Miconia egensis Cogniaux (1887: 374)
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publication ID |
https://doi.org/ 10.11646/phytotaxa.323.2.1 |
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DOI |
https://doi.org/10.5281/zenodo.13696842 |
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persistent identifier |
https://treatment.plazi.org/id/03FC87A2-FFB0-FFF8-74C4-FC5DFADCF906 |
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treatment provided by |
Felipe |
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scientific name |
Miconia egensis Cogniaux (1887: 374) |
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23. Miconia egensis Cogniaux (1887: 374) View in CoL . ( Figure 2 N View FIGURE 2 .)
Trees ca. 8 m tall. Dark brown rhytidome with deep grooves. Branches erect, quadrangular not winged, rufous; branches, petioles, leaves abaxial surface, inflorescence, bracts, bracteoles with dendritic caducous trichomes. Leaves opposite, isophyllous; petioles slightly channelled 0.9–1.4 cm long; leaf blades 15.6–19.8 × 8.1–9.6 cm, chartaceous, discolored, symmetrical, oblong-elliptic or obovate, base cuneate, apex acuminate, margins repand, not ciliate, adaxial side glabrous, leaf veins 5, basal; ant domatia absent. Paniculate 9.6–13 × 12.6–16.4 cm, terminal; bracts not seen; bracteoles ca. 1.2 mm long. Flowers 5-merous; pedicel 0.7–1.1 mm long; hypanthium ca. 0.9 mm long, campanulate smooth; calyx simple, persistent; petals ca. 2.2 × 0.8 mm, white, oblong, asymmetrical, apex rounded, base truncate, margins ciliate, glabrous; stamens 10, heteromorphic, smaller anthers ca. 2.1 mm, larger anthers ca. 2.6 mm long, white, oblong, straight, apex truncate, 1 subapical pore, connective not prolonged, smaller filaments ca. 2.5 mm long, larger filaments ca. 3.1 mm long, glabrous; ovary ca. 0.8 mm long, half-inferior, placentation axillary, 3-locular, glabrous; style ca. 4.3 mm long, straight, glabrous. Berry 2.8–3 × 3.3–3.5 mm, unripe fruit green, ripe fruit purple; seeds numerous, triangular.
Specimen examined:— BRAZIL. Amazonas, Manaus, RDS-Tupé, 05 December 2012, fr., A.L. Corrêa 107 (EAFM!, HUAM!, INPA!).
Additional specimen examined:— BRAZIL. Amazonas, Manaus, 7 August 2007, fl., J.E.C. Souza B18 (INPA!).
Distribution and habitat:— Venezuela, Guyana, Suriname, French Guiana, Ecuador, Peru ( Goldenberg et al. 2013). In Brazil it occurs in Amazonian forests ( Goldenberg & Caddah 2015). In the reserve, it occurs in “terra firme” plateaus, on well drained clay soil, with a lot of organic matter.
Comments:— This species is not frequent in the reserve. It can be recognized by the dark brown rhytidome with deep grooves, quadrangular branches and leaves with cuneate bases and abaxial surface with dendritic trichomes.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.