Abstract
Miconia amplipedunculata is described as a new species that is known from a limited area in the Caribbean lowland rainforests of Panama. Line drawings, field photographs, a distribution map, and a comparative discussion of morphologically similar species are provided. This species is readily distinguished by its short-petiolate alternately 3-plinerved leaf blades, brown amorphous stellulate-lepidote indumentum on the primary and secondary veins of abaxial foliar surfaces and inflorescence, long-pedunculate (up to 12.5 cm) inflorescence, persistent bracts and bracteoles, unlobed truncate calyx, prominent subulate calyx teeth that exceed the calyx, 5-merous flowers, distally constricted anther filaments, and isometric and isomorphic stamens that lack appendages. The new species is compared with M. iteophylla, M. jefensis, M. ligulata, and M. peltata. All of these species, except M. ligulata, are also endemic to Panama.
References
Almeda, F. (1989) New species and taxonomic notes on Mexican and Central American Melastomataceae. Proceedings of the California Academy of Sciences, ser. 4 46 (9): 209–220.
Almeda, F. (2000) New Costa Rican and Panamanian species of Miconia (Melastomataceae:Miconieae). Proceedings of the California Academy of Sciences, ser. 4 52 (4): 33–54.
Almeda, F. (2009) Melastomataceae. In: Davidse, G., Sousa, M., Knapp, S. & Chiang, F. (Eds.) Flora Mesoamericana Vol. 4 Cucurbitaceae a Polemoniaceae. Universidad Nacional Autónoma de México, México D.F., pp. 164–337.
Almeda, F. (2013) A new epiphytic species of Blakea (Melastomataceae: Blakeeae) from the Caribbean rainforest of Costa Rica. Selbyana 31 (1): 1? 4.
Almeda, F. & Penneys, D.S. (2014) New and reconsidered species of Tropical American Melastomataceae. Brittonia 66 (2): 160 ?169. https://doi.org/10.1007/s12228-013-9320-2
Almeda, F. & Penneys, D.S. (2018) Blakea echinata (Melastomataceae: Blakeeae): a new species from the Caribbean rainforest of Panama. Phytotaxa 372 (1): 104–110. https://doi.org/10.11646/phytotaxa.372.1.9
Almeda, F., Mendoza-Cifuentes, H., Penneys, D.S., Michelangeli, F.A. & Alvear, M. (2016) Melastomataceae. In: Bernal, R., Gradstein, S.R. & Celis, M. (Eds.) Catálogo de plantas y líquenes de Colombia, vol. II. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá, pp. 1585–1664, 2537–2538.
Almeda, F., Michelangeli, F.A. & Goldenberg, R. (2022) Conclusion and future prospects. In: Goldenberg, R., Michelangeli, F.A. & Almeda, F. (Eds.) Systematics, Evolution, and Ecology of Melastomataceae. Springer, Cham, Switzerland, pp. 791–793.
Barrie, F., Ramos, C.A., Ortíz, O.O., Vergara, I. & McPherson, G. (2016) Five new species of Eugenia (Myrtaceae) from Panama. Novon 24 (4): 333–342. https://doi.org/10.3417/2015040
Batista, A., Jaramillo, C.A.A., Ponce, M. & Crawford, A.J. (2014) A new species of Andinobates (Amphibia: Anura: Dendrobatidae) from west central Panama. Zootaxa 3866 (3): 333–352. https://doi.org/10.11646/zootaxa.3866.3.2
Batista, J.E. & Mori, S.A. (2017) Two new species of Eschweilera (Lecythidaceae) from rainforest on the Caribbean slope of Panama. Phytotaxa 296 (1): 41–52. https://doi.org/10.11646/phytotaxa.296.1.2
Beentje, H. (2016) The Kew Plant Glossary: an illustrated dictionary of plant terms. 2<sup>nd</sup> ed. Publishing, Royal Botanic Gardens, Kew, 184 pp.
Cedeño-Fonseca, M., Ortíz, O.O., Zuluaga, A., Grayum, M.H. & Croat, T.B. (2021) Four new species of Monstera (Araceae) from Panama, including one with the largest leaves and another with the largest inflorescence in the genus. Webbia 76 (2): 265–279. https://doi.org/10.36253/jopt-10807
Clark, J.L. & Mora, M.M. (2014) Paradrymonia peltatiflolia (Gesneriaceae), a recently discovered species from Panama. Novon 23 (1): 18–20. https://doi.org/10.3417/2012079
Daly, D. (2014) Dacryodes patrona, a new and endangered species, and new generic record for Central America. Studies in Neotropical Burseraceae XIX. Brittonia 66 (4): 307–310. https://doi.org/10.1007/s12228-014-9334-4
Daniel, T.F. & McPherson, G. (2014) A new species of Aphelandra (Acanthaceae: Acantheae) from Panama with notes on some Colombian species. Brittonia 66 (4): 321–328. https://doi.org/10.1007/s12228-014-9338-0
Don, D. (1823) An illustration of the natural family of plants called Melastomaceae. Memoirs of the Wernerian Natural History Society 4: 276–329.
