Ixonanthes reticulata

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Ixonanthes reticulata

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Description

Treelet or tree up to 40 m, bole up to 1 m diam. Leaf scars round to ovate. Leaves elliptic, elliptic oblong, or slightly ovate, entire, 5.5-14 by 3-10 cm, pergamentaceous to coriaceous; Stipules up to 1 mm. Inflorescences lax. Flowers at anthesis 3-5.5 by 2-7 mm. Sepals elliptic, 4-5 by 3-4 mm (in fruit enlarging to c. 8 by 4 mm), within from top to bottom with a slightly thickened and paler band, fleshy to coriaceous in fruit. Petals orbicular to elliptic, 4-5.5 by 3-4 mm (in fruit enlarging to c. 10 by 6 mm), within from the base upwards thickened by a bundle of nerves, margin broadly hyaline, sub-coriaceous in fruit. Ovary globose, c. 3 by 2 mm. Capsule long-ellipsoid, (2-)3-4(-4.5) cm long, valves not apically bifid; Seeds 1.8-2 by 0.4-0.9 cm.

Distribution

Asia-Temperate: China South-Central (Yunnan present); Hainan (Hainan present), Asia-Tropical: Assam (Assam present); Jawa (Jawa absent); Lesser Sunda Is. absent; Maluku (Maluku), Kwangsi present, Kwantung present, Kweichow present, S. China present
From Assam through Indochina to S. China (Kwangsi, Kwantung, Yunnan, Kweichow, Hainan); throughout Malesia (but not in Java and Lesser Sunda Islands, and not yet collected in the Moluccas).

Notes

This species is the only one with certainty found in New Guinea. As identification of sterile collections is not possible, such collections from New Guinea are tentatively included in I. reticulata, but might belong in part to I. petiolaris.

Citation

HEYNE 1927: Nutt. Pl. Ned. Ind.: 854
Merr. 1921: Enum. Born.: 313
BROWNE 1955: For. Trees Sarawak Brunei: 175
RIDLEY 1922 – In: Fl. Mal. Pen.: 326
Merr. 1952 – In: J. Arn. Arb.: 228
JACK 1870: Illust.: 69
Corner 1940: Wayside Trees: 222: f. 60
HALL.f. 1923 – In: Beih. Bot. Centralbl.: 9
PIERRE 1945 – In: Fl. Gén. I.-C., ed. 2: 501
HANCE 1876 – In: J. Bot.: 243
COCKBURN 1972 – In: Tree Fl. Mal.: 307
Miq. 1859 – In: Fl. Ind. Bat.: 494
GUILLAUMIN 1911 – In: Fl. Gén. I.-C.: 584
King 1893 – In: J. As. Soc. Beng.: 192
KOOL 1980: p. 200. – In: Blumea: f. 3A.