Kaliwatan sa tanom nga lawrel ang Illigera cava.^[1] Una ning gihulagway ni Franciscus Jozef Breteler ug Jan Johannes Wieringa.^[2] Ang Illigera cava sakop sa kahenera nga Illigera, ug kabanay nga Hernandiaceae.^[1][3]

Kini nga matang hayop na sabwag sa:

• Gabon
• Congo
  • Republika sa Congo

Walay nalista nga matang nga sama niini.^[1]

1. ↑ ^{1.0 1.1 1.2} Roskov Y., Kunze T., Orrell T., Abucay L., Paglinawan L., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Decock W., De Wever A., Didžiulis V. (ed) (2019). "Species 2000 & ITIS Catalogue of Life: 2019 Annual Checklist". Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X. TaxonID: 53463788. Retrieved 2019-11-11. {{cite web}}: |author= has generic name (help)CS1 maint: multiple names: authors list (link)
2. ↑ Breteler & Wieringa (2008) , In: Blumea 53(2): 455
3. ↑ Hassler M. (2019). World Plants: Synonymic Checklists of the Vascular Plants of the World (version Nov 2018). In: Species 2000 & ITIS Catalogue of Life, 2019 Annual Checklist (Roskov Y., Ower G., Orrell T., Nicolson D., Bailly N., Kirk P.M., Bourgoin T., DeWalt R.E., Decock W., Nieukerken E. van, Zarucchi J., Penev L., eds.). Digital resource at www.catalogueoflife.org/annual-checklist/2019. Species 2000: Naturalis, Leiden, the Netherlands. ISSN 2405-884X.