Chigua (genus)

For other uses, see Chigua.

Chigua was formerly recognized as a genus of cycads in the family Zamiaceae containing two species described in 1990. It was re-described as a single species in the genus Zamia in 2009.

The scholarly use of Chigua for a cycad was first applied to a plant collected in 1918 by Francis W. Pennell in northern Colombia. The Type was not reported again until re-located by Rogrigo Bernal in 1986. Dennis Stevenson described the genus and two species, C. restrepoi and C. bernalii, in 1990. It was recognized that Chigua was very closely related to Zamia and might indeed be nested in Zamia.[1]

Anders Lindström reclassified C. restrepoi as Z. restrepoi and C. bernalii as a synonym of Z. restrepoi in 2009.[2][3]

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  1. ^ Stevenson, Dennis Wm. (1 May 2004). "Cycads of Colombia". The Botanical Review. 70 (2): 198. doi:10.1663/0006-8101(2004)070[0194:COC]2.0.CO;2. ISSN 1874-9372.
  2. ^ "Zamia restrepoi". cycadlist.org. Retrieved 2024-10-20.
  3. ^ Lindstrom, Anders; Nabib, Sadaf; Dong, Shanshan; Dong, Yiqing; Liu, Jiang; Calonje, Michael; Stevenson, Dennis; Zhang, Shouzhou (2024). "Transcriptome sequencing data provide a solid base to understand phylogenetic relationships, biogeography and reticulated evolution of the genus Zamia L. (Cycadales, Zamiaceae)". Annals of Botany. XX. Results: Phylogenetic placement of clades. doi:10.1093/aob/mcae065. PMID 38900840.