Justicia darienensis (Acanthaceae: Justicieae: Justiciinae), a new species endemic to a tropical sky island in Panama

Authors

  • Thomas F. Daniel California Academy of Sciences
  • Marjorie G. Vargas P. Universidad de Panamá

DOI:

https://doi.org/10.17348/jbrit.v18.i1.1339

Keywords:

Justicia, Central America, Cerro Chucantí, biodiversity hotspot, pollen

Abstract

A new species, Justicia darienensis T.F. Daniel & M. Vargas P., is described from a biodiverse “hotspot” in an isolated cloud forest of Darién Province in eastern Panama. It is compared to morphologically and palynologically similar species in southern Central America. Justicia darienensis is characterized by a complex inflorescence with heteromorphic (shape and fertility) bracts, white corollas with purple markings on the lower lip, glabrous anther thecae, 4-aperturate pollen, and pubescent capsules. Images of the plant and its pollen are provided.

References

BATISTA, A. K. MEBERT, M. MIRANDA, O. GARCÉS, R. FUENTES, & M. PONCE. 2020. Endemism on a threatened sky island: new and rare species of herpetofauna from Cerro Chucantí, eastern Panama. Amphib. Reptile Conserv. 14:27–46.

BUBB, P., I. MAY, L. MILES, & J. SAYER. 2004. Cloud forest agenda. UNEP-WCMC, Cambridge, UK. http://www.unep-wcmc.org/resources/publications/UNEP_ WCMC_ bio_series/20.htm. Accessed July 2023.

CORREA A., M. D., C. GALDAMES, & M.S. DE STAPF. 2004. Catálogo de las plantas vasculares de Panamá. Autoridad Nacional del Ambiente, Panama. 599 pp.

DANIEL, T.F. 1993. Taxonomic and geographic notes on Central American Acanthaceae. Proc. Calif. Acad. Sci. 48:119–130.

DANIEL, T.F. 1998. Pollen morphology of Mexican Acanthaceae: diversity and systematic significance. Proc. Calif. Acad. Sci. 50:217–256.

DANIEL, T.F. 1999. Taxonomic and distributional notes on Neotropical Justicia (Acanthaceae). Proc. Calif. Acad. Sci. 51:483–492.

DANIEL, T.F. 2003. A reconsideration of Megalostoma (Acanthaceae), a new species, and recognition of a new section of Justicia. Proc. Calif. Acad. Sci. 54:371–380.

DANIEL, T.F. 2011. Justicia (Acanthaceae) in Texas. J. Bot. Res. Inst. Texas 5:595–618.

DANIEL, T.F. & L.A. MCDADE. 1995. Additions to the Acanthaceae of Panama. Ann. Missouri Bot. Gard. 82:542–548.

DANIEL, T.F. & D.C. WASSHAUSEN. 1990. Three new species of Justicia (Acanthaceae) from Panama. Proc. Calif. Acad. Sci. 46:289–297.

D'ARCY, W.G. 1987. Flora of Panama. Checklist and index. Part I. Monogr. Syst. Bot. Missouri Bot. Gard. 17:1–328.

DURKEE, L.H. 1978. Acanthaceae. In: R.E. Woodson & R.W. Schery, eds. Flora of Panama. Ann. Missouri Bot. Gard. 65:155–248.

DURKEE, L.H. 1986. Acanthaceae. In: W. Burger, ed. Flora Costaricensis. Fieldiana, Bot. 18:1–92.

DURKEE, L.H. 1999. Five new taxa and two new combinations of Acanthaceae from Central America. Novon 9:503–510.

DURKEE, L.H. & L.A. MCDADE. 1996. Three new species of Justicia (Acanthaceae) from Costa Rica. Novon 6:13–21.

GIBSON, D.N. 1972. Studies in American plants, III. Fieldiana, Bot. 34:57–87.

GÓMEZ-LAURITO, J. & B.E. HAMMEL. 1994. New species in the Acanthaceae of Costa Rica. Novon 4:350–361.

GRAHAM, V.A.W. 1988. Delimitation and infra-generic classification of Justicia (Acanthaceae). Kew Bull. 43:551–624.

KARGER, D.N., M. KESSLER, M. LEHNERT, & W. JETZ. 2021. Limited protection and ongoing loss of tropical cloud forest biodiversity and ecosystems worldwide. Nat. Ecol. Evol. 5:854–862. https://doi.org/10.1038/s41559-021-01450-y. Accessed June 2023.

KIEL, C.A. T.F. DANIEL, I. DARBYSHIRE, & L.A. MCDADE. 2017. Unraveling relationships in the morphologically diverse and taxonomically challenging “justicioid” lineage (Acanthaceae: Justicieae). Taxon 66:645–674.

LEONARD, E.C. 1958. The Acanthaceae of Colombia. Contr. U.S. Natl. Herb. 31(3):323–781.

MANZITTO-TRIPP, E.A., I. DARBYSHIRE, T.F. DANIEL, C.A. KIEL, & L.A. MCDADE. 2022. Revised classification of Acanthaceae and worldwide dichotomous keys. Taxon 71:103–153.

SMITH, H. J., C. MORAN, O. LACHENAUD, & I. DARBYSHIRE. 2019. Justicia gigantophylla (Acanthaceae), an endangered litter-gathering species from southern Cameroon. Pl. Ecol. Evol. 152:546-553.

ULLOA ULLOA, C. (& 23 others). 2018 onwards. Vascular plants of the Americas (VPA) website. Tropicos, Botanical Information System at the Missouri Botanical Garden, St. Louis, Missouri, USA. http://www.tropicos.org/Project/VPA. Accessed June 2023.

WALKER, J.W. & J.A. DOYLE. 1975. The bases of angiosperm phylogeny: palynology. Ann. Missouri Bot. Gard. 62:664–723.

WASSHAUSEN, D.C. 1989. New and interesting species of Acanthaceae from Colombia. Revista Acad. Colomb. Ci. Exact. 17:249–257.

WOOD, J.R.I. 1988. Colombian Acanthaceae—some new discoveries and some reconsiderations. Kew Bull. 43:1–51.

WOOD, J.R.I. 2009. New names, combinations and synonyms in Justicia and Stenostephanus (Acanthaceae). Kew Bull. 64:49–55.

WOOD, J.R.I. 2015. Justicia. In: R. Bernal, S.R. Gradstein, & M. Celis, eds. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Natu-rales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantascolombia.unal.edu.co. Accessed June 2023.

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Published

2024-07-09

How to Cite

Daniel, T. F., & Vargas P., M. G. (2024). Justicia darienensis (Acanthaceae: Justicieae: Justiciinae), a new species endemic to a tropical sky island in Panama. Journal of the Botanical Research Institute of Texas, 18(1), 79–86. https://doi.org/10.17348/jbrit.v18.i1.1339