Eugenia stictopetala Martius ex De Candolle (1828: 270)

Amorim, Gabriela Dos Santos, Barbosa, Maria Regina De Vasconcellos, Jr, Eduardo Bezerra De Almeida & Thomas, William Wayt, 2022, Taxonomic study of Myrtaceae in forest fragments in Amazonian Maranhão, Brazil, Phytotaxa 568 (1), pp. 27-60 : 41-43

16. Eugenia stictopetala Martius ex De Candolle (1828: 270) .

Type:— BRAZIL. Habitat in campis inter. Provinciae Minar, C. F. P. Martius s.n. (holotype: M [0171122]). ( Fig 2 N-P)

Shrubs 0.2– 8 m. Twigs glabrous. Leaves with petioles 8–10 mm long, glabrous, channeled; blades elliptic to broadly so, oblong, oval or rounded, 6.5–13.1 × 4.3–6.4 cm, glabrous, chartaceous, concolorous; glands conspicuous and dark; base cuneate or rounded; apex acute or rounded; midvein adaxially impressed; lateral veins visible, not arched, 5 to 15 pairs; intra-marginal vein 1–5 mm from the margin, margin flat. Inflorescence axillary, a fascicle, the axis ca. 1 mm long or less; bracts orbicular, 0.6 × 2.4 mm, glabrous, persistent in the fruit; pedicels 5–19 mm long, glabrous or sparsely pubescent; bracteoles elliptic or oblong, 0.7–1 × 2–5 mm, glabrous, persistent in the fruit; flower buds globose, 4–6 × 2–5 mm, not constricted above ovary; calyx-lobes free, four, orbicular or oblong, 0.5–2.5 × 1.5–3 mm, glabrous, not reflexed, persistent in the fruit; ovary 2–locular. Immature fruit globose, 0.9–1 × 0.6–0.8 cm, glabrous, surface with glands marked.

Note:— Eugenia stictopetala may be recognized by its glabrous chartaceous leaves with dark glands visible; and its orbicular or oblong calyx-lobes; and globose fruit. This species is morphologically related to E. dittocrepis but can be distinguished by its flat marginal leaf vein (vs. revolute) and concolorous leaves (vs discolorous leaves).

Distribution and habitat:— Known from Costa Rica, French Guiana, Guyana, Panamá, Peru, Suriname, TrinidadTobago, Venezuela and Brazil, where it is widely distributed (POWO 2020, Flora do Brasil 2020). In Amazonian Maranhão, E. stictopetala was found growing in secondary forests and along roads.

Phenology:— Flowering from March to July and fruiting in April.

Specimens examined:— BRAZIL. Maranhão: Funai a 40 Km da cidade de Arame, 14 March 1983 (fl.), R. Vilhena 1005 ( NY!) . Rio Maracaçumé , 01 July 1958 (fl.), R.L. Fróes 34408 ( IAN!) . Alcântara , 2°24’32” S, 44°24’53” W, 10 April 1954 (fr.), R.L. Fróes 30741 ( IAN!) . Grajaú, rodovia a 6 Km da cidade de Grajaú, 5°49’10” S, 46°08’18” W, 21 May 1983 (fr.), M.F.F. da Silva 1153 ( NY!) ; Mondelandia , 5°49’10” S, 46°08’19” W, 23 May 1983 (fl.), E.L. Taylor E1324 ( NY!) . São Luís, Granja Barreto , 2°31’47” S, 44°18’10” W, 10 May 1949 (fl.), R.L. Fróes 24292 ( IAN!) ; Reserva Florestal do Sacavém, 03 April 1992 (fr.), F.H. Muniz 50-423 (RB, image); Sítio São Raimundo , 2°31’47” S, 44°18’10” W, 08 April 1954 (fl.), R.L. Fróes 30711 ( IAN!) ; R.L. Fróes 30694 ( IAN!) .

Figures

FIGURE 2. A–B. Flower buds and flowers in Calycolpus goetheanus. C–D. Flowers in Eugenia biflora. E–F. Flower buds and immature fruits in E. caducibracteata. G. Immature fruit in E. densiracemosa. H. Immature fruits in E. flavescens. I. Immature fruits in E. patens. J. Immature fruits in E. polystachya. K. Flowers in E. protenta. L–M. Flower buds and flowers in E. punicifolia. N–P. Flower buds, flowers and immature fruits in E. stictopetala.