Aylostera zecheri description


Rebutia (Aylostera) zecheri was first described by Walter Rausch in Succulenta 56(2), pp. 29 & 30, 1977.

Here is the text of the description in Latin, as published. You should look up the original for further details in Dutch as well as a colour photograph.

Rebutia (Aylostera) zecheri Rausch spec. nova

Simplex, globosa, ad 25 mm diametiens, glauca, radice rapiformi carnosa; costis 12-13, recte ad spiraliter adscendentibus, crenis transversis in gibberes 3-4 mm longos, verrucosos divisis; areolis ovalibus, 2 mm longis, albo-tomentosis; aculeis marginalibus 9-11, radiantibus, setosis, albis, ad 3 mm longis; aculeo centrali 0.

Floribus 30 mm longis et diametientibus; ovario et receptaculo olivaceo, squamis fuscis, pilis albis et setis fuscis tecto; phyllis perigonii exterioribus violaceo-roseis, medio-viridistriatis; phyllis perigonii interioribus rotundis, aurantiacis, medio-violaceo-roseo-striatis; fauce violaceo-rosea, filamentis roseis et sursum albis, stylo manubrii modo cum receptaculo connato, flavo, stigmatibus 6 flavis. Fructu globoso, 5 mm diametiente, ochraceo, pilis et setis albis tecto. Seminibus Aylosterae typo, paulum maioribus et tunica arillosa reliqua tectis.

Patria: Bolivia, prope Iscayach apud Pueblo Viejo, 3.600 m ait.

Typus: Rausch 650, depositus in Herbario Collectionis Plantarum Succulentarum Municipali Turicensi, Helvetia.

English translation

Rebutia (Aylostera) zecheri Rausch spec. nova

Single, spherical, up to 25mm in diameter, glaucous, with a fleshy tap-root; 12 – 13 ribs ascending in a sprial, crossed by grooves between 3 – 4mm long wart-like tubercles; areoles oval, 2mm long, with white wool; 9 – 11 marginal spines, spreading, bristly, white, up to 3mm long; no central spines.

Flowers 30mm long and the same wide; ovary and receptable olive green, with dark scales, white wool and brown bristles; outer petals violet-pink with a greenish central stripe; inner petals rounded, orange, with a violet-pink central stripe; throat violet-pink, stamens pink with white above, style yellow, fused to the receptacle like a handle, 6 yellow stigmas. Fruit spherical, 5mm in diameter, ochre, with white hairs and bristles. Seed as for Aylosteras, a little larger with remains of the skin attached.

Habitat: near Iscayachi next to Pueblo Viejo, Bolivia, at 3,600m altitude.

Type: Rausch 650, deposited in the Herbarium of the Municipal Succulent Plant Collection in Zurich, Switzerland.