Sida setosa Martius ex Colla 1833

18. Sida setosa Martius ex Colla (1833: 416) (Fig. 7A). Type:— BRAZIL. Rio Belmonte [Jequitinhonha], 1827, Martius s.n. (holotype, TO, photo!).

Taxonomic notes: — Sida setosa is placed in the section Sidae series Sida (Krapovickas 2014) and is distinguished from all other species by the leaf blades broadly lanceolate to rhombic, up to 10 cm long or more; flowers in depauperate umbellate clusters or solitary in the axils, long-pedicellate; calyx indurate in fruiting, 10-ribbed; corolla yellow; and mericarps 14, 2.5–3 × 1–2 mm, biaristate, the spines 5–6 mm long twice the length of the mericarp’s body, more or less curled and with retrorse stellate trichomes.

Distribution and habitat: — Sida setosa is an American species that extends from Nicaragua to Peru and Brazil (Fryxell 1985, Krapovickas 2014), where it is found at the north, central-west and northeast regions. A new record of this species for Pernambuco is presented here based on a single specimen collected by D.A. Lima in 1966 from Mata zone, southern portion of state. This species was found in disturbed fragments of rainforest where it probably grows in small populations associated with riparian vegetation and river beds. Despite our repeated efforts, S. setosa was not found again in the area.

Representative specimen: — BRAZIL. Pernambuco. Quipapá, Igarapeba, Engenho Brejinho, 19 March 1966, fr., Andrade-Lima 4496 (IPA).