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Complete Issue ISSN 1409-3871 LANKESTERIANA VOL. 14, No. 3 DECEMBER 2014 An updated checklist of the Orchidaceae of Panama DIEGO BOGARÍN, ZULEIKA SERRACÍN, ZABDY SAMUDIO, RAFAEL RINCÓN & FRANCO PUPULIN 135 INTERNATIONAL JOURNAL ON ORCHIDOLOGY LANKESTERIANA INTERNATIONAL JOURNAL ON ORCHIDOLOGY Copyright © 2014 Lankester Botanical Garden, University of Costa Rica Effective publication date: December 13, 2014 Layout: Jardín Botánico Lankester. Cover: Isthmus of Panama. Map drawn and engraved by J. Rapkin; illustrations by H. Warren, engraved by J. Wrightson. London, 1851. Printer: MasterLitho. Printed copies: 500 Printed in Costa Rica / Impreso en Costa Rica R Lankesteriana / International Journal on Orchidology No. 1 (2001)-- . -- San José, Costa Rica: Editorial Universidad de Costa Rica, 2001-- v. ISSN-1409-3871 1. Botánica - Publicaciones periódicas, 2. Publicaciones periódicas costarricenses THIS PAPER IS DEDICATED TO ROBERT L. DRESSLER AND KERRY A. DRESSLER FOR ENCOURAGING US IN THE STUDY OF THE ORCHIDS OF PANAMA AND FOR INSPIRING THE NEW GENERATION OF ORCHIDOLOGISTS IN CONTINUING THIS IMMENSE WORK. ESTE TRABAJO ESTÁ DEDICADO A ROBERT L. DRESSLER Y KERRY A. DRESSLER POR ANIMARNOS EN EL ESTUDIO DE LAS ORQUÍDEAS DE PANAMÁ Y POR INSPIRAR A LA NUEVA GENERACIÓN DE ORQUIDEÓLOGOS EN CONTINUAR CON ESTA INMENSA OBRA. I TABLE OF CONTENTS An updated checklist of the Orchidaceae of Panama 135 Introduction 136 Materials and methods 146 Results and discussion 151 Acknowledgments 164 Checklist of the Orchidaceae of Panama 165 Orchidaceae of Panama: photographs 282 Appendix 1. List of basionyms of the orchid flora of Panama 288 Appendix 2. List of orchid species endemic to Panama 341 Appendix 3. Excluded taxa 348 Literature cited 356 LANKESTERIANA 14(1): 135—364. 2014. AN UPDATED CHECKLIST OF THE ORCHIDACEAE OF PANAMA DIEGO BOGARÍN1,2,4, ZULEIKA SERRACÍN2, ZABDY SAMUDIO2, RAFAEL RINCÓN2 & FRANCO PUPULIN1,3 1 Jardín Botánico Lankester, Universidad de Costa Rica. P.O. Box 302-7050 Cartago, Costa Rica, A.C. 2 Herbario UCH, Universidad Autónoma de Chiriquí, 0427, David, Chiriquí, Panama 3 Harvard University Herbaria, 22 Divinity Avenue, Cambridge, Massachusetts, U.S.A.; Marie Selby Botanical Gardens, Sarasota, FL, U.S.A. 4 Author for correspondence: [email protected] AbstRACT. The Orchidaceae is one of the most diverse vascular plant families in the Neotropics and the most diverse in Panama. The number of species is triple that of other well-represented families of angiosperms such as Rubiaceae, Fabaceae and Poaceae. Despite its importance in terms of diversity, the latest checklist was published ten years ago and the latest in-depth taxonomic treatments were published in 1949 and 1993. The accumulation of information over the years and the need to update the nomenclature and to clarify taxonomic concepts made necessary the publication of an up-dated checklist of the Orchidaceae of Panama. This checklist was completed by studying specimens strictly collected in Panama and vouchered in herbaria. Species are presented alphabetically with their synonyms and herbarium vouchers. The data were analyzed to explain the patterns of geographic distribution, most diverse taxa, endemism, exotic species and relationships with other nearby floras. The checklist contains 1365 species (including two natural hybrids and three subspecies) in four subfamilies, 16 tribes, 27 subtribes and 187 genera. Four exotic species were recorded. A total of 296 (21.7%) species are endemic. Epidendroideae is the most diverse group housing more than 90% of species. The most diverse subtribes are Pleurothallidinae (30 genera, 405 spp.), Laeliinae (16 genera, 292 spp.), Oncidiinae (29 genera, 157 spp.) and Maxillariinae (18 genera, 132 spp.). The most diverse genera are: Epidendrum (206 spp.), Stelis (88 spp.), Lepanthes (66 spp.) and Pleurothallis (54 spp.). Nomenclatural changes are proposed in Maxillariella, Pleurothallis, Specklinia, Stelis and Trichocentrum. Many areas remain unexplored for orchids, and we estimate that much work remains to complete a floristic treatment that reveals more realistic data on the orchid flora that Panama harbors. This checklist is an important initial step toward the development of an illustrated treatment of the Orchidaceae of Panama. RESUMEN. Orchidaceae es una de las familias de plantas vasculares más diversas del Neotrópico y la más diversa en Panamá. Su número de especies triplica a las otras familias más diversas de angiospermas como Rubiaceae, Fabaceae y Poaceae. A pesar de su importancia en terminos de diversidad, el último listado de especies se publicó hace diez años y los últimos tratamientos taxonómicos profundos fueron publicados en 1949 y 1993. La acumulación de información a través de esos años así como la necesidad de