Sida acuta Burman (1768: 147)

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 : 210

2. Sida acuta Burman (1768: 147) ( Figs. 1B – C , 4A ). Lectotype (designated by Borssum-Waalkes 1966: 188):—JAVA.

Habitat in India (G, photo!).

= Sida arrudiana Monteiro (1936: 36) . Lectotype (designated here):— BRAZIL. Pernambuco: Recife , December 1933, H. Monteiro 411 (RBR!; isolectotype, US 2124966, photo!).

Taxonomic notes: — Sida acuta belongs to Sida sect. Distichifolia ( Krapovickas 2003a) , and comprises herbs with distichous branching and leaf arrangement, stipules subequal, calyx glabrous, often ciliate, staminal column pubescent, and 8–10 mericarps. During the course of herbarium examination, we encountered type specimens of S. arrudiana at RBR and US. As no holotype was indicated by the author in the protologue, and no lectotype has been designated ever since, the specimens (H. Monteiro 411 and 412) are considered syntypes and his name has to be lectotypified in accordance with Articles 9.2, 9.11, and 9.12 ( McNeill et al. 2012).

Distribution and habitat: —This species is pantropical in distribution ( Krapovickas 2003a). In Brazil, it occurs from north to south-east, growing in native and disturbed areas. In the State of Pernambuco, the species occurs from Littoral to Sertão Central, in the edge of forests or disturbed areas of the coast, on sandy soils, occurring also in dry habitats of caatinga vegetation and enclaves of brejos de altitude, above 500 m.

Representative specimen: — BRAZIL. Pernambuco. Arcoverde, BR 232, 8 August 1996, fr., G.S. Baracho 76 (UFP).

Figures

FIGURE 1. A: Sida abutilifolia, flower and leaf. B–C: Sida acuta. B: habit; C: flower and leaf. D: Sida angustissima, flower and leaf. E–F: Sida brittonii. E: flower; F: flower bud and leaves. G–H: Sida cerradoensis. G: habit; H: flower. Photos: G.S. Baracho.

FIGURE 4. A–B: Distribution maps of Sida species in the State of Pernambuco, Brazil. A: Sida abutilifolia (Î); S. acuta (z); S. angustissima (|); S. brittonii (Ɨ); S. cerradoensis (D); S. harleyi (Δ). B: Sida cordifolia (Î); S. galheirensis (z); S. glomerata (|); S. glutinosa (Ɨ); S. jussiaeana (D); S. linifolia (Δ).