Monteiroa glomerata (Hook. & Arn.) Krapovickas, 1951

4. Monteiroa glomerata (Hook. & Arn.) Krapovickas View in CoL 242, (1951: 242). ≡ Malva glomerata Hooker et Arnott (1833:

151). Holotype: “woods of the Porana, Tweedie”, non Malva glomerata Hortul. ex DC, 1824 . Prodr. 1: 433, Buenos

Aires, J. Tweedie 1037 (K barcode 000528409! #). ≡ Malvastrum glomeratum (Hook. & Arn.) Griseb., Symb. Fl.

Argent.: 42, 1879. Figures 7 View FIGURE 7 and 22 View FIGURE 22 .

= Malva concinna Knowles & Westcott (1837: 81-82) View in CoL , “seeds received by Mrs. Charles Shaw, of Birmingham, from South America”. Lectotype: fig. 38! (designated by Krapovickas 2003).

= Malvastrum Garckeanum K. Schumann (1891: 267-268) View in CoL , “Uruguaria, in arenosis humidis prope Montevideo, Arechavaleta n. 288, fi. Decembri”. (B?) Lectotype: tab. 52, fig. 1! (designated by Krapovickas 2003).

Taxonomic notes:—This species is characterized by it erect, cespitose or scrambling habit, up to 2, 5 m high; young stems with sparse stellate trichomes, sometimes tomentose; leaves one to twice more larger than wider, triangular, base cordate, rarely truncate, sometimes hastate and 3–5-lobed, crenate-dentate, both surfaces with sparse stellate trichomes, sometimes dense in some individuals, almost tomentose; flowers light pink to purple; epicalyx bracts 3–4 × 1 mm, shorter than calyx; corolla persistent in fruit, only species with this character in the genus.

Distribution, habitat and conservation status: —Occurs in Brazil ( Paraná, Santa Catarina and Rio Grande do Sul States), Argentina ( Buenos Aires and Entre-Rios Provinces) and Uruguay ( Canelones, Colonia, Lavalleja, Maldonado, Montevideo, Rio Negro and São José Departments) ( Figure 8 View FIGURE 8 ). Grows in wetlands and border of rivers in four phytogeographic provinces of Cabrera and Willink (1973), Provincia Pampeana (Pampa grasslands), Provincia Paranense ( Araucaria Forests and highland grasslands), Provincia del Espinal and Provincia del Monte. With the available records the species presents an EOO of 740,364.682 Km² and an AOO of 324 km ², and can be considered Least Concern by the EOO and Endangered by the AOO. However, conditions B1[abc] were not met, being the most frequent species and with the widest distribution of the genus. Therefore, the species is here considered Least Concern (LC).

Representative specimens: — ARGENTINA. Entre Rios. Gualeguaychú. Ea Rincón de Landa, sobre río Uruguay, Arroyo Malo y zanja de Flores, 31 October 1990, N. M. Bacigalupo & R. Fortunato 1425 (SI). BRAZIL. Paraná. Palmas, Morro da Baliza-Lageadinho, 950 m, 20 November 1972, G Hatschbach 30739 (MBM). Rio Grande do Sul. Caxias do Sul, Faxinal, WGS 84 29° 5’19.86”S 51° 1’46.83”O, 711, 14 October 2018, M. Grings 1928 (ICN). Pelotas, Laranjal, 7 m, 07 October 2021, M. Grings 2279 (ICN). Santa Catarina. Capão Alto, BR 116, WGS 84 UTM 22 J 0535437 6888208, 968 m, 16 October 2018, M. Grings 1941 (ICN). URUGUAY. Canelones. Bañado Pando, 08 November 1947, D. Legrand 2671 (MVM.)