Abstract
Philodendron josephii sp. nov. is described from terra firme tropical humid forest in Amazonas state, Brazil. This new species is similar in its leaf morphology to two other Amazonian species, P. maximum and P. megalophyllum, but differs by characters of the prophyll, petiole, flagelliform branches and ovary. The description is accompanied by illustrations, notes on the habitat, geographic distribution and conservation status.
References
Beentje, H. (2012) The Kew Plant Glossary: An Illustrated Dictionary of Plant Terms (with illustrations by Williamson, J.). Revised edition. Royal Botanic Gardens Kew, UK, 164 pp.
Boelter, C.R., Dambros, C.S., Nascimento, H.E.M. & Zartman, C.E. (2014) A tangled web in tropical treetops: effects of edaphic variation, neighbourhood phorophyte composition and bark characteristics on epiphytes in a central Amazonian forest. Journal of Vegetation Science 25: 1091–1099. https://doi.org/10.1111/jvs.12154
Boyce, P.C. & Croat, T.B. (2011 onwards) The Überlist of Araceae, Totals for Published and Estimated Number of Species in Aroid Genera. http://www.aroid.org/genera/180211uberlist.pdf. (accessed: 20 August 2022).
BFG—The Brazil Flora Group (2015) Growing knowledge: an overview of seed plant diversity in Brazil. Rodriguésia 66: 1085–1113. https://doi.org/10.1590/2175-7860201566411.
Croat, T.B. (1997) A revision of Philodendron subgenus Philodendron (Araceae) for Mexico and Central America. Annals of the Missouri Botanical Garden 84: 311–704. https://doi.org/10.2307/2992022
Dauby, G., Stévart, T., Droissart, V., Cosiaux, A., Deblauwe, V., Simo-Droissart, M., Sosef, M.S.M., Lowry, P.P., Schatz, G.E., Gereau, R.E. & Couvreur, T.L.P. (2017) ConR: An R package to assist large-scale multispecies preliminary conservation assessments using distribution data. Ecology and Evolution 7: 11292–11303. https://doi.org/10.1002/ece3.3704
Flora and Funga do Brasil (2022) Jardim Botânico do Rio de Janeiro. http://floradobrasil.jbrj.gov.br/ (accessed: 20 May 2023).
IUCN (2019) Guidelines for Using the IUCN Red List Categories and Criteria. Version 14. Standards and Petitions Subcommittee. http://www.iucnredlist.org/documents/RedListGuidelines.pdf (accessed: 26 July 2020).
Krause, K. (1913) Philodendrinae. Das Pflanzenreich 60: 1–143.
Mayo, S.J. (1989) Observations of the gynoecial structure in Philodendron (Araceae). Botanical Journal of the Linnean Society 100: 139–172.
R Core Team (2020) R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. https://www.R-project.org/ (accessed: 23 July 2020).
Sakuragui, C.M., Calazans, L.S.B., de Oliveira, L.L., de Morais, É.B., Benko-Iseppon, A.M., Vasconcelos, S., Schrago, C.E.G. & Mayo, S.J. (2018) Recognition of the genus Thaumatophyllum Schott− formerly Philodendron subg. Meconostigma (Araceae)− based on molecular and morphological evidence. PhytoKeys 98: 51–71. https://doi.org/10.3897/phytokeys.98.25044
Schott, H.W. (1829) Für Liebhaber der Botanik. Wiener Zeitschrift für Kunst, Literatur, Theater und Mode 94: 779–780.
Schott, H.W. (1832) Araceae. In: Schott, H.W. & Endlicher, S. (Eds.) Meletemata Botanica. Vienna, pp. 16–22.
Schott, H.W. (1856) Synopsis Aroidearum Complectens Enumerationem Systematicam Generum et Specierum Huju Ordinis. Typis Congregationis Mechitharisticae, Vienna, 140 pp.
Schott, H.W. (1859) Aroideen Skizzen. Bonplandia (Hannover) 7: 26–31.
Schott, H.W. (1860) Prodromus systematis aroidearum. Typis congregationes mechitharisticae, Vindobonae, 620 p.
Soares, M.L.C. (1996) Floristic survey of the genus Philodendron Schott (Araceae) In the Forest Reserve Ducke– Manaus–AM. Masters Dissertation, INPA, 179 pp.
Vasconcelos, S., Soares, M.L., Sakuragui, C.M., Croat, T.B., Oliveira, G. & Benko-Iseppon, A.M. (2018) New insights on the phylogenetic relationships among the traditional Philodendron subgenera and the other groups of the Homalomena clade (Araceae). Molecular Phylogenetics and Evolution 127: 168–178.