Paposoa


Paposoa laeta is the only species of the monotypic genus Paposoa in the family Amaryllidaceae endemic to northern and central Chile.

Description

Vegetative characteristics

Paposoa laeta is a bulbous, over 10 cm tall plant with ovoid, tunicate bulbs bearing flat, linear, 30–60 cm long, and 5–9 mm wide leaves.

Generative characteristics

The inflorescence with a hollow, 10–30 cm long, and 2–4 mm wide scape bears 1–7 violet to purple, zygomorphic flowers. The flowers have 6 tepals. The androecium consists of 6 stamens. The gynoecium consists of 3 carpels. The trilocular capsule fruit bears flat, shiny, black seeds.

Cytology

The chromosome count is 2n = 16.

Taxonomy

It was described as Rhodophiala laeta by Rodolfo Amando Philippi in 1860. A new genus Eremolirion was described by Nicolás García Berguecio in 2019, but due to confusion with the similarly named Eremiolirion , a new genus Paposoa and species Paposoa laeta was required and published by García in 2020. Within the tribe Hippeastreae, it is placed in the subtribe Traubiinae.

Etymology

The generic name Paposoa refers to Paposo, Chile. The specific epithet laeta means bright,

Distribution and habitat

It occurs in the Atacama and Antofagasta regions, where it is found in desert and desert fog oases.

Conservation

It has a restricted habitat and distribution.