Leandra santos-limae Brade (1945: 4)

Reginato, Marcelo, 2016, Taxonomic revision of Leandra sect. Leandra (Melastomataceae, Miconieae), Phytotaxa 262 (1), pp. 448-450 : 448-450

publication ID

https://doi.org/ 10.11646/phytotaxa.262.1.1

persistent identifier

https://treatment.plazi.org/id/03D48790-FFF4-FF97-11C7-FEABFA14CF4F

treatment provided by

Felipe

scientific name

Leandra santos-limae Brade (1945: 4)
status

 

12. Leandra santos-limae Brade (1945: 4) . Type:— BRAZIL. Rio de Janeiro: Santa Maria Madalena , 7 March 1934, J.S. Lima & A.C. Brade 13213 (holotype RB!). ( Figs. 58 View FIGURE 58 , 59 View FIGURE 59 , 60 View FIGURE 60 , 61 View FIGURE 61 )

Leandra sylvestris var. major Cogn. in Martius et al. (1886: 91). Type:— BRAZIL. Rio de Janeiro: J.B.E. Pohl 3968 (holotype BR image!).

Shrubs or treelets, 1.5–3 m tall. Branches, petioles, leaves, inflorescences, bracts and bracteoles covered by appressed, unbranched trichomes (ca. 0.5 mm), very sparse on the leaf surfaces, denser on the acrodromous veins on the abaxial surface, inflorescences and hypanthia, glandular trichomes (ca. 0.5 mm) mixed on the inflorescences and hypanthia. Leaves isophyllous or slightly anisophyllous in each pair (up to 1:2 ratio); petioles 0.7–2.5 cm long; blades 6–15 × (2.5) 3.5–6 cm, elliptic, seldom ovate to elliptic, apex shortly acuminate, base acute to slightly cuneate, seldom obtuse to slightly rounded, margin crenulate or entire, ciliate (0.5 mm), subchartaceous; 5 acrodromous nerves, plus 0–1 additional pair of faint veins, plinerved, distant (5) 10–25 mm above the base, acrodromous nerves slightly prominent and transversal slightly conspicuous on adaxial surface and acrodromous nerves prominent, transversal prominent or flat on abaxial, reticulation slightly conspicuous. Inflorescences terminal, seldom pseudolateral, 1–3 per node, 5–12 cm long, 2–4 pairs of opposite paraclades, accessory branches absent,> 30 flowers per inflorescence, these in glomerules; bracteoles 2–3 × 1.5–2.5 mm, elliptic or ovate, uniformly covered by unbranched trichomes, partially involucral, early caducous. Flowers 5-merous, sessile. Hypanthium 3–4 × 2–2.5 mm, tubular, torus indumentum absent. Calyx tube 0.4 mm long; inner lobes 1–1.5 × 0.85 mm, oblong with a rounded apex; external teeth ca. 1 mm long. Petals white, 5 × 1–1.5 mm, linear to lanceolate,

68 • Phytotaxa 262 (1) © 2016 Magnolia Press

REGINATO apex acute, glabrous, spreading at anthesis. Stamens 10, opposite to the style; filaments geniculation absent or slightly conspicuous, the larger 4.5–5.5 mm long, the smaller 3–3.5 mm long; anthers white, the larger 3–3.5 mm long, the smaller 2.7–3.5 mm long, linear-subulate, dorsally curved, pore 0.10–0.15 mm wide, connectives dorsally produced below the anthers 0.5–0.7 mm, appendage present, a basal-dorsal bifurcation in the connective. Ovary 3- celled, 3 × 1.5 mm, 40 % inferior, apex covered by unbranched trichomes (0.4 mm). Style 11 mm long, sigmoid, opposite of the stamens, stigma 0.25 mm diam. Berries unknown color, 6 × 4 mm. Seeds 0.6–0.8 × 0.4 mm, long-obpyramidal, hilum covering 95/100 of the seed length, anticlinal cell walls flat.

Notes:— Leandra santos-limae is morphologically similar to L. hirta (sympatric in many localities), from which is differentiated by the wider elliptic leaves and by the shorter ovate or elliptic bracteoles. In most cases it also presents one more pair of acrodromous nerves than L. hirta .

Specimens examined:— BRAZIL. Espírito Santo: Alegre, Kollmann 10367 (MBML); Cachoeiro de Itapemirim, Souza 45 (UPCB); Conceição do Castelo, Arbo 7740 (CEPEC, NY); Santa Teresa, Sucre 4550 (NY, RB); Venda Nova do Imigrante, Martinelli 1485 (NY, RB). Minas Gerais: Juiz de Fora, Schwacke 14802 (RB). Rio de Janeiro: Itatiaia, Brade 17442 (NY, RB), Brade 18842 (M, NY, RB), Reginato 1446 (UPCB); Miguel Pereira, Baumgratz 995 (RB, SPF); Santa Maria Madalena, Lima 13213 (RB). São Paulo: Guarulhos, Aguiar 823 (UPCB), Reginato 1315 (NY); Itararé, Barros 3018 (SP).

TAXONOMIC REVISION OF LEANDRA SECT. LEANDRA

Phytotaxa 262 (1) © 2016 Magnolia Press • 69 70 • Phytotaxa 262 (1) © 2016 Magnolia Press

REGINATO TAXONOMIC REVISION OF LEANDRA SECT. LEANDRA

Phytotaxa 262 (1) © 2016 Magnolia Press • 71

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