Sida castanocarpa Krapovickas (2007: 226)

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 : 224

1. Sida castanocarpa Krapovickas (2007: 226) . Type :— BRAZIL. Goiás, BR-226, km 1192, 40 km NE Vanderlandia, 10 March 1982, A. Krapovickas, J.F.M. Valls & G.P. Silva 37845 (holotype, CEN; isotype, NY, photo!, SP, photo!).

Taxonomic notes: — Sida castanocarpa is placed into Sida sect. Malacroideae ( Krapovickas 2007) as a member of the Sida ciliaris complex, and occurs in Northeastern Brazil and Goiás. The type material of this cryptic species was not available for examination, excepting online images. On the other hand, one of the paratypes of S. castanocarpa , from IPA (Krapovickas et al., 38749!), is ambiguous and similar to S. brittonii León (1919: 172). The original description of this species is conflicting with the morphological variation presented in this study of S. brittonii and S. harleyi Krapovickas (2007: 239) , and has led to mis-identifications. Given the considerable taxonomic confusion and the need to verify which morphological characters are taxonomically significant by observing the type specimens of S. castanocarpa , this species is excluded from the present study.