Sida glutinosa Commerson ex Cavanilles (1785: 16)

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 : 215

9. Sida glutinosa Commerson ex Cavanilles (1785: 16) ( Figs. 2F , 4B ). Lectotype:— ISLE DE FRANCE. herb. P. Commerson (P-JU 12278 A!, designated by Borssum Waalkes (1966); isolectotypes, MPU 016909!, P 00037083!; isotype, MA 267581!).

Taxonomic notes: — Sida glutinosa is in Sida subsect. Nelavagae ( Baracho & Agra 2016) and is distinguished from all other species by the stems densely viscid with glandular and setose hairs, sometimes with stellate hairs; leaf blades 2–4 × 1–3 cm, symmetric, concolor, oval-cordate; solitary flowers at the axils or in diffuse terminal panicles; calyx 4.5–5.0 mm, not accrescent, densely covered by glandular-viscid hairs and mixed with simple and stellate hairs, sepals obtrullate; corolla 1–2 cm in diameter; petals symmetric, retuse, yellow with or without red center, stamens 12–20, free filaments towards apex; and mericarps 5, apically 2–spined, spines densely covered with antrorse hairs.

Distribution and habitat: —The circumscription of S. glutinosa with respect to its closest relative, S. glabra Miller (1768 : Sida no. 14), has recently been clarified by Baracho & Agra (2016). This species occurs in tropical America, from northwest Mexico and the Caribbean to Argentina and Brazil ( Krapovickas 2006) where it is found from the Northeast to Central-West and Southeast Regions. It is considered quite rare in the State of Pernambuco. Only a single record was previously reported by Monteiro-Filho (1949) and re-collected in 1996, after a gap of 50 years, in an area of Brejo de Altitude, Mata zone of state. On the other hand, some collections of Sida from herbarium IPA (see Albuquerque 35AJ, Andrade-Lima 8989, Andrade-Lima et al. 9303, Lima et al. 734, and Pereira et al. 874) have been incorrectly assigned to S. glutinosa and this error has been propagated, but there is no doubt that all collections refers to S. ulei Ulbr. ( Baracho & Agra 2016) .

Representative specimens: — BRAZIL. Pernambuco. Caruaru, Estação Ecológica de Brejo dos Cavalos, 8º8’00”– 8º10’00” S, 36º2’00”– 36º10’00” W, 750–1000 m, 20 October 1996, fl., fr., G.S. Baracho et al. 223 (UFP).

Figures

FIGURE 2. A: Sida cordifolia, flowers and leaves. B–C: Sida galherensis. B: morphotype I, flower without dark center; C: morphotype II, flower with dark center. D–E: Sida glomerata. D: habit; E: flower. F: Sida glutinosa, habit. G–J: Sida harleyi. G: morphotype I, lilac flower with vinaceous center; H: morphotype II, salmon flowers with red center; I: morphotype III, yellow flower without dark center; J: schizocarp with glochidate mericarps. 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).