened. Lip 0.75-1 mm. long and 1-1.4 mm. broad, about 0.75 mm. thick at the apex, flabellate, truncate, the transverse callus at the apex of the lip, very like the petals but slightly smaller.
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Distribution
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Endemic in Panama.
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Native
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Endemic
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Specimen
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COCLE: hills north of El Valle de Anton, alt. 800 m., Allen 2952.
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Note
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Stelis Allenii is perhaps the most distinctive species of the genus in Central America and seems to be the largest-flowered. There are no near allies in Central America but the species seems to belong to Lindley's section Dialissa, a section with but a few species in the Andes.
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