Monographs Details: Pavonia revoluta Krapov. & Cristóbal
Authority: Fryxell, Paul A. 1999. Cavanilles (Malvaceae). Fl. Neotrop. Monogr. 76: 1-284. (Published by NYBG Press)
Description:Species Description - Shrubs 1.5 m tall, the stems minutely pubescent with stellate subarachnoid hairs. Leaf blades triangular, mostly 2-3 x 1-1.5 cm, basally cordate, very coarsely crenate-dentate, acute, palmately 5-nerved, evenly pubescent above and beneath with mostly simple hairs ca. 0.5 mm long and some stellate hairs; petioles 1-1.5 cm long; stipules subulate, 1-2 mm long. Flowers solitary in the leaf axils, the pedicels 1-2 cm long, slender, distally pilose; involucellar bracts 5, lance-ovate, 6-7 x 3-3.5 mm, basally pilose, spreading or somewhat reflexed in bud; calyx 6-8 mm long, minutely stellate-pubescent; corolla 1.5-2 cm long, white with red center and red veins; staminal column 4-5 mm long, the filaments 1 mm long; styles emergent from the column, purplish. Fruits ca. 7 mm diam., minutely puberulent; mericarps 4 mm high, carinate, the crest prolonged and acute apically, reticulate-veined and with small excrescences on each side toward apex. Chromosome number, 2n = 56 (Krapovickas & Cristóbal, 1962).

Discussion:Illustrations. Krapovickas & Cristóbal (1962: figs. 1H, 4).

The Stuckert specimen (Stuckert 1247) from Puesto del Paraíso (Córdoba, Argentina) was given a tentative manuscript name by R. E. Fries, together with an appended description (in Swedish), but this name was evidently never published. Fries regarded Pavonia hastata forma brevifolia Gürke (see P. cymbalaria) as a synonym of his proposed new species. Pavonia revoluta, as the name suggests, is characterized by the possession of spreading to reflexed involucellar bracts.
Distribution:Bolivia South America| Tarija Bolivia South America| Argentina South America| Córdoba Argentina South America| Entre Ríos Argentina South America| San Luis Argentina South America| Tucuman Argentina South America|