Neo-Uvaria undetermined, Airy Shaw

Chaowasku, Tanawat, KEssLER, Paul J. A., Punnadee, Suwit & Van Der Ham, Raymond W. J. M., 2011, Taxonomic novelties and pollen morphological study in the genus Neo-uvaria (Annonaceae), Phytotaxa 32, pp. 27-42 : 29

Key to Neo-uvaria species in Thailand

1. Lower leaf surface sparsely covered with stellate indumentum. Flowers pedicellate, pedicels (in flower and in fruit) (3–)5–6(–8) mm long, sepals ca. 2.1 × 2.5 mm, outer petals 5.2 × 2.8–3.0 mm, inner petals 4.0–5.0 × 2.5 mm, stamens 12–15 per flower. Monocarps 3.1–3.3 × 2–2.5 cm ..................................................................... N. sparsistellata

- Lower leaf surface densely covered with stellate indumentum. Flowers (almost) sessile, sepals ca. 7.5 × 6.5 mm, outer petals 11.5–13.5 × 6.5–8.0 mm, inner petals 8.5–10.0 × 7.5–8.5 mm, stamens 16–20(–22) per flower. Monocarps 6.5–7.0 × 5.2–5.5 cm ........................................................................................................................... N. telopea