Miconia poeppigii Triana (1871: 107)

Corrêa, André Luis, Scudeller, Veridiana Vizoni & Goldenberg, Renato, 2017, Melastomataceae in the Reserva de Desenvolvimento Sustentável do Tupé, Amazonas, Brazil, Phytotaxa 323 (2), pp. 101-127 : 120

30. Miconia poeppigii Triana (1871: 107) . ( Figure 3 H, U .)

Trees ca. 12 m tall. Light gray rhytidome. Branches erect, quadrangular, not winged, brown; branches, petioles, leaves abaxial surface, inflorescences, bracts, bracteoles, hypanthium and fruits with stellate-sessile caducous trichomes. Leaves opposite, isophyllous; petioles slightly channelled 08.– 1.3 mm long; leaf blades 12.8–13.6 × 4.2–4.8 cm, chartaceous, concolorous, asymmetrical, oblong-elliptic, base attenuate, apex acute, margins entire, not ciliate, adaxial side glabrous, leaf veins 5, suprabasal; ant domatia absent. paniculate ca. 17.1 × 10.3 cm, terminal; bracts elliptical, caducous. Flowers 5-merous; pedicel ca. 0.3 mm long; hypanthium 1.4 mm long, campanulate, wrinkled; calyx double, persistent; petals ca. 2.1 × 1.2 mm, white, oblong, symmetrical, apex rounded, base truncate, margins not ciliate, glabrous; stamens 10, heteromorphic, anthers 1.8–2 mm long, white, oblong, straight, apex attenuate,1 apical pore, connective not prolonged, filament 1.5–2.2 mm long, glabrous; ovary ca. 1.3 mm long, half-inferior, placentation axillary, 3-locular, glabrous; style ca. 3.9 mm long, straight, glabrous. Berry ca. 3.4 × 3.1 mm, unripe fruit green, ripe fruit blackish; seeds numerous, triangular.

Specimen examined:— BRAZIL. Amazonas, Manaus, RDS-Tupé, 21 September 2013, fr., A.L. Corrêa 280 (EAFM!, HUAM!, INPA!).

Additional specimen examined:— Amazonas, Manaus. 24 July 1984, fl., S. Renner 978 (INPA!).

Distribution and habitat:— Belize, Guatemala, Honduras, Nicaragua, Costa Rica, Panama, Colombia, Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru, Bolivia ( Goldenberg et al. 2013). In Brazil it occurs in Amazonian forests ( Goldenberg & Caddah 2015). In the reserve, it occurs on terra-firme slopes on clay soil with low organic matter.

Comments:— This species is rare in the reserve. It can be recognized by the light gray rhytidome, and shiny, concolorous leaves with suprabasal venation and stellate-sessile trichomes.

Figures

FIGURE 3. Morphological details of Melastomataceae species in RDS-Tupé: A. Adelobotrys marginata, leaf blade (from Corrêa 278); B. Miconia comptifolia, leaf blade with detail of the margins (from Corrêa 219); C. Tococa subciliata, leaf blade with detail of the margins (from Corrêa 112); D. Clidemia epibaterium, leaf blade with of the detail margins (from Corrêa 215); E. C. heteroneura, leaf base (from Corrêa 140); F. C. japurensis, leaf base (from Corrêa 21); G. Henriettea maroniensis, leaf blade and detail of trichomes on the abaxial surface (from Corrêa 139); H. M. poeppigii, leaf blade and detail of trichomes on the abaxial surface (from Corrêa 280); I. M. umbrosa, leaf base and detail of trichomes on the abaxial surface (from Corrêa 81); J. Tibouchina fothergillae, longitudinal section of the ovary, hypathium and calix (from Corrêa 218); K. M. umbrosa, detail of the ovary and style (from Corrêa 81); L. M. gratissima, transverse section of the ovary (from Corrêa 137); M. Aciotis circaeifolia, petal (from Corrêa,21);N. C. epibaterium, petal (from Ribeiro 932); O. Miconia tomentosa, stamen larger (from Corrêa 47); P. Aciotis acuminifolia, fruit (From Corrêa 102); Q. M. rubiginosa, fruit (from Scudeller 1067); R. Miconia phanerostila, seed (from Herb 96); S. M. lourteigiana, arachnoid trichome (from Corrêa 77I); T. M. crassinervia, dendritic trichome (from Corrêa 248) U. M. poeppigii, stellate trichome (from Corrêa 280); V. Adelobotrys marginata, malpighiaceous tricome (from Corrêa 278).