Eugenia breviracemosa Mazine

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation

Predicted extinction risk: threatened. Confidence: confident

Mazine, F.F. & Souza, V.C. 2009. New species of Eugenia sect. Racemosae (Myrtaceae) from Brazilian Amazon Rainforest. Kew Bulletin 64: 147. DOI: https://doi.org/10.1007/s12225-008-9094-y

Morphology General Habit

Shrub to treelet 1 – 1.5 m, branches glabrous to subglabrous

Morphology Leaves

Leaf blade elliptic-ovate, 5.3 – 7.3 cm long, 2.2 – 4 cm wide, subcoriaceous, glabrous to subglabrous on both surfaces, hairs simple, apex acute or obtuse, base rounded, midvein sulcate, glabrous to subglabrous on both surfaces, lateral veins indistinct, marginal vein 1 – 2 mm from the margin; glandular dots impressed or slightly prominent on the upper surface; petiole 4 – 6 mm long

Morphology Reproductive morphology Inflorescences

Raceme not corymbose, with 3 – 5 pairs of flowers, axillary, sessile or pedunculate, peduncle 5 – 7 mm long, rachis 1.3 – 3.2 cm long, glabrous to subglabrous; axis of the raceme shorter than the length of the leaf blade

Morphology Reproductive morphology Flowers

Flower bud 2 – 3 mm diam., floral bracts persistent, c- 1 mm long, pedicel 1 – 1.5 cm long, glabrous to subglabrous, bracteoles to 1 mm long, connate at the base, apex rounded, glabrous to subglabrous, margin ciliate, persistent, sepals 2.5 – 3 mm long, persistent, apex rounded, glabrous to subglabrous, margin ciliate; petals 4 – 5 mm long, oblong, apex obtuse or rounded; filaments c- 4 mm long, glabrous; hypanthium glabrous to subglabrous, not costate, style c- 6 mm long, subglabrous

Morphology Reproductive morphology Fruits

Fruit globose, 5 – 6 mm long, 6 – 9 mm diam, reddish, glabrous to subglabrous, surface not costate, with glands

Distribution

Known from the Rio Negro basin, Brazil.

Ecology

Occurring in dense flooded ombrophilous forest (“igapó”).

Conservation

IUCN category: Data deficient (DD).

Note

Eugenia breviracemosa is a species of glabrous or subglabrous plants, with leaf blades generally subcoriaceous, generally with a rounded base and indistinct lateral veins on the upper surface. Among other species of Eugenia found in Amazon forests, E. breviracemosa resembles E. longiracemosaKiaersk., also endemic to the Rio Negro basin and with pedunculate racemes, persistent floral bracts and a glabrous or subglabrous hypanthium. However, E. breviracemosa has racemes with the axis shorter than the leaf blade, in addition to the shorter peduncle of the inflorescence. The specific epithet refers to the short peduncle of the inflorescences of this species.