Huberia ovalifolia Candolle (1828: 167)

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 : 69

2.1. Huberia ovalifolia Candolle (1828: 167) . [ Figs. 3c–d , 4k–o ]

Trees or treelets 3–15 m, apparently glabrous; indumentum of the branches, leaves, inflorescences, pedicel, hypanthium and calyx glandular-punctate. Petioles 1.2–3.5 cm long; blade 5.7–18 × 2.5–8 cm, chartaceous, ovate or elliptic, base obtuse to acute, apex obtuse to acute, margin entire; acrodromous basal veins 3. Inflorescences 5.4–15.2 cm, terminal; bracts 1.5–2.4 × 5–9 mm, bracteoles 0.5–1 × 0.1–0.5 mm, both persistent, linear-triangular. Flowers 4-merous; pedicel 1.1–2 cm long; hypanthium 3–10 × 2.2–2.9 mm, tubulose; calyx persistent, lacinias unilobed, 1.8–2.7 × 1.6–3 mm, broadly ovate, apex rounded; petals 11–26 × 6–17 mm, white, yellow at the base, apex rounded-acuminate, glabrous; stamens isomorphic, subequal in size, yellow, becoming reddish at maturity; filaments 5–9 mm long; anthers 11–12 mm long, pore terminal, connective not prolonged nor thickened bellow the thecae, dorsal appendage 4.2–9 mm long, linear; ovary 4.7–6.5 × 1.9–4 mm, 2/3-superior free inside the hypanthium, 1/3-inferior adnate at the base, 4-celled, glabrous; style 1.6–2.6 cm long, glabrous. Capsule 12–14 × 6–9 mm, ruptidium type, urceolate, ovate, polyspermous; seeds 2.5–5 × 0.5–0.9 mm, winged, linear to oblong, dorso-ventrally flattened.

Specimens examined:— 17.XII.1997, fl., R. Facre s.n. (RBR 10271) ; 15.XII.1998, ster., L.F.T. Menezes & M.C. Souza 577 (RB, RBR) ; 15.IV.2000, fl., M. Conde 470 (RB, RBR) ; 3.VI.2000, ster., L.F.T. Menezes 665 (RBR) ; 20.I.2001, fl., M.C. Souza 180 (RBR) ; 25.II.2001, fl., L.F.T. Menezes 826 (RBR) ; 10.VI.2006, fl., A.C.C. Moreira 20 (RBR) ; 7.IV.2007, fl., fr., K.C. Silva 15 (RBR) ; 4.III.2008, fl., fr., K.C. Silva 32 (RB, RBR) ; 27.IX.2009, ster., K.C. Silva 60 (RBR) ; 21.IV.2010, fl., K.C. Silva 92 (RBR) .

Distribution:—Endemic to Brazil and Atlantic Forest Biome, occurring from the state of Bahia to São Paulo ( Chiavegatto & Baumgratz 2012). It is categorized as Vulnerable to the municipality of Rio de Janeiro ( Baumgratz 2000).

Comments:— In Marambaia Island , H. ovalifolia occurs in Restinga Forest and Dense Submontane Ombrophilous Forest. It can also be distinguished by the long floral pedicel (1.1–2 cm); flowers with yellow stamens, thecae become reddish to vinaceous after fertilization, connective with a linear dorsal appendage, and capsules of the ruptidium type. Additional illustrations in Baumgratz (1997, 2009) .

Figures

FIGURE 3. Clidemia hirta (L.) D.Don: a. flower and fruit. Clidemia urceolata: b. flower. Huberia ovalifolia: c. flower; d. fruits. Leandra reversa: e. inflorescence. Marcetia taxifolia: f. flowers. Miconia albicans: g. fruits and floral buds. Miconia calvescens: h. flowers. Miconia chartacea: i. leaves. Miconia cinnamomifolia: j. branches with interpetiolar pseudo-stipules; k. fruits. Miconia cubatanensis: l. inflorescence. Miconia dodecandra: m. fruits. Miconia prasina: n. inflorescence. Miconia pusilliflora: o. inflorescence. Ossaea marginata: p. flowers; q. fruit. Tibouchina corymbosa: r. fruits. Tibouchina estrellensis: s. flower. Tibouchina gaudichaudiana: t. flower; u. fruit. Tibouchina granulosa: v. flower. Tibouchina heteromalla: x. flower. Tibouchina trichopoda: z. flower.

FIGURE 4. Clidemia hirta: a. flowering branch; b. floral bud; c. calyx lobes; d. petal (Silva 42). Clidemia urceolata: e. flowering branch; f. detail of branch indumentum; g. floral bud; h. petal; i. fruit; j. seed (Silva 50). Huberia ovalifolia: k. leaf: abaxial surface; l. flower; m. calyx; n. disruptive capsule, showing the disruption of hypanthium; o. seed (k. Menezes 826; l–m. Silva 92; n. Silva 32; o. Menezes 826). Marcetia taxifolia: p. floriferous branch; q. antipetalous stamen; r antisepalous stamen; s. fruit: loculicidal capsule; t. seed (Menezes 252).