Leandra sericea de Candolle (1828: 154)
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publication ID |
https://doi.org/ 10.11646/phytotaxa.262.1.1 |
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persistent identifier |
https://treatment.plazi.org/id/03D48790-FFF0-FF9B-11C7-FF70FD44CF4B |
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treatment provided by |
Felipe |
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scientific name |
Leandra sericea de Candolle (1828: 154) |
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13. Leandra sericea de Candolle (1828: 154) . Type:— BRAZIL. Rio de Janeiro: C. F.P. von Martius s.n. (holotype M!, isotypes B, destroyed, G image!). ( Figs. 62 View FIGURE 62 , 63 View FIGURE 63 , 64 View FIGURE 64 , 65 View FIGURE 65 )
Shrubs or treelets, 1–2 m tall. Branches, petioles, leaves, inflorescences, bracts and bracteoles covered by unbranched trichomes (1–2 mm), these sparser on leaf adaxial surfaces. Leaves isophyllous or slightly anisophyllous in each pair (up to 8:14 ratio); petioles (0.5)1.5–4(5) cm long; blades (4)8–16(20) × (1.5)3–6(7) cm, usually elliptic, also ranging from lanceolate to ovate, apex acuminate, base decurrent or cuneate, seldom obtuse, margin crenulate or entire, ciliate (0.8–1.2 mm), membranaceous or chartaceous; 5–7 acrodromous nerves, plus 0–1 additional pair of faint veins, plinerved, distant (3)5–30(40) mm above the base, acrodromous nerves prominent, transversal flat on adaxial surface and acrodromous nerves flat, transversal inconspicuous on abaxial, reticulation slightly conspicuous. Inflorescences terminal, 1–3(5) per node, (5)6–10(14) cm long, 2–4 pairs of opposite paraclades, accessory branches absent or present,> 30 flowers per inflorescence, these in glomerules; bracteoles 4–7 × 1–3 mm, lanceolate, ovate or elliptic, uniformly covered by unbranched trichomes, involucral, persistent. Flowers 5–6-merous, sessile. Hypanthium 3–4 × 2–2.5 mm, tubular, torus indumentum absent. Calyx tube ca. 0.4 mm long; inner lobes 1.5–2 × ca. 1 mm, ovate to triangular; external teeth 1.2–1.5 mm long. Petals white, 3.7–4 × 1.4–1.8 mm, lanceolate, apex shortly acuminate, glabrous, spreading at anthesis. Stamens 10–12, opposite to the style; filaments geniculation absent or slightly conspicuous, the larger 4.5–5 mm long, the smaller 4–4.5 mm long; anthers pink, the larger 3.1–3.5 mm long, the smaller 2.6–3 mm long, linear-subulate, dorsally curved, pore ca. 0.12 mm wide, connectives dorsally produced below the anthers 0.1–0.7 mm, appendage absent. Ovary 4-celled, 2.2–2.8 × 1.3–1.7 mm, 30–40 % inferior, apex densely covered by unbranched trichomes (0.7–1 mm). Style 8–10 mm long, sigmoid, opposite of the stamens, stigma 0.2 mm diam. Berries purple to black, 5–8(10) × 4.5–6 mm. Seeds 0.7–1 × 0.5–0.6 mm, long-obpyramidal to obovoid, hilum covering 85/100 of the seed length, anticlinal cell walls flat.
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REGINATO
Notes:— Leandra sericea is usually readily identified by its characteristic sericeous indumentum, although some specimens are slightly hirtellous. Additionally, in many specimens the anthers of this species turn from pink in life to green when dried. This feature is also observed in some specimens of L. melastomoides . Leandra sericea might be confused with L. lapae , but the latter present glandular trichomes throughout the plant. Among the other morphologically similar species, it shares with L. ulaei the number of acrodromous nerves, being differentiated by the elliptic leaves with cuneate base, in addition to the the geographical distribution.
Selected specimens examined:— BRAZIL. Espírito Santo: Alfredo Chaves, Orlandi 580 ( CEPEC); Vargem Alta, Pereira 2260 ( RB). Minas Gerais: Alto Caparaó, Leoni 5189 ( UPCB); Carangola, Leoni 1277 ( SP); Coronel Pacheco, Heringer 813 ( RB); Descoberto, Castro 699 ( UPCB); Juiz de Fora, Silva 14954 ( MBM); Lima Duarte, Reginato 1350 ( UPCB); Muriaé, Hatschbach 48784 ( MBM); Passa Vinte, Tameirão Neto 2815 ( UPCB); Rio Preto, Assis 976 ( UPCB). Paraná: Campo Largo, Hatschbach 3211 ( MBM); Tibagi, Carmo 861 ( UPCB). Rio de Janeiro: Itatiaia, Smith 1431 ( NY); Nova Friburgo, Santos 2219 ( MBM); Resende, Mansano 6332 ( RB); Santa Maria Madalena, Mautone 493 ( RB); Valença, Amorim 10 ( RB). São Paulo: Guarulhos, Reginato 1308 ( UPCB); Nazaré Paulista, Souza 11262 ( UPCB); São José do Barreiro, Loefgren 2473 ( SP); São Paulo, Reginato 1391 ( UPCB).
TAXONOMIC REVISION OF LEANDRA SECT. LEANDRA
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