Gamba, D. & Almeda, F. (2014) Systematics of the Octopleura clade of Miconia (Melastomataceae: Miconieae) in Tropical America. Phytotaxa 179 (1): 1–174. https://doi.org/10.11646/phytotaxa.179.1.1
Gracia, J. de, Grayum, M.H. & Schatz, G. (2017) A new species of Wettinia (Arecaceae: Arecoideae: Iriarteeae) from Panama. Novon 25 (2): 145–149. https://doi.org/10.3417/D-16-00003
Grayum, M.H. & Gracia, J. de (2016) A new species of Synechanthus (Arecaceae: Arecoideae: Chamaedoreeae) from Central Panama. Phytoneuron 71: 1–10.
Harris, J.G. & Harris, M.W. (2004) Plant identification terminology: an illustrated Glossary. 2<sup>nd</sup> ed. Spring Lake Publishing, Spring Lake, Utah, 206 pp.
Holst, B. (2014) A new species of Calyptranthes (Myrtaceae) from Panama. Phytoneuron 77: 1–3.
Idárraga, A., Lowry, P.P. & De Gracia, J. (2015) A new species of Dendropanax (Araliaceae) of restricted range from the Caribbean Slope of Panama. Novon 24 (2): 165–169. https://doi.org/10.3417/2014020
IUCN Standards and Petitions Subcommittee (2019) Guidelines for Using the IUCN Red list Categories and Criteria. Version 14. Available from: http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed 6 August 2022)
Kawasaki, M.L., Castillo, S. & McPherson, G. (2016) A new species of Erisma (Vochysiaceae) from Panama. Novon 25 (1): 18–21. https://doi.org/10.3417/2016003
Kennedy, H. (2014) Calathea gordonii (Marantaceae), a new endemic Panamanian species. Journal of the Botanical Research Institute of Texas 8 (1): 31–35.
Kriebel, R. (2016) A monograph of Conostegia (Melastomataceae, Miconieae). PhytoKeys 67: 1–326. https://doi.org/10.3897/phytokeys.67.6703
Kriebel, R. & Santamaria, D. (2013) A new species of Blakea (Melastomataceae) from Panama with foliaceous sepal appendages and zygomorphic flowers. Brittonia 65 (1): 1–4. https://doi.org/10.1007/s12228-012-9250-4
Michelangeli, F.A. & Santamaria, D. (2020) A new species of Blakea (Melastomataceae: Blakeeae) with pendulous flowers from Costa Rica. Phytotaxa 442 (1): 12–17. https://doi.org/10.11646/phytotaxa.442.1.2
Michelangeli, F.A., Goldenberg, R., Almeda, F., Judd, W.S., Bécquer, E.R., Ocampo, G., Ionta, G.M., Skean, Jr. J.D., Majure, L.C. & Penneys, D.S. (2019) Nomenclatural novelties in (Melastomataceae: Miconieae). Brittonia 71: 81–121. [published online 110/115/2018]. https://doi.org/10.1007/s12228-018-9546-0
Michelangeli, F.A., Nicolas, A.N., Ocampo, G., Goldenberg, R., Almeda, F., Judd, W.S., Bécquer, E.R., Skean Jr., J.D., Sosa, K., Caddah, M.K., Ionta, G.M., Penneys, D.S., Alvear, M., Burke, J.M. & Majure, L.C. (2022) Why recognize Miconia as the only genus in tribe Miconieae (Melastomataceae)? In: Goldenberg, R., Michelangeli, F.A. & Almeda, F. (Eds.) Systematics, Evolution, and Ecology of Melastomataceae. Springer, Cham, Switzerland, pp. 235–254.
Ortiz, O.O., Croat, T.B., Hormell, R. & Cedeño-Fonseca, M. (2020) Advances towards completion of the Anthurium Flora of Central America (Araceae: Pothoideae): contribution of thirty-one new species from Guatemala, Costa Rica, and Panama. Phytotaxa 467 (1): 1–61. https://doi.org/10.11646/phytotaxa.467.1.1
Prance, G.T. (2018) Rhizophoraceae. Flora Neotropica Monographs 120: 1–63.
QGIS Development Team (2019) QGIS Geographic Information System. Open Source Geospatial Foundation Project. Available from: https://qgis.org/en/site/ (accessed 8 August 2022)
Ruiz, H. & Pavón, J. (1794) Florae peruvianae, et chilensis prodromus. Imprenta de Sancha, Madrid, 153 pp.
Schatz, G.E., Ramos, C.A., Ortiz, O.O. & McPherson, G. (2015) A new, restricted range species of Annona (Annonaceae) endemic to the Caribbean slope of Panama. Novon 24 (2): 203–208. https://doi.org/10.3417/2014034
Standley, P.C. (1938) Melastomaceae. Flora of Costa Rica. Field Museum of Natural History, Botanical Series 18 (3): 783–845.
Thiers, B. (2022) [continuously updated] Index Herbariorum: A global directory of public herbaria and associated staff. New York Botanical Garden’s Virtual Herbarium. Available from: http://sweetgum.nybg.org/science/ih/ (accessed 6 August 2022)
Ulloa Ulloa, C., Almeda, F., Goldenberg, R., Kadereit, G., Michelangeli, F.A., Penneys, D.S., Stone, R.D. & Veranso-Libalah, M.C. (2022) Melastomataceae: Global diversity, distribution, and endemism. In: Goldenberg, R., Michelangeli, F.A. & Almeda, F. (Eds.) Systematics, Evolution, and Ecology of Melastomataceae. Springer, Cham, Switzerland, pp. 3–28. https://doi.org/10.1007/978-3-030-99742-7_1
