Monteiroa catharinensis Krapovickas (1962: 63-65)

Grings, Martin & Boldrini, Ilsi Iob, 2025, Synopsis of Monteiroa (Malvaceae, Malvoideae), Phytotaxa 714 (2), pp. 129-156 : 135-137

2. Monteiroa catharinensis Krapovickas (1962: 63-65) . Holotype: BRAZIL. Santa Catarina. Bom Retiro, Fazenda Campo dos Padres, 1650 m, rocky stream bank by house, 17–19 November 1956, L. B. Smith, R. Reitz & R. M. Klein 7723 (LIL!; isotypes: CTES barcode 0013675! #, HBR!, US 00098194! #, NY barcode 00221877! #, P barcode 00156877! #, R 000200397 ! [digital image]). Figures 3 and 22 .

Taxonomic notes: —The species is characterized by: prostrate to scrambler shrubs; stems densely hispid; great flowers (petals 1.6–1.8 × 1.3–1.7 cm); bullate, cordate and 3–5-lobed leaves; epicalyx bracts 1.2–1.9 × 0.3–1 cm.

Distribution, habitat and conservation status:—This species occurs in Brazil ( Santa Catarina) ( Figure 4 ), and grows in margin of rivers, at elevations above 1300 m, in the highland grasslands in ecotone with the Araucaria forests , in the Provincia Paranense ( Cabrera & Willink 1973). With the available records the species presents an EOO of 942.441 Km² and an AOO of 40km ². Although it can be considered EN by the EOO and AOO, conditions B(a), B(b) and B(c) were not met. Therefore, the species is here considered Least Concern (LC). However, the situation of the species must be monitored, because it occurs in a very small area of the State of Santa Catarina, Brazil.

Representative specimens: — BRAZIL. Santa Catarina. Bom Retiro, Fazenda Campo dos Padres. Rocky banks, 1650 m, 17 November 1956, L. B. Smith, R. Reitz, R. M. Klein 7723 ( HBR) ; Rio Rufino, Fazenda Santo Antônio, 1 November 2012, M. M. P. Floriani 282 ( LUSC). Urubici , Parque Nacional de São Joaquim , Santa Bárbara , WGS 84 28° 8’32.67”S 49°38’7.56”O, 1364 m, 11 November 2019, M. Grings 2085 ( ICN) ; Urupema, Cachoeira que congela, WGS 84 27º55’39” S, 49º51’19”W, 1561m, 06 November 2013, A. C. Cervi, E. Barboza, J. Cordeiro 10142 ( MBM) .

Figures

FIGURE 3. Monteiroa catharinensis. A. Flower. B. Inflorescence. C. Mature schizocarp. D. Abaxial surface of leaf. E. Adaxial surface of leaf. F. Branch with leaves and flowers. G. Habit. H. Stipule and hispid stem. I. Epicalyx bracts. J. Flower with epicalyx, calyx and corolla. Photographs by Martin Grings.

FIGURE 4. Geographic distribution map of Monteiroa catharinensis. Elevations from 0 to 1800 m. The species occurs above 1300 m.

FIGURE 22. Mericarps of Monteiroa. A. M. bullata. B. M. catharinensis. C. M. dusenii. D. M. glomerata. E. M. hatschbachii. F. M. ptarmicifolia. G. M. reitzii. H. M. rubra. I. M. smithii. Scale bars 1 mm. Photographs by Martin Grings.