Published October 17, 2014 | Version v1
Taxonomic treatment Open

Leandra variabilis Raddi 1829

  • 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

3.4. Leandra variabilis Raddi (1829: 42). [Figs. 5d–h]

Shrubs or treelets 2–4 m, sharply pilose; indumentum of the branches, petioles, veins in abaxial surface of the leaves, inflorescences and hypanthium rufous, moderately to densely with dendritic trichomes, sessile or short-pedicelate, and rough-setulose trichomes, persistent. Petioles 2.8–3.3 cm long; blade 16.5–30.5 × 8.3–12.4 cm, papiraceous or chartaceous, elliptic, base obtuse, apex acuminate, margin crenulate-ciliolate; adaxial surface estrigulose-setulose, abaxial surface also with setulose trichomes; domatia absent; acrodromous veins 5, 6– 10 mm suprabasal. Thyrsoids of glomerules, 9.5–14.6 cm long; bracts 3.2–3.3 × 0.8–1.1 mm, bracteoles 1.8–2 × 0.5–0.6 mm, both triangular-acuminate, not involucral. Flowers 5-merous; pedicelate; hypanthium 2.2–2.5 × 2–2.4 mm, campanulate; inner torus setulose; calyx with external lobes 0.8–1.5 × 0.8–1 mm, internal lobes obsolete; petals 2.9–3.2 × 0.5–0.6 mm, white, reflex, narrowly triangular; stamens with filaments 1.6–1.7 mm long; anthers ca. 1.9 mm long, white, straight, connective not prolonged, unappendaged; ovary 1.2–1.8 × 1.5–1.9 mm, 1/2-inferior, 3-celled, sparse-setulose; style 5.9–6 mm long. Bacidium 3.2–6 × 4–5 mm, purple, subglobose, sparse-setulose and -dendritic; seeds 0.3–0.4 × 0.2–0.3 mm, obtriangular, testa granulose.

Specimens examined:— 7.IV.2007, fr., K.C. Silva 13 (RB, RBR); 29.VII.2008, fr., K.C. Silva 48 (RB, RBR); 3.IV.2010, ster., K.C. Silva 87 (RBR).

Additional specimen examined:— BRASIL. Rio de Janeiro: Miguel Pereira, 13.XI.2001, fl., S.J. Silva Neto et al. 1506 (RB).

Distribution:—Endemic to the Atlantic Forest Biome of Brazil, occurring in the states of Espírito Santo, Rio de Janeiro, São Paulo, Paraná, Santa Catarina, and Rio Grande do Sul (Souza & Baumgratz 2012a).

Comments:—In Marambaia, it is found from sea level up to 641 m in Dense Submontane Ombrophilous Forest. The indumentum of the branches and petioles are rufous, densely covered by dendritic and rough-setulose trichomes. Leandra variabilis is morphologically closer to L. carassana (Candolle 1828: 162) Cogniaux (1886: 120), a sympatric species which is distinguished by bracts and calyx tube and lobes that are longer (Camargo et al. 2009, Souza & Baumgratz 2009). Additional illustrations in Raddi (1829) and Souza & Baumgratz (2009).

Notes

Published as part of Silva-Gonçalves, Kelly Cristina Da, Baumgratz, José Fernando A. & Nunes-Freitas, André Felippe, 2014, Melastomataceae in a continental Atlantic Forest island from southeastern Brazil, pp. 61-92 in Phytotaxa 183 (2) on page 72, DOI: 10.11646/phytotaxa.183.2.1, http://zenodo.org/record/5149548

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References

  • Raddi, G. (1829) Melastome Brasiliane. Memoria di Matematica e di Fisica della Societa Italiana del Scienze Residente in Modena, Parte contenente le Memorie di Fisica 20 (3): 111 - 172.
  • Souza, M. L. D. R. & Baumgratz, J. F. A. (2012 a) Leandra. In: Baumgratz, J. F. A. (Eds.) Bernardo, K. F. R., Chiavegatto, B., Goldenberg, R., Guimaraes, P. J. F., Kriebel, R., 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).
  • Candolle, A. P. (1828) Melastomaceae. In: Prodromus systematis naturalis regni vegetabilis, vol. 3. Paris, Treuttel et Wurtz, pp. 99 - 202.
  • Camargo, E. A., Souza, C. M. F, Caddah, M. K. & Goldenberg, R. (2009) O genero Leandra, secoes Carassanae, Chaetodon, Niangae, Oxymeris e Secundiflorae (Melastomataceae) no estado do Parana. Rodriguesia 60: 595 - 631.
  • Souza, M. L. D. R. & Baumgratz, J. F. A. (2009) Leandra. In: Wanderley, M. G. L., Shepherd, G. J., Melhem, T. S., Giulietti, A. M. & Martins, S. E. (Eds.) Flora Fanerogamica do Estado de Sao Paulo, vol. 6. Instituto de Botanica, FAPESP, Sao Paulo, pp. 32 - 68.