Adelobotrys marginata Brade (1958: 14)

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 : 107

4. Adelobotrys marginata Brade (1958: 14) . ( Figure 3 A, V .)

Liana. Brownand smooth rhytidome. Cylindrical branches, not winged, reddish; branches, leaves, petioles, inflorescences, hypanthium and fruits with malpighiaceous persistent trichomes. Leaves opposites isophyllous; petiole slightly channelled 1.2–1.6 cm long; leaf blades 12.9–16.8 × 6.7–8.9 cm, coriaceous, concolorous, symmetrical, elliptic, base cuneate, apex slightly acuminate, margins entire and ciliate, adaxial side glabrous, sometimes with trichomes only in the central vein, abaxial surface with malpighiaceous persistent trichomes, higher concentration in the leaf veins and margins, leaf veins 7, basal; ant domatia absent. Paniculate ca. 13.8 × 8.4 cm, terminal; bracts ca. 9.6 mm long, oblong, caducous. Flowers 5-merous; pedicel ca. 4.2 mm long; hypanthium ca. 5.8 mm long, urceolate, striate; calyx persistent; petals ca. 7.5 × 5.1 mm, pinkish, obovate, symmetrical, apex rounded, base attenuate, margins not ciliate, glabrous; stamens 10, heteromorphic, anthers ca. 3.5 mm long, lanceolate, curved, apex attenuate, 1 subapical pore, connective not prolonged, with ventral bilobed appendage; filament 4.3–6.2 mm long, glabrous; ovary ca. 3.2 mm long, superior, placentation axillary, 5-locular, glabrous; style 6.2 mm long, straight, glabrous. Capsule ca. 7.7 × 6 mm, unripe fruit; seeds numerous, triangular.

Specimens examined: — BRAZIL. Amazonas, Manaus, RDS-Tupé, 21 September 2013, fr., A.L. Corrêa 278 (EAFM!, HUAM!, INPA!).

Additional specimens examined: — BRAZIL. Amazonas , Manaus, 14 November 1966, fl., G. T. Prance et al. s/n ( INPA!) ; 26 November1966, fl., M. Falcão & Pe. José 146 ( INPA!) .

Distribution: —This species is endemic to Brazil, where it occurs in Amazonian forests (Lima et al. 2015). In the reserve, it occurs in “terra firme”, along streams.

Comments: —This s pecies is rare in the reserve. It can be recognized by the malpighiaceous trichomes that are widely distributed through the plant.

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).