Zephyranthes subg. Eithea

Zephyranthes subg. Eithea
	Zephyranthes blumenavia
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Monocots
Order:	Asparagales
Family:	Amaryllidaceae
Subfamily:	Amaryllidoideae
Genus:	Zephyranthes
Subgenus:	Zephyranthes subg. Eithea; (Ravenna) Nic.García
Type species
	Zephyranthes blumenavia; (K.Koch & C.D.Bouché ex Carrière) Nic.García & Dutilh
Species
	See here
	It is endemic to Brazil

Zephyranthes subg. Eithea is a subgenus of the genus Zephyranthes^[2]^[1] endemic to Brazil.^[2]

Description

Vegetative characteristics

Zephyranthes subg. Eithea are 12–50 cm tall, bulbous plants with ovoid bulbs and 1–8 pseudopetiolate leaves.^[2]

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.^[2]

Cytology

The chromosome count is 2n = 18.^[2]

Taxonomy

It was first published as Eithea Ravenna by Pedro Felix Ravenna in 2002^[3] with Eithea blumenavia (Carrière) Ravenna as the type species.^[4] It was included into the genus Zephyranthes Herb. as Zephyranthes subg. Eithea (Ravenna) Nic.García published by Nicolás García Berguecio in 2019.^[5]^[2]

Species

It has two species:^[2]

Zephyranthes blumenavia (K.Koch & C.D.Bouché ex Carrière) Nic.García & Dutilh
Zephyranthes lagopaivae (Campos-Rocha & Dutilh) Nic.García & Dutilh

Conservation

Zephyranthes blumenavia is Endangered (EN), and Zephyranthes lagopaivae is Critically Endangered (CR).^[6]

References

^ ^a ^b Missouri Botanical Garden. (n.d.-v). Zephyranthes subg. Eithea (Ravenna) Nic. García. Tropicos. Retrieved January 28, 2025, from https://www.tropicos.org/name/100496093
^ ^a ^b ^c ^d ^e ^f ^g ^h García, 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.
^ Eithea Ravenna. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/20007210-1
^ Missouri Botanical Garden. (n.d.-l). Eithea Ravenna. Tropicos. Retrieved January 28, 2025, from https://www.tropicos.org/name/100184394
^ Zephyranthes subgen. Eithea (Ravenna) Nic.García. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/77203263-1
^ 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.

[Tropicos_b-1] Missouri Botanical Garden. (n.d.-v). Zephyranthes subg. Eithea (Ravenna) Nic. García. Tropicos. Retrieved January 28, 2025, from https://www.tropicos.org/name/100496093

[García_et_al.,_2019-2] ^ ^a ^b ^c ^d ^e ^f ^g ^h García, 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.

[IPNI_a-3] Eithea Ravenna. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/20007210-1

[Tropicos_a-4] Missouri Botanical Garden. (n.d.-l). Eithea Ravenna. Tropicos. Retrieved January 28, 2025, from https://www.tropicos.org/name/100184394

[IPNI_b-5] Zephyranthes subgen. Eithea (Ravenna) Nic.García. (n.d.). International Plant Names Index. Retrieved January 28, 2025, from https://www.ipni.org/n/77203263-1

[Campos-Rocha_et_al.,_2017-6] 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.

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