actualizar la nomenclatura y aclarar conceptos taxonómicos dudosos hace necesaria la publicación de un listado actualizado de las Orchidaceae de Panamá. El presente listado se completó mediante el estudio de especímenes estrictamente recolectados en Panamá y con un testigo en herbario. Las especies se presentan alfabéticamente con sus respectivos sinónimos y se citan los testigos de herbario. Se analizaron los datos para explicar los patrones de distribución, taxa más diversos, endemismos, especies exóticas y relación con floras cercanas. El listado contiene 1365 especies (dos híbridos naturales y tres subespecies) en cuatro subfamilias, 16 tribus, 27 subtribus y 187 géneros. Se registraron 4 especies exóticas. Un total de 296 (21.7%) son especies endémicas. Epidendroideae es el grupo más diverso, concentrando más del 90% de las especies. Las sutribus más diversas son: Pleurothallidinae (30 géneros, 405 spp.), Laeliinae (16 géneros, 292 spp.), Oncidiinae (29, 157 spp.) y Maxillariinae (18 géneros, 132 spp.). Los géneros más diversos son: Epidendrum (206 spp.), Stelis (88 spp.), Lepanthes (66 spp.) y Pleurothallis (54 spp.). Se proponen cambios nomenclatoriales en Maxillariella, Pleurothallis, Specklinia, Stelis y Trichocentrum. Muchas zonas permanecen sin explorar desde el punto de vista orquideológico y estimamos que todavía se necesita mucho trabajo para completar un tratamiento que revele datos más realistas sobre la flora de orquídeas que alberga Panamá. Este listado es un importante paso inicial hacia el desarrollo de un tratamiento ilustrado de las Orchidaceae de Panamá. KEY WORds: floristics, taxonomy, systematics, biogeography, species distribution 136 LANKESTERIANA Introduction. The orchid flora of Panama is one of earliest mentions of an orchid collected in Panama in a the most diverse in the Neotropics. The early efforts to floristic treatment was made by Beurling (1800-1866), understand this family were ephemeral and made by in the “Primitiae florae Portobellensis” who cited a European explorers or expeditions passing through the specimen of Brassavola nodosa Lindl., a plant collected isthmus on the route to North or South America. James “in rupibus extimis ad introitum portus” by J.E. Billberg Wallace in 1700 was perhaps the first plant collector in 1826 (Fig. 2). However, the first descriptions of new in Panama. Wallace collected in the settlement of New species based on collecting expeditions in Panama were Caledonia, on the Atlantic coast of the Kuna Yala (now published subsequent to the exploration of Hugh Cuming Punta Escocés and Isla de Oro), in a failed attempt of (Fig. 3A) for the nursery firm of Messrs Loddiges of Scotland to colonize lands in the New World. However, Hackney. Around 1829-1831 he collected in some these specimens were not studied by the botanists at the areas of the Pacific coast such as Taboga Island, the time and no orchid species based on those collections Las Perlas Archipelago (Pearl Islands), Bay of Montijo are recorded or mentioned in literature (Wallace 1700- and Chiriquí River. Although several of his collections 1701). The first documented record of an orchid in were made at these sites and others on the Pacific coast Panama was an illustration of Catasetum sp., made of Colombia, almost all herbarium specimens were by Joseph Guío, illustrator of the expedition led by labeled “Panama et Columbia occidentalis”. Lindley Alessandro Malaspina between 1789 and 1794. The (1830-1840) described some of these collections: illustration was based on a collection by Louis Neé on Aspasia epidendroides, Dichaea panamensis, Hexisea Taboga Island in December 1790 (Fig. 1). One of the bidentata and Oncidium ampliatum (Fig. 4). Another FIGURE 1. Left, Alessandro Malaspina (1754-1810). Navy Museum, Madrid. Right, The first documented record of an orchid in Panama: Catasetum sp. Illustration by José Guío in Real Jardín Botánico de Madrid, 1989: plate 137. LANKESTERIANA 14(3), December 2014. © Universidad de Costa Rica, 2014. BOGARÍN et al. — Checklist of the Orchidaceae of Panama 137 micrantha Rchb.f., Oncidium stipitatum Lindl. ex Benth. and Ornithocephalus bicornis Lindl. ex Benth., were reported (Hinds 1844, Reichenbach 1852). They also correspond to the first orchid species described from Central America (Fig. 5). These species are typical of coastal areas, indicating that explorations did not penetrate deep into Panama. Berthold Seemann was another of the pioneer explorers and the author of the work entitled Flora of the Isthmus of Panama published in 1854. In 1846 he undertook his first exploration to Panama under The Voyage of the H.M.S Herald during the years 1845- 1851 (Seemann 1852-1857). He explored Chagres, Panama City, Coiba Island, Chiriquí and Darién (Fig. 3B). Seemann (1854)
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