Habranthus gracilifolius

Familia: Amaryllidaceae
Subfamilia: Amaryllidoideae
Tribus: Hippeastreae
Subtribus: Hippeastrinae
Genus: Habranthus
Species: Habranthus gracilifolius
Name

Habranthus gracilifolius Herb., Bot. Mag. 51: t. 2464. (1824)
Synonyms

Homotypic
Amaryllis gracilifolia (Herb.) Schult. & Schult.f. in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15 bis 7: 813 (1830).
Hippeastrum gracilifolium (Herb.) Baker, J. Bot. 16: 82 (1878).
Zephyranthes gracilifolia (Herb.) G.Nicholson, Ill. Dict. Gard. 2: 107 (1885)
Heterotypic
Amaryllis gracilis Spreng., Syst. Veg. 4(2): 133 (1827)
Habranthus boothianus Herb., Amaryllidaceae: 424 (1837)
Habranthus gracilifolius var. boothianus Herb., Amaryllidaceae: 165 (1837)
Zephyranthes gracilifolia var. bijou E.Holmb., Anales Mus. Nac. Buenos Aires, ser. 3, 2: 78 (1903)
Zephyranthes gracilifolia var. bulula E.Holmb., Anales Mus. Nac. Buenos Aires, ser. 3, 2: 78 (1903)

Note: This does not appear to be equivalent to Zephyranthes graciliflora (Herb.) Nic.García (2020) without further analysis and, as the type of the genus, its tentative acceptance prevents complete synonymy with Zephyranthes as proposed by García et al., (2019)
References

Herbert, W. 1824. Botanical Magazine; or, Flower-Garden Displayed 51: t. 2464.
García, N., Meerow, A.W., Arroyo‐Leuenberger, S., Oliveira, R.S., Dutilh, J.H.A., Soltis, P.S. & Judd, W.S. 2019. Generic classification of Amaryllidaceae tribe Hippeastreae. Taxon 68(3): 481–498. DOI: 10.1002/tax.12062 Paywall PDF Reference page.
García, N. & Meerow, A.W. 2020. Corrigendum to: García & al., Generic classification of Amaryllidaceae tribe Hippeastreae [in Taxon 68: 481–498. 2019] Taxon 69(1): 208–209. DOI: 10.1002/tax.12208 Open access Reference page.
Govaerts, R. et al. 2020. Habranthus gracilifolius in World Checklist of Selected Plant Families. The Board of Trustees of the Royal Botanic Gardens, Kew. Published on the internet. Accessed: 2020 Oct. 1. Reference page.
International Plant Names Index. 2020. Habranthus gracilifolius. Published online. Accessed: Oct. 1 2020.