e-Flora of Thailand

Volume 14 > Part 3 > Year 2019 > Page 485 > Hypericaceae > Cratoxylum

4. Cratoxylum maingayi Dyerwfo-0000625768

in Hook.f., Fl. Brit. India 1: 258. 1874; King, J. Asiat. Soc. Bengal, Pt. 2, Nat. Hist. 59(2): 145. 1890; Gagnep., Notul. Syst. (Paris) 1: 19. 1909; Ridl., Fl. Malay Penins. 1: 152. 1922; Gogelein, Blumea 15: 470. 1967; N.Robson in Fl. Males., Ser. I, Spermat. 8: 4–6. 1974; Corner, Wayside Trees of Malaya 1: 325. 1988; Phengklai & Niyomdham, Fl. Peat Swamp Narathiwat 197. 1991; S.Gardner et al., Field Guide Forest Trees N. Thailand: 49. 2000.


Accepted Name : This is currently accepted.



Synonyms & Citations :

Cratoxylum harmandii Pierre, Fl. Forest. Cochinch. 1: t. 53. 1882; Gagnep., Notul. Syst. (Paris) 1: 18. 1909.
Cratoxylum formosum var. thorelii Pierre ex Gagnep., Notul. Syst. 1; 19. 1909.— C. thorelii Pierre ex Gagnep., Fl. Indo-Chine [P.H.Lecomte et al.] Suppl. 1: 252. 1943.
Cratoxylum cochinchinense var. calcareum Ridl., Bull. Misc. Inform. Kew 1938: 115. 1938.
Cratoxylum acuminatum Merr., Papers Mich. Acad. Sc. 23: 185. 1938.
Cratoxylum subglaucum Merr., Papers Mich. Acad. Sc. 23: 186. 1938.
Cratoxylum parvifolium Merr., J. Arnold Arbor. 19: 56. 1938.


Description : Deciduous shrubs or trees to 20 m tall; outer bark of many, thin flaking layers, brown, inner bark brown; exudate yellow. Leaves petioled, 0.5–1 cm long; obovate to elliptic to oblong, 2–9 by 1–4.5 cm, coriaceous, base round to cuneate, apex acute to round, midrib dark green adaxially, greyish pale to light green adaxially, secondary veins present, raised on both surfaces. Inflorescence axillary cymes of 2–4 flowers on leafless twigs; flowers pink-white; pedicels light green, 0.2–0.6 cm long. Sepals 2.5–5 by 1–3 mm, oblong, light green. Petals elliptic, 6–12 by 2–5 mm, dark red, lateral veins present. Stamens numerous; filaments white; anthers cream. Ovary 2–3 mm long; styles as long as petals. Fruit 2–4 mm diam., oblong to acute. Seeds winged, 5–6 per locule, oblong to ovate-oblong.


Thailand : NORTHERN: Chiang Mai; NORTH-EASTERN: Nakhon Phanom; PENINSULAR: Ranong, Trang, Narathiwat.


Distribution : Indochina, Malay Peninsula (type), Singapore, Sarawak, Sumatra.


Ecology : Lowland forests, peat swamp forests, from near sea level to 850 m alt. Flowering: May–June.Fruiting: November–December.


Vernacular : Taeo (แต้ว)(Ranong); tao (ต้าว)(Narathiwat).


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