Aylostera pulvinosa description


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The original description of Rebutia (Aylostera) pulvinosa was published in Taxon (1963) p. 29, the journal of the International Association for Plant Taxonomy, IAPT by Friedrich Ritter.

Here is an excerpt of the main points, but you should look up the original description for more details. Translated from the German.

Rebutia pulvinosa (subg. Aylostera) Ritter & Buining, sp. nova, a R. albipilosa Ritter (cf. speciem praecedentem 3) recedit: corpore 2,5-3 mm diam.; costis in tuberculos valde distinctos solutis; areolis 0,75-0,5 mm diam.; spinis minus tenuibus, radialibus 15-22, 1,5-3 mm longis, centralibus 6, fortioribus, brunneis; floribus 18 mm longis, 15 mm diam.; ovario globoso, 4 mm diam.; tubo florali +/- 10 mm longo, albo-setaceo; tepalis 7 mm longis, 3-4 mm latis, apice emarginatis, aurantiacis; staminibus biseriatis; stylo 13 mm longo; fructu et seminibus multo minoribus.

Habitat: In a gorge of the Rio Playa, northeast of Tarija, Bolivia. Collected as FR766.