Vatica rassak
Content
Description
Twig, petioles, buds, and stipules outside (glabrous within) very shortly evenly persistently pale buff pubescent, leaf nervation beneath sparsely so.
Leaves 13-32 by 5-11 cm, oblong to narrowly elliptic, thickly coriaceous;
Stipules to 14 by 4 mm, lorate, subacute, subpersistent.
Panicle to 14 cm long, terminal or axillary, ribbed, at first shortly evenly buff pubescent, becoming pale brown flaky;
Fruit glabrous.
Distribution
Aru Is present, Asia-Tropical: Borneo present; Maluku (Maluku present); New Guinea present; Sulawesi (Sulawesi present), Batjan present, E. of Rejang valley and Sampit, commonest on E. coast present, Halmaheira present, Mangoli present, Morotai present, Obi Is present, S. Philippines present, Sudest I present, Sula Is present, Sulu Is present, Tawi Tawi present
Malesia: Borneo (E. of Rejang valley and Sampit, commonest on E. coast), S. Philippines (Sulu Is.: Tawi Tawi), Celebes, Moluccas (Sula Is.: Mangoli; Morotai, Halmaheira, Batjan, Obi Is., Aru Is.), New Guinea, Sudest I.
Notes
Another variable semi-gregarious chiefly riparian species (see e.g. V. umbonata).
The above description defines my interpretation of this variable species. The large, oblong-elliptic, coriaceous leaves with long petiole, and the large, corky nut, are characteristic though the nut shape is very variable (in part owing to the degree of maturity on herbarium specimens). Its distribution into seasonal areas and its semi-gregarious ecology parallel that of other polymorphic species such as Anisoptera costata Korth., A. thurifera (Blco) Bl., and Vatica umbonata (Hook.f.) Burck. The variation is locally too great to clearly distinguish geographical subspecies.
Some hybridisation appears to occur with V. umbonata in East Sabah.
The above description defines my interpretation of this variable species. The large, oblong-elliptic, coriaceous leaves with long petiole, and the large, corky nut, are characteristic though the nut shape is very variable (in part owing to the degree of maturity on herbarium specimens). Its distribution into seasonal areas and its semi-gregarious ecology parallel that of other polymorphic species such as Anisoptera costata Korth., A. thurifera (Blco) Bl., and Vatica umbonata (Hook.f.) Burck. The variation is locally too great to clearly distinguish geographical subspecies.
Some hybridisation appears to occur with V. umbonata in East Sabah.
Citation
K.Sch. & Hollr. 1889: Fl. Kais.-Wilh. Land: 52
Ashton 1968: Man. Dipt. Brun: 35: f. 5
Brandis 1895 – In: J. Linn. Soc. Bot.: 125
Brandis & Gilg 1895 – In: E. & P., Pfl. Fam., ed. 1, 3: 270
Sloot. 1927 – In: Bull. Jard. Bot. Btzg: 77
Bl. 1867 – In: Ann. Mus. Bot. Lugd.-Bat.: 85
Burck 1887 – In: Ann. Jard. Bot. Btzg: 225
Foxw. 1938 – In: Philip. J. Sc.: 328
Bl. 1942: p. 223. – In: Bull. Jard. Bot. Btzg: f. 22-24
Brandis 1895 – In: J. Linn. Soc. Bot.: 127
Merr. 1921: En. Born.: 409
Brandis 1942 – In: Bull. Jard. Bot. Btzg: 254
Brandis 1895 – In: J. Linn. Soc. Bot.: 127
Burck 1887 – In: Ann. Jard. Bot. Btzg: 229
Walp. 1857 – In: Ann.: 337
Ashton 1978 – In: Gard. Bull. Sing.: 20
Merr. 1926 – In: Philip. J. Sc.: 411
K.Sch. & Laut. 1901: Fl. Schutzgeb.: 451
Burck 1927: Nutt. Pl., ed. 2: 1129
Heyne 1917 – In: Nutt. Pl., ed. 1: 313
Dyer 1952: p. 63. – In: Reinwardtia: f. 21
Sloot. 1926 – In: Nova Guinea: 226
White & Francis 1927 – In: Proc. R. Soc. Qsl.: 247
apud Holth. & Lam 1942 – In: Blumea: 214
Brandis 1952 – In: Reinwardtia: 65
K.Sch. & Hollr. 1889: Fl. Kais. Wilh. Land: 52
Sloot. 1942: p. 233. – In: Bull. Jard. Bot. Btzg: f. 27
Meijer & Wood. 1964: p. 314. – In: Sabah For. Rec.: f. 56
Sloot. 1942: p. 228. – In: Bull. Bot. Gard. Btzg: f. 25-26
Diels 1922 – In: Bot. Jahrb.: 463
Gresh. 1900 – In: Ind. Mercuur: tab.
Heyne 1917 – In: Nutt. Pl., ed. 1: 313
Heyne 1927: Nutt. Pl., ed. 2: 1129
Miq. 1859 – In: Fl. Ind. Bat.: 502
Brandis & Gilg 1895 – In: E. & P., Pfl. Fam., ed. 1, 3: 270
Bl. 1927: Nutt. Pl., ed. 2: 1130
Bl. 1900: Schets. Nutt. Ind. Pl.: t. 50
Brandis & Gilg 1895: p. 269. – In: E. & P., Pfl. Fam., ed. 1, 3: fig.
Heyne 1927: Nutt. Pl.: 1129
Diels 1922 – In: Bot. Jahrb.: 463
Lane-Poole 1925: For. Res. Papua: 120
Dyer 1927: 73,112. – In: Bull. Jard. Bot. Btzg: f. lb
Sloot. 1927: 73,104. – In: Bull. Jard. Bot. Btzