Sida santaremensis Monteiro (1936: 44)

Brandão, José Lourenço, Baracho, George Sidney, Sales, Margareth Ferreira De & Filho, Marcelo Paulino Viegas, 2017, Synopsis of Sida (Malvaceae, Malvoideae, Malveae) in the state of Pernambuco, Brazil, Phytotaxa 307 (3), pp. 205-227 : 219

17. Sida santaremensis Monteiro (1936: 44) ( Figs. 5G – H , 7A ). Type:— BRAZIL. Pará: Santarém, 1933, B.M. da Costa 49A (holotype, RBR!).

Taxonomic notes: — Sida santaremensis belongs to the section Sidae series Sida ( Krapovickas 2014) based on the following combinations of features: Stem and branches minutely stellate puberulent; stipules subulate, 1–2-nerved; leaves with a short petiole of 0.5–1.5 cm long; terminal and/or axillary flowers arranged in long-peduncled and lax corymbiform racemes, the pedicels shorter; and mericarps 10–12, blackish, short-aristate, the spines c. 1 mm long, minutely puberulent.

Distribution and habitat: —It occurs in subtropical and tropical America, from the southern United States (Florida) and Mexico to Colombia, Bolivia, Brazil, Paraguay and Argentina ( Fryxell et al. 1984, Fryxell 1985, Krapovickas 2014). In Brazil, the species is sparsely found in all regions, from Amazonas to Paraná. This species is here reported for the first time in Pernambuco, and it grows spontaneously in small populations in maize and sugarcane plantations in the north Littoral zone of the state.

Representative specimen: — BRAZIL. Pernambuco. Itapissuma, BR 101, km 22.5, 7º42’6.3468”S, 34º55’21.3132”W, 18 May 2016, G.S. Baracho 1.216 (UFP).

Figures

FIGURE 5. A: Sida jussiaeana, flower and leaves. B–C: Sida linifolia. B: flower; C: schizocarps. D: Sida rhombifolia var. rhombifolia, flower. E–F: Sida salviifolia. E: flowers and leaves; F: schizocarp with mature mericarps. G–H: Sida santaremensis. G: schizocarp with mature mericarps. H: habit. Photos: G.S. Baracho.

FIGURE 7. A–B: Distribution maps of Sida species in the State of Pernambuco, Brazil. A: Sida pernambucensis (Ì); S. planicaulis (|); S. rhombifolia var. rhombifolia (Ɨ); S. salviifolia (D); S. santaremensis (Î); S. setosa (Δ). B: Sida spinosa (z); S. tuberculata var. pseudo-rhombifolia (|); S. uchoae (Ɨ); S. ulei (D); S. ulmifolia (Î); S. urens (Δ).