Scyphostelma purpurascens (Benth.) Liede, Meve & Y. M. Pineda, comb. nov.

≡ Metastelma purpurascens Benth., Pl. Hartw.: 215. 1845.

– Holotype: Ecuador, near the town of Quito, 1844, Hartweg 1191 (K000197128!; isotypes: BM000796239 digital image!, E00259776 digital image!, F V0043858 F digital image!, G00177152, G00177153 digital image!, LD1219349 digital image!) . – Fig. 13.

Remarks — Scyphostelma purpurascens belongs to the S. microphyllum group of species as suggested by the small leaves (4–15 × 2–3 mm) on long as well short shoots and flowers (<5 mm in diam.). Significant for S. purpurascens is a gynostegial corona much overtopping a sessile gynostegium, consisting of staminal corona lobes that are transversely rectangular in the basal half while the apical half terminates into a narrowly lanceolate, adaxially canaliculate tooth.

This species was not included in the phylogenetic analysis.