Breynia phongquangensis (Phyllanthaceae), a new species from Vietnam

Collection: Pensoft Publishers

Keywords: Glochidion · Topics: Plant Diversity and Evolution, Plant and Fungal Species Descriptions, Plant and animal studies

The new species Breynia phongquangensis from Vietnam is described and illustrated. The new species is compared with three similar species in an identification key and a table of detailed morphological characters. Breynia phongquangensis differs from the morphologically similar species B. macrantha, B. phuongiana, and B. spatulifolia by a unique combination of characters, including fleshy sepals in the staminate flowers (vs. non-fleshy in the other three species); staminate flowers 4.9–5.8 mm in diameter (vs. ca. 3.3 mm in B. spatulifolia); outer sepals of pistillate flowers 3.7–4.6 mm long (vs. 6–7 mm long in B. macrantha); and a markedly longer ovary, 3.7–4.9 mm long (vs. < 2.8 mm long in the other three species). It further differs in having fruits ca. 27.0 mm long (vs. ≤ 25.0 mm long in the other species), pistillate flower pedicels 16–53 mm long (vs. 2.5–4.0 mm long in B. phuongiana and 0.3–3.0 mm long in B. spatulifolia), globose fruits (vs. starfish-shaped in B. phuongiana), and fewer lateral veins (6–8 pairs vs. 9–15 pairs in B. spatulifolia).

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