Vol. 79 No. 2 (2024)
Articles

Schismatoglottideae (Araceae) of Borneo LXXVII — Circumscribing Schismatoglottis sensu stricto, and seven new genera

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  • Wong Sin Yeng,
  • Peter C. Boyce
Wong Sin Yeng
Institute of Biodiversity and Environmental Conservation, Universiti Malaysia Sarawak, 94300 Kota Samarahan, Sarawak
Peter C. Boyce
Dipartimento di Biologia, Centro Studi Erbario Tropicale (herbarium FT), University of Florence, Via G. La Pira 4, 50121, Firenze
DOI: https://doi.org/10.36253/jopt-16015

Published 2024-09-03

Keywords

  • Araceae,
  • Schismatoglottideae,
  • monophyly,
  • new genera

How to Cite

Sin Yeng, W., & Boyce, P. C. (2024). Schismatoglottideae (Araceae) of Borneo LXXVII — Circumscribing Schismatoglottis sensu stricto, and seven new genera. Webbia, 79(2), 255–289. https://doi.org/10.36253/jopt-16015

Copyright (c) 2024 Wong Sin Yeng, Peter C. Boyce

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Based on published molecular analyses combined with morphological data, the genus Schismatoglottis is restricted to species with hapaxanthic shoots and a caducous spathe limb shed almost always in a single piece. Thus defined, Schismatoglottis comprises sixty-nine accepted species, twenty-four provisionally accepted names, and three species of doubtful affinity [Schismatoglottis conoidea, S. convolvula, and S. priapica] that are retained provisionally in Schismatoglottis pending further study. Eight-five species hitherto assigned to Schismatoglottis with pleionanthic shoots and spathe limbs variously senescing are transferred into seven new genera: Aia (monotypic), Ayuantha (four species), Bau (26 species), Borneoa (22 species), Ibania (12 species), Sarawakia (five species), and Tweeddalea (15 species). All genera are illustrated, together with representative species of Schismatoglottis s.s., and a species-finder list provided as an Appendix. The changes presented here take the vascular plant Bornean flora to 1601 native genera.

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References

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