The original description of Rebutia (Aylostera) tropaeolipicta was published in Kakteen und andere Sukkulenten 28(4): 76, 1977, the journal of the Deutsche Kakteen-Gesellschaft, by Friedrich Ritter.

Here is the text in Latin as published, with my own English translation below. You should look up the original description for more details.

Rebutia tropaeolipicta Ritter spec. nov.

Solitaria, ca. 2 cm crassa, radice alba rapacea; costae ca. 12, ca. 3—4 mm altae, crenatae; areolae ca. 2 mm longae, 0,5 mm latae, 1,5-2,5 mm inter se remotae, lana fere carentes; spinae 10-14, solum marginales, pectinatae, 1,5-3,5 mm longae, basi fusca.

Flores ca. 35-38 mm longi ; ovarium lana alba non abundanti et interdum saeta alba instructum; stylus 2-3 mm cum tubo coalitus; sulcus nectarifer ca. 4 mm longus; tubus floralis 12 mm longus, interne pallidus, externe ut ovarium; filamenta roseopurpurea, superne flaveola; lacuna insertiorum ca. 7 mm; stylus viridis, stigmata flava, ca. 7, ca. 3 mm longa; petala 14 mm longa, 5—7 mm lata, spathulata, obtusa, colore tropaeoli (6), externa mucronata, pallide purpurea; semina brunneoatra, 1,2 mm longa, tenuiter tuberculata; habitat Mal Paso, Prov. Sud-Chichas, Bolivia.

Type collection FR 1114

English translation

Rebutia tropaeolipicta Ritter spec. nov.

Solitary, ca. 2cm thick, with a fleshy tap root; ca. 12 ribs, ca. 3 – 4mm high, notched; areoles ca. 2mm long, 0.5mm wide, 1.5mm – 2.5mm between each; almost no wool; 10 – 14 spines, marginal only, pectinate, 1.5 – 3.5mm long, brown at the base.

Flowers ca. 35 – 38mm long; ovary with sparse white wool and sometimes a few white bristles; style fused to the tube by 2 – 3mm; nectary groove ca. 4mm long; floral tube 12mm long, internally pale, externally as for the ovary; stamens pinkish purple, upper part yellowish; inserted into cavity ca. 7mm; style green, stigmas (7) yellow, ca. 3mm long; petals 14mm long, 5 – 7mm wide, spatulate, blunt, colour Nasturtium (6)*, outer petals pointed, pale purple; seed brownish black, 1.2mm long, finely warty; habitat Mal Paso, Prov. Sud-Chichas, Bolivia.

Type collection FR 1114.

*Ritter used Biesalski’s 1957 colour chart to aid colour descriptions. Colour No. 6 is orange.