Phylogeny of Miliusa (Magnoliales: Annonaceae: Malmeoideae: Miliuseae), with descriptions of two new species from Malesia Author Tanawat Chaowasku Author Paul J. A. Keßler text European Journal of Taxonomy 2013 54 1 21 journal article 32226 10.5852/ejt.2013.54 769a30e2-392e-4102-a382-f5f606a4c05a 2118-9773 883983 Miliusa butonensis Chaowasku & Kessler , sp. nov. urn:lsid:ipni.org:names:77131155-1 Figs 3–4 Diagnosis Miliusa butonensis sp. nov. belongs to clade C. It is best characterized by (1) dense hairs on the apical half inside the inner petals and (2) glandular structures that cover almost the whole basal half of the inner side of the inner petals. Fig. 2. 50% Bayesian majority-rule consensus phylogram of combined seven plastid markers, showing branch length proportional to amount of lineage sequence divergence. Scale bar unit: substitution per site. Fig. 3. Miliusa butonensis sp. nov. a. Habit. b. Outside (abaxial surface) of a persistent inner petal. c. Inside (adaxial surface) of a persistent inner petal. d. Fruit. (All from Coode 6279 ). Drawn by E. Winkel. Etymology Named after the Buton Island ( Indonesia ) where this species is endemic. Type INDONESIA : Southeast of Sulawesi , North Buton Is. , Jismil camp inland from Labuan Tobelo , Nov. 1989 , Coode 6279 [holo-: U; iso-: A, K, L], in fruit (with a few persistent inner petals). Description Trees, ca. 8 m tall, ca. 10 cm in diameter. Young twigs appressed-puberulous. Petioles 2.0–3.0 mm long, appressed-puberulous. Leaves elliptic to slightly ovate, 4.7–11.1 × 2.2–4.5 cm , base (broadly) cuneate, sometimes slightly unequal, apex acute; lamina glabrous both sides; midrib usually slightly raised to Fat above, sometimes slightly sunken, glabrous, raised below, appressed-puberulous; secondary veins 15–18 pairs, angle with midrib 42°–50°. Flowers partially known; fruiting peduncles or fruiting pedicels axillary; fruiting peduncles up to 0.4 cm long; fruiting pedicels 0.9–2.1 cm long; sepals and sometimes outer petals persistent in fruit, both ovate-triangular. Inner petals a few persistent ones fallen on herbarium sheet near the torus bearing monocarps seen, ovate-triangular, ca. 6.0 × 4.0 mm; outside appressed-puberulous, mostly on the middle part, margin puberulous, inside (curly-)velvety on the apical half; glandular structures observed on almost the whole basal half, slightly raised, between crescentshaped and semicircular, slightly Fnely warty; base not saccate. Monocarps 3–21, subglobose-ellipsoid, 0.7–0.9 × 0.6–0.8 cm ; surface smooth, glabrous; apex not apiculate; stipe ca. 6.0 mm long, glabrous. Seed(s) 1 (rarely 2), subglobose(-ellipsoid), 0.6–0.8 × 0.4–0.7 cm . Fig. 4. Distribution of Miliusa butonensis sp. nov. (Flled square) and Miliusa viridiFora sp. nov. (Flled circle). Distribution, habitat and phenology Indonesia (Buton Island, Fig. 4 ), occurring in forests on Fat ridge-tops, with slightly broken canopy due to rocky terrain of raised coralline limestone. Elevation: ca. 300 m . Fruiting: November. Field notes Branches horizontal and foliage in Fat sprays. Bark grey-brown, ca. 4 mm thick overall, ± smooth with Fne vertical cracks and rows of low lenticels, wood straw-colored, cut bark and wood pleasantly aromatic. Young leaves ± yellow-green, mature leaves mid green on both sides.