Aylostera yuncharasensis description


The original description of Lobivia (Aylostera) atrovirens var. yuncharasensis (yuncharasensis) was published in Lobivia 85 (1987), p. 137, by Walter Rausch.

Here is the text of the description in Latin as published. You should look up the original for more information as well as colour photographs of the plants. The English translation below is my own.

Lobivia atrovirens Backeberg var. yuncharasensis Rausch var. nov.

Simplex, globosa ad subelongata, 25 mm diametiens, obscure‑glauca et violaceo‑suffusa, radice rapiformi; costis 12, rectis, sulcis transversis in gibberes rotundos, 3 mm longos et latos divisis; areolis ovalibus, 1.5 mm longis, fusco‑tomentosis; aculeis 4 paribus et uno deorsum directo, accumbentibus, ad 4 mm longis, interdum etiam uno validiore sursum directo; aculeo centrali 0.

Floribus 35 mm longis et diametientibus, ovario et receptaculo ochraceo, squamis perviridibus et lana alba tecto; phyllis perigonii exterioribus lanceolatis, violaceo‑roseis, medio‑fusco‑viridi‑striatis; phyllis perigonii interioribus aurantiacis, medio‑rubro‑striatis; fauce viridulo‑alba, filamentis rubris, stylo et stigmatibus (8) viridibus.

Fructu seminibusque Lobiviae atrovirentis Backbg. modo, paulum maioribus.

Patria: Bolivia, Tarija, Yunchara. Typus: Rausch 91.

English translation.

Lobivia atrovirens Backeberg var. yuncharasensis Rausch ssp. nov.

Solitary, spherical to slightly elongated, 25 mm diameter, suffused glaucous and violet, tap rooted; 12 ribs, straight, furrows crossed by 3 mm long round tubercles; areoles oval, 1.5 mm long, brownish-felted; 4 pairs of spines plus one pointing downwards, appressed, up to 4 mm long, and sometimes a stronger one upwards; no central spines.

Flowers 35 mm long and broad, ovary and receptacle ochre buff to ochre, covered by hair and white wool; outer petals lanceolate, violet pink, brown-green central stripe; inner petals yellow with red central stripe; the throat greenish-white, red stamens, style and stigmas (8) green.

Fruit and seed like Lobivia atrovirens Backbg. but a little larger.

Habitat: Bolivia Tarija, Yunchara. Type: Rausch 91.