Zephyranthes subg. Eithea is a subgenus of the genus Zephyranthes endemic to Brazil.
Description
Vegetative characteristics Zephyranthes subg. Eithea are 12–50 cm tall, bulbous plants with ovoid bulbs and 1–8 pseudopetiolate leaves. Generative characteristics The 1–6 pedicellate, zygomorphic, campanulate to infundibuliform flowers are produced on pseudo-umbellate inflorescences with 8–30 cm long, and 2–6 mm wide scapes.
Cytology The chromosome count is 2n = 18.
Taxonomy It was first published as Eithea by Pedro Felix Ravenna in 2002Eithea Ravenna. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/20007210-1 with Eithea blumenavia as the type species.Missouri Botanical Garden. (n.d.-l). Eithea Ravenna. Tropicos. Retrieved January 28, 2025, from https://www.tropicos.org/name/100184394 It was included into the genus Zephyranthes as Zephyranthes subg. Eithea published by Nicolás García Berguecio in 2019.Zephyranthes subgen. Eithea (Ravenna) Nic.García. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/77203263-1García, N., Meerow, A. W., Arroyo‐Leuenberger, S., Oliveira, R. S., Dutilh, J. H., Soltis, P. S., & Judd, W. S. (2019). Generic classification of Amaryllidaceae tribe Hippeastreae. Taxon, 68(3), 481-498. Species It has two species: Zephyranthes blumenavia Zephyranthes lagopaivae
Conservation Zephyranthes blumenavia is Endangered (EN), and Zephyranthes lagopaivae is Critically Endangered (CR).Campos-Rocha, A., Meerow, A. W., Lopes, E. F. M., Semir, J., Mayer, J. L. S., & Dutilh, J. H. A. (2017). Eithea lagopaivae, a new critically endangered species in the previously monotypic genus Eithea Ravenna (Amaryllidaceae). PhytoKeys, (85), 45.
References