Hippeastrum subg. Tocantinia
| Hippeastrum subg. Tocantinia | |
|---|---|
Scientific classification 
| |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Amaryllidaceae |
| Subfamily: | Amaryllidoideae |
| Genus: | Hippeastrum |
| Subgenus: | Hippeastrum subg. Tocantinia (Ravenna) Nic.García[1] |
| Type species | |
| Hippeastrum mirum | |
| Species | |
|
See here | |
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| |
| It is endemic to Brazil[3] | |
Hippeastrum subg. Tocantinia is a subgenus of the genus Hippeastrum endemic to Brazil.[3]
Description
[edit]Vegetative characteristics
[edit]Hippeastrum subg. Tocantinia are bulbous, 30–70 cm tall[3] perennial herbs[4] with globose bulbs bearing 3–8 annual leaves.[3]
Generative characteristics
[edit]The single-flowered inflorescence[3] with a hollow or solid,[4] 15–70 cm long, and 2–7 mm wide scape bears a fragrant, zygomorphic flower.[3]
Cytology
[edit]The chromosome count is 2n = 22.[3]
Taxonomy
[edit]It was first published as Tocantinia Ravenna by Ravenna in 2000 with Tocantinia mira Ravenna as the type species.[2] It was merged into the genus Hippeastrum Herb. as Hippeastrum subg. Tocantinia (Ravenna) Nic.García by Nicolás García Berguecio in 2019.[1]
Species
[edit]It has three species:
- Hippeastrum dutilhianum (Büneker, R.E.Bastian & C.M.Costa) Christenh. & Byng[3]
- Hippeastrum mirum (Ravenna) Christenh. & Byng[3]
- Hippeastrum stigmovittatum (Büneker, R.E.Bastian & C.M.Costa) Christenh. & Byng
Etymology
[edit]The subgeneric name Tocantinia refers to Tocantins, Brazil.[4]
Distribution and habitat
[edit]It is endemic to Brazil, where it occurs in the states of Bahia, Minas Gerais, and Tocantins.[3]
References
[edit]- ^ a b Hippeastrum subgen. Tocantinia (Ravenna) Nic.García. (n.d.). International Plant Names Index. Retrieved March 14, 2025, from https://www.ipni.org/n/77203202-1
- ^ a b Tocantinia Ravenna. (n.d.). International Plant Names Index. Retrieved March 14, 2025, from https://www.ipni.org/n/330331-2
- ^ a b c d e f g h i j 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.
- ^ a b c Büneker, H. M., Bastian, R. E., Soares, K. P., & Costa, C. M. (2016). The genus Tocantinia (Amaryllidaceae, Amaryllidoideae) and two new species from Brazil. Balduinia, (53), 01-14.