Volume 2 > Part 2 > Year 1972 > Page 137 > Apostasiaceae > Apostasia

3. Apostasia nuda R.Br.wfo-0000249986

Wallich, Pl. As. Rar, 1: 76. 1830; RidL, Fl. Mal. Pen, 4: 297. 1924; Gagnep. in Fl. Gén. I.-C. 6: 650. 1934; Holtt., Rev. Fl. Malaya 1: 65. 1953; de Vogel, Blumea 17: 346. f. 10. 1969.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Herb, 40–60(–70) cm. Scales (3–)5(–7) mm long, (5–)10–22-nerved. Leaves linear-lanceolate, acute (filiform tip 6–13 mm), (13–)17–27(–45) by (0.45–)0.6–1.3(–1.5) cm; nerves (13–)18–80(–92), (3–)5 of which are more prominent; sheath not marked. Racemes pendulous, almost always with a tuft of sterile bracts at base, with 2–12 side branches mostly emerging from between sterile bracts; 15–25(–32) flowers along each branch. Bracts narrowly triangular to lanceolate, acute (filiform tip up to 0.5 mm); sterile bracts up to 20 by 4 mm, mostly smaller, fertile ones 2–10(–16) by 1–1.5 mm, 3(–5)-nerved. Flowers 1, 2–1, 4(–1.9) cm, white or yellow with recurved perianth. Sepals 3.3–4.5 by 0.6–1 mm, 3-nerved, cusp 0.3–0.4(–0.5) by 0.1 mm. Petals all equal, 3.3–4.5 by 0.5–0.6(–1) mm, (1–)3(–5)-nerved, cusp 0.3(–0.6) by 0.1 mm. Column 0.5–1.1 by 0.2–0.3 mm, strongly curved, rarely straight. Stamens 3.2–3.5(–4) by 0.7–1.2(–1.4) mm; anthers elongate-semielliptic in cross-section, base sagittate with equal to slightly unequal lobes 0.2–0.3 mm long, connective prolonged for 0.4–0.7 mm. Ovary 8–11 by 0.8–1 mm. Free part of style 3.6–4 by 0.2 mm with 2 more or less obscure longitudinal ribs. Stigma broadened at base, either flattened, orbicular to irregularly quadrangular, sometimes 3-lobed, or conical. Fruit 1.2–1.5 by 1 mm, green. Seeds regularly alveolate to nearly smooth.

Thailand : PENINSULAR: Nakhon Si Thammarat (Khao Soi Dao).

Distribution : Burma, Cambodia, S Vietnam, Malay Peninsula (type), throughout Indonesia to Java and Borneo.

Ecology : Primary forests, hills and mountains, 100–1,300 m alt.