Monographs Details: Pavonia xanthogloea Ekman
Authority: Fryxell, Paul A. 1999. Cavanilles (Malvaceae). Fl. Neotrop. Monogr. 76: 1-284. (Published by NYBG Press)
Family:Malvaceae
Description:Species Description - Shrubs 1.5-2 m tall, the stems minutely puberulent, the hairs stellate with intermingled glandular hairs, 0.1-0.2 mm long. Leaf blades triangular-ovate to oblong-hastate, mostly 2-6(-8) x 1-2.5 cm, basally truncate to subcordate, sometimes subhastately lobed, serrate, acute, palmately 3-5-nerved, discolorous, both surfaces with minute stellate hairs and simple glandular hairs intermingled, the pubescence of lower surface whitish, with setae 1 mm long at base of the blade beneath and often also on the distal end of the petiole; petioles 1-3 cm long, minutely puberulent and often setose distally on the abaxial side; stipules subulate, 3-5 mm long, puberulent. Flowers solitary in the leaf axils, the pedicels 1-3 cm long, slender; involucellar bracts 5, broadly spatulate or ovate, 5-7 x 2-3 mm, glandular-puberulent; calyx 5-7 mm long, glandular-puberulent; corolla 1.5-2 cm long, rose-pink with dark red center and dark veins, densely pubescent on margins of claw, otherwise glabrous; staminal column 5-7 mm long, dark red, the filaments 1-1.5 mm long; styles emergent from the column, reddish. Fruits 6-7 mm diam., minutely puberulent; mericarps 3.5 mm high, rugulose, obscurely carinate. Chromosome number, 2n = 56 (Krapovickas & Cristóbal, 1962).

Discussion:Illustrations. Ekman (1909: fig. 5); Krapovickas (1953: fig. 108D).

Pavonia xanthogloea has glandular-puberulent calyces, similar to P. viscidula, from which it is distinguished by having hairs 1 mm long at the distal end of the petiole, and similar to P. glandulosa, which is distinguished by its red corollas.
Distribution:Brazil South America| Rio Grande do Sul Brazil South America| Paraguay South America| Argentina South America| Buenos Aires Argentina South America| Corrientes Argentina South America| Misiones Argentina South America| Uruguay South America| Tacuarembó Uruguay South America|