Volume 16 > Part 1 > Year 2022 > Page 268 > Annonaceae > Pseuduvaria

5. Pseuduvaria macrophylla (Oliv.) Merr.wfo-0001066254

Philipp. J. Sci., C 10: 255. 1915; J.Sinclair, Gard. Bull. Singapore 14: 408. 1955; Y.C.F.Su & R.M.K.Saunders, Syst. Bot. Monogr. 79: 111. 2006; S.Gardner et al., Forest Trees S. Thailand 1: 167. 2015.— Mitrephora macrophylla Oliv., Hooker’s Icon. Pl., ser. 3, 16: t. 1562. 1887; King, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 61: 87. 1892, Ann. Roy. Bot. Gard., Calcutta 4: 114. 1893; Ridl., Fl. Malay Penins. 1: 74. 1922; Craib, Fl. Siam. 1: 52. 1925. Plate XXXIII: C–D.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Tree to 14 m tall. Young branches densely hairy. Leaves papyraceous to coriaceous, obovate to elliptic, 12–29.5 by 4–11 cm, base cuneate (or acute) to obtuse (or truncate), apex acute (or obtuse) to acuminate, glabrous on both surfaces, margins not ciliate, secondary veins 12–22 pairs; petioles 2–12 mm long, densely hairy. Inflorescences on branches, 1(–3)-flowered, peduncles inconspicuous, pedicels 3–18 mm long, very densely hairy. Flowers staminate or hermaphroditic on same or different plants. Sepals triangular, 1–2.5 by 1–2.5 mm. Outer petals dark red or purplish pink, ovate to elliptic, 1.5–4 by 2–3.5 mm. Inner petals dark red or purple, clawed-cordate to triangular, 4–11 by 2–7 mm, 1–1.5 mm thick, base of blade cordate to ± truncate, glabrous except margin adaxially, claw 2–5 mm long; gland ellipsoid, greatly raised. Staminate flowers with 55–65(–90) stamens. Hermaphroditic flowers with 3–9 stamens, 11–17 carpels; carpels 1.2–2.1 mm long; ovules 2–5. Fruit of 3–15 monocarps, peduncle inconspicuous, pedicel 10–30 mm long. Monocarps dark brown, globose, 0.7–1.7 by 0.5–1.5 cm, smooth, densely hairy, apiculum 0.1–0.5 mm long, stipe 2–9(–14) mm long. Seeds 4–5, 8–9 by 5–7.5 mm.

Thailand : PENINSULAR: Songkhla, Yala, Narathiwat.

Distribution : Peninsular Malaysia (type), Sumatra.

Ecology : Dipterocarp forests, 50–1,500 m alt. Flowering and fruiting: March–November.

Vernacular : Sang yu dok daeng (สังหยูดอกแดง).

Notes: Pseuduvaria macrophylla is delimited in a narrow sense here, following the exclusion of vars. cymosa and sessilicarpa, described by Sinclair (Gard. Bull. Singapore 14: 149–516, 1955).