Marcetia taxifolia ( Saint-Hilaire 1823: 150 ) Candolle (1828: 124)

Silva-Gonçalves, Kelly Cristina Da, Baumgratz, José Fernando A. & Nunes-Freitas, André Felippe, 2014, Melastomataceae in a continental Atlantic Forest island from southeastern Brazil, Phytotaxa 183 (2), pp. 61-92 : 72-73

publication ID

https://doi.org/ 10.11646/phytotaxa.183.2.1

DOI

https://doi.org/10.5281/zenodo.5149365

persistent identifier

https://treatment.plazi.org/id/8A04314C-FF9A-FFA6-FF50-FA66FBDDFF4C

treatment provided by

Felipe

scientific name

Marcetia taxifolia ( Saint-Hilaire 1823: 150 ) Candolle (1828: 124)
status

 

4.1. Marcetia taxifolia ( Saint-Hilaire 1823: 150) Candolle (1828: 124) . [ Figs. 3f View FIGURE 3 , 4p–t View FIGURE 4 ]

Subshrubs or shrubs 0.3–1.5 m; indumentum of the branches, leaves, inflorescences, hypanthium and calyx densely glandular-hirtellous. Leaves sessile or petioles 0.5–0.8 mm long; blade 4–5.3 × 0.8–1.2 mm, chartaceous, narrowly elliptic, base cordate-lobate, apex acuminate, margin entire, ciliolate; acrodromous basal veins 3. Flowers 4-merous, solitaries, axillaries, pedicelate; bracteoles 1.6–1.9 × 0.1–0.2 mm, linear, caducous; hypanthium ca. 3 × 2.5–3 mm, campanulate; calyx with lobes 2–3.2 × 1–1.8 mm, narrowly triangular, margin ciliolate, persistent; petals 6.7–8 × 3.1–3.3 mm, rose, elliptic, apex acuminate, glabrous; stamens isomorphic and of two sizes, anthers yellow, slightly falciform, pore terminal, connective not prolonged, appendage thickened and involving the base of the thecae, with or not ventral projections, antesepalous with filaments 7.6–7.8 mm long, anthers 4–4.2 mm long, antepetalous with filaments 6–6.3 mm long, anthers 3.3–3.8 mm long; ovary 2.1–2.3 × ca. 1.5 mm, free inside the hypanthium, 4-celled, glabrous; style 1–1.4 cm long, glabrous. Capsule loculicidal 3.5–4 × 3–3.5 mm, polyspermous; seeds ca. 0.5 × 0.5 mm, cochlear or subcochlear, testa foveolate.

Specimens examined:— 5.VIII.1998, fl., fr., L.F.T. Menezes s.n. ( RBR 10269 View Materials ) ; 29.V.1999, fl., fr., L.F.T. Menezes et al. 252 (RBR) ; 11.VI.2004, fl., L.F.T. Menezes et al. s.n. (RBR 7297) ; 5.IV.2008, fr., K.C. Silva 34 (RBR) .

Distribution:—A widely distributed species in South America, occurring in abundance in Venezuela but less frequent in Guyana and Colombia ( Martins 1989, 2009). In Brazil, it is found in the states of Roraima, Ceará, Paraíba, Pernambuco, Alagoas, Sergipe, Bahia, Minas Gerais, Espírito Santo, Rio de Janeiro, São Paulo, and Paraná, and in the Distrito Federal ( Martins & Bernardo 2012).

Comments:—In Marambaia, the species occurs in Herbaceous and Shrubby Restinga. It can also be distinguished by the small leaf size (4–5.3 × 0.8–1.2 mm), rose petals, yellow anthers, and the cochlear or subcochlear seeds, with foveolate testa. Additional illustrations in Chiavegatto (2005) and Martins (2009).