Tuesday, November 8, 2022

[Botany • 2022] Hippeastrum abatinguara (Amaryllidaceae: Hippeastreae) • A Remarkable New Species from the Serra da Mantiqueira, Southeastern Brazil

 

Hippeastrum abatinguara Campos-Rocha & A.S.Medeiros, 

in Campos Rocha, da Silva Medeiros, Meerow, et al., 2022.

Abstract
Serra da Mantiqueira is the most important mountain range in eastern South America, known for its high levels of species richness and endemism. A new species of Amaryllidaceae endemic to the region was recently identified, described and illustrated herein. It can be recognized by its rupicolous habit, large bulbs, reaching 12 cm in diameter, annual, lorate leaves, white flowers with pink striations and perigonal tube up to 1.5 cm long. Comments on its habitat, conservation status, phenology data, photographs and illustrations are provided, as well as comparison with the most morphologically similar species. Known by only a single population, exposed to several types of threats and with limited guarantee of protection, Hippeastrum abatinguara is considered Critically Endangered. Additionally, a key to the species of Hippeastrum occurring in the Serra da Mantiqueira is presented, accompanied by photographs of these species in their natural habitats.

Keywords: Asparagales, Endemism, Hippeastreae, Minas Gerais, rock outcrop, threatened species, Monocots


Hippeastrum abatinguara Campos-Rocha & A.S.Medeiros

Hippeastrum abatinguara can be considered similar to H. brasilianum (Traub & Doran 1976: 40) Dutilh in Meerow et al. (1997: 17) due to its habitat and flower color pattern, but is readily distinguished by having a smaller perigone (up to 9.5 cm long vs. 14–23 cm in H. brasilianum), with pink striations on the tepals, absent in H. brasilianum. 

Etymology:—The specific epithet refers to an indigenous people who inhabited the southern region of the state of Minas Gerais and were decimated as a result of the colonization of their territory. The Abatinguaras would have lived on the banks of the Grande and Sapucaí rivers, and offered a strong resistance to the advance of the Bandeirantes (colonial crusaders) at the end of the 17th century (José 1965, Guimarães 2017). Awati-wára is a word of Tupi origin, an indigenous language, being a translation of ‘white man eaters’ (Guérios 1948, Michaelis 2015). It is also a call for the defense of Brazilian indigenous people, in a context of violence against these peoples and their territories (Bonilla & Capiberibe 2021, Ferrante & Fearnside 2021, CIMI 2022). The specific epithet is used here as a noun in apposition, in accordance with Article 23.1 of the International Code of Nomenclature (Turland et al. 2018).


Antonio Campos Rocha, Alexandre da Silva Medeiros, Alan William Meerow, Priscila Andre Sanz-Veiga, Ingrid Koch and Julie Henriette Antoinette Dutilh. 2022. A Remarkable New Species of Hippeastrum (Amaryllidaceae) from the Serra da Mantiqueira, Southeastern Brazil. Phytotaxa. 571(2); 197-208. DOI: 10.11646/phytotaxa.571.2.6