Tristira triptera

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Tristira triptera


Tree, 6-12(-20) m high, dbh up to 15 cm, bark white. Branchlets terete, 3-6 mm diam., ferrugineous-velutinous, early to late glabrescent, shiny greyish to purple-brown or black, scattered (often very sparsely) minutely pustular-lenticellate. Leaves (3-)5(-7)-jugate (those near the inflorescences 1- or 2-jugate), axial parts sparsely hairy, ± glabrescent, to tardily ferrugineous-velutinous; Inflorescences 7-30 cm long, with few erec-to-patent branches; Flowers creamy. Sepals: Stamens: Ovary sharply trigonous-ellipsoid, c. 2.5 mm high; Fruits 2.5-3.5 by 1.5-2.5 cm; Seeds with basal, orbicular, small hilum;


Asia-Tropical: Maluku (Maluku present); Sulawesi (Sulawesi present), Ceram present, E Philippines present, Luzon present, Mindanao present, Sula Islands present
Malesia: E Philippines (from Luzon to Mindanao), Celebes, Moluccas (Sula Islands, Ceram).


The infraspecific variation is mainly in the degree of hairiness, the shape of the fruit, and the crenation of the leaflet-margins. The first character, primarily used by Merrill and Radlkofer to delimit some species, grades throughout the range of the species. The shape of the fruit also grades from globular with the wings only touching at the apex (emarginate) to ellipsoid with the wings united and tapering into the stylar apiculum. The laxly crenate leaf-margin, used by Koorders and Radlkofer to characterize T. celebica from Celebes, is also and even better shown by FB (Miranda) 20542 from Mindanao, while other specimens show a tendency towards it. None of these characters are correlated.


Radlk. 1923 – In: Enum. Philipp. Flow. Pl.: 502
Merr. 1918: Sp. Blanc.: 239
Radlk. 1932 – In: Engl., Pflanzenr. 98: 868
Koord. 1922 – In: Suppl. Cel.: t. 54
Ceron 1892: Cat. Pl. Herb. Manila: 53: pro Vidal 220
Radlk. 1932 – In: Engl., Pflanzenr. 98: 869
Radlk. 1932 – In: Engl., Pflanzenr. 98: 869
Kraemer 1951: Trees West. Pacific Reg: 224: f. 80
Vidal 1883: Sinopsis: t. 35 f. c.
Radlk. 1932 – In: Engl., Pflanzenr. 98: 869
Blanco 1878 – In: Fl. Filip., ed. 3: 16