Neo-Uvaria viridifolia, 2011

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 : 35

Neo-uvaria viridifolia (Elmer) Chaowasku , comb. nov.

Basionym:— Mitrephora viridifolia Elmer (1913: 1716) .

TYPE:—THE PHILIPPINES. Mindanao , Agusan Province : Cabadbaran (Mt. Urdaneta), October 1912, Elmer 14184 (PNH (destroyed), lectotype (here designated) NY!, isotypes BM!, BP, DS, E!, G!, GH, L!, NA, P!, U!), in flower .

Observations: — N. viridifolia is considerably different from N. acuminatissima , especially in the much sparser stellate indumentum on the lower leaf surface. Moreover, its pedicels are longer than those of N. acuminatissima [(4–) 5–6 mm long in N. viridifolia vs. nearly absent in N. acuminatissima ]. The leaf base of N. viridifolia is usually (broadly) wedge-shaped in contrast to N. acuminatissima which usually has obtuse to rounded leaf base. N. acuminatissima was very rarely collected concerning the flowers. Of all specimens investigated, only the collection Sinclair et al. 9250 [this collection seems to have generally smaller leaves with more obtuse base and wider distance of the adjacent tertiary veins compared to those of Elmer 21112 and the type of N. acuminatissima , however, all other morphology of the three collections is similar] has flowers which are smaller than those of N. viridifolia [outer petals ca. 3.6 × 2.5 mm, inner petals ca. 3.8 × 3.0 mm in N. acuminatissima vs. outer petals (7.0–)10.2 × (3.6–) 4.1 mm, inner petals (6.7–)9.5 × 3.4–3.7 mm in N. viridifolia ].