Ossaea marginata Triana 1871
Creators
- 1. Programa de Pós-graduação em Ciências Ambientais e Florestais; Universidade Federal Rural do Rio de Janeiro; UFRRJ, Rodovia BR- 465, Km 7, 23.890 - 000, Seropédica, Rio de Janeiro, Brazil; E-mail: kellysilva 2010 @ yahoo. com. br & Author for correspondence
- 2. Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, Rua Pacheco Leão 915, 22.460 - 030, Rio de Janeiro, Brazil; E-mail: jbaumgra @ jbrj. gov. br
- 3. Departamento de Ciências Ambientais e Florestais, Universidade Federal Rural do Rio de Janeiro; UFRRJ, Rodovia BR- 465, Km 7, 23.890 - 000, Seropédica, Rio de Janeiro, Brazil; E-mail: afnfreitas @ gmail. com
Description
6.1. Ossaea marginata (Desrousseaux 1797: 32) Triana (1871: 147). [Figs. 3p–q, 9a–c]
Shrubs 1.3–1.7 m; indumentum of the branches, petioles, inflorescences, hypanthium and calyx furfuraceous-stellulate and setose. Petioles 1.6–4.4 cm long; blade 10.6–19 × 3.2–5.9 cm, papiraceous, elliptic, base obtuse, apex acuminate, margin entire or crenulate, appressed-ciliolate; adaxial surface densely appressed-setulose in the marginal region, abaxial surface also furfuraceous-stellulate; acrodromous veins 5, the inner pair 5–15 mm suprabasal. Botryoid and metabotryoid 0.9–16 mm long, axillary, in leafy and/or aphyllous nodes; bracts 0.8–1 × 0.1–0.2 mm, bracteoles 0.8– 0.9 × 0.1–0.2 mm, both persistent, triangular, apex acuminate. Floral buds with apex acute to acuminate. Flowers 5-merous, pedicelate; hypanthium ca. 3 × 2.1–3 mm, campanulate; inner torus setulose, glabrescent; calyx persistent, bilobed, external lobes 3.5–5 × 0.5–1 mm, narrowly triangular, margin densely ciliolate, internal lobes 0.7–0.8 × 1.8–2 mm, short-triangular to ovate; petals 3–3.2 × 1–1.1 mm, white, narrowly triangular, apex acute to acuminate; stamens equal in size and shape, filaments ca. 2 mm long; anthers ca. 2 mm long, yellow, straight, pore terminal, connective not prolonged bellow the thecae, appendage dorsal, obsolete; ovary ca. 1 × 1–2 mm, 3/4- inferior, 4- celled, sparsely setulose; style ca. 6 mm long, glabrous. Baccate, bacidium type, 5.5–8 × 4.5–7 mm, purple-blackness, sparsely furfuraceous-stellulate and setose, polyspermous; seeds 0.8–1 × 0.1–0.3 mm, obtriangular.
Specimens examined:— 23.XII.2005, fl., fr., F.C. Nettesheim 162 (RBR); 12–13.X.2007, fl., fr., K.C. Silva 18 (RB, RBR); 12–13.X.2007, fr., K.C. Silva 19 (RB, RBR); 23.II.2008, fr., K.C. Silva 28 (RB, RBR); 9.I.2010, fr., K.C. Silva 62 (RBR).
Distribution:—It occurs in Brazil, Argentina and Paraguay. In Brazil, it is found in the states of Mato Grosso do Sul, Minas Gerais, Espírito Santo, Rio de Jnaeiro, São Paulo, Paraná, and Santa Catarina, in Cerrado and Atlantic Forest Biomes (Souza & Baumgratz 2012b).
Comments:—In Marambaia, this species occurs in Dense Sobmontane Ombrophuilous Forest. It can be distinguished by the axillary inflorescences at leafy and/or aphyllous nodes, the floral buds and petals with acute to acuminate apices, bilobed laciniate calyx, and the partly inferior ovary. Additional illustrations in Goldenberg et al. (2005), and Souza (2009).
Notes
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Linked records
Additional details
Identifiers
Biodiversity
- Event date
- 2005-12-23 , 2007-10-12 , 2008-02-23 , 2010-01-09
- Family
- Melastomataceae
- Genus
- Ossaea
- Kingdom
- Plantae
- Order
- Myrtales
- Phylum
- Tracheophyta
- Scientific name authorship
- Triana
- Species
- marginata
- Taxon rank
- species
- Verbatim event date
- 2005-12-23 , 2007-10-12/13 , 2008-02-23 , 2010-01-09
- Taxonomic concept label
- Ossaea marginata Triana, 1871 sec. Silva-Gonçalves, Baumgratz & Nunes-Freitas, 2014
References
- Desrousseaux, L. A. J. (1797) Melastome. In J. B. A. P. Lamarck, Encyclopedie Methodique. Botanique 4: 31 - 57.
- Triana, J. (1871) Les Melastomacees. Transactions of the Linnean Society of London, Botany 28: 1 - 188.
- Souza, M. L. D. R. & Baumgratz, J. F. A. (2012 b) Ossaea. In: Baumgratz, J. F. A., Bernardo, K. F. R., Chiavegatto, B., Goldenberg, R., Guimaraes, R., Kriebel, P. J. F., Martins, A. B., Michelangeli, F. A., Reginato, M., Romero, R., Souza, M. L. D. R. & Woodgyer, E. (Eds.) Melastomataceae: Lista de Especies da Flora do Brasil. Jardim Botanico do Rio de Janeiro. Available from: http: // floradobrasil. jbrj. gov. br / (accessed July 2012).
- Goldenberg, R., Souza, C. M. F. & Dequech, H. B. (2005) Clidemia, Ossaea e Pleiochiton (Melastomataceae) no Estado do Parana, Brasil. Hoehnea 32 (3): 453 - 466.