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ILLUSTRATIONS AND STUDIES IN NEOTROPICAL ORCHIDACEAE. 5. THE LEPANTHES OVALIS GROUP (PLEUROTHALLIDINAE) WITH THREE NEW SPECIES FROM COSTA RICA

Diego Bogarín, Christina M. Smith and Daniel Jiménez
Journal of the Botanical Research Institute of Texas
Vol. 6, No. 2 (23 NOVEMBER 2012), pp. 361-373
Stable URL: http://www.jstor.org/stable/41972421
Page Count: 13
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
ILLUSTRATIONS AND STUDIES IN NEOTROPICAL ORCHIDACEAE. 5. THE LEPANTHES OVALIS GROUP (PLEUROTHALLIDINAE) WITH THREE NEW SPECIES FROM COSTA RICA
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Abstract

We revise and characterize the group of species close to Lepanthes ovalis. Three new species from Costa Rica are described and illustrated. Lepanthes dikoensis Bogarin & CM. Sm., sp. nov. is similar to L. viridis but differs mainly by the smaller leaves (to 4 cm long) and smaller flowers (to 6.5 mm in diameter), the glabrous petals with the lower lobe ovate, falcate, shorter than the lobes of the lip, both lobes yellow with red-orange and scarlet, the lip scarlet, apically yellowish and the appendix oblong. Lepanthes expansilabia Bogarin & CM. Sm., sp. nov. is similar to L. erinacea but differs by the pendent plants, the petals with the lobes oblong, subsimilar, the lower lobe yellow, the lip spreading with the lobes separated and not touching each other, leaving the appendix exposed. Lepanthes tarrazuensis Bogarin & D. Jiménez, sp. nov. is similar to L. seegeri but differs in the glabrous petals, the lip glabrous with ciliate apices, the upper lobe of petals truncate, without lobules at the inner apical corner, the petals and lip basally red, tinged with yellow-orange at apex, the blades of the lip touching each other above the column and the appendix shorter, not extending far from the column. An illustration of L. erinacea, a key to the species of the group and a table summarizing the differences between the Costa Rican taxa are provided. Revisamos y caracterizamos el grupo de especies cercanas a Lepanthes ovalis. Se describen e ilustran tres especies nuevas de Costa Rica. Lepanthes dikoensis es similar a L. viridis, pero se diferencia principalmente por las hojas más pequeñas (hasta 4 cm de largo) y flores más pequeñas (hasta 6, 5 mm de diámetro), los pétalos glabros con el lóbulo inferior ovado, falcado, más corto que los lóbulos del labelo, ambos lóbulos de color amarillo con rojo-anaranjado y escarlata, el labelo escarlata, apicalmente amarillento y el apéndice oblongo. Lepanthes expansilabia es similar a L. erinacea pero se diferencia por las plantas péndulas, los pétalos con los lóbulos oblongos, subsimilares, el lóbulo inferior de color amarillo, el labelo expandido y con los lóbulos separados que no se tocan entre sí, dejando el apéndice expuesto. Lepanthes tarrazuensis es similar a L. seegeri pero difiere en los pétalos y el labelo glabros con los ápices ciliados, el lóbulo superior de los pétalos truncados, sin lóbulos en la esquina interior apical, los pétalos y el labelo basalmente rojos, teñidos de color amarillo-anaranjado en el ápice, las láminas del labelo tocándose entre sí por encima de la columna y el apéndice más corto, que no se extiende lejos de la columna. Se proporciona una clave para las especies del grupo, una ilustración de L. erinacea y una tabla que resume las diferencias entre los taxones de Costa Rica.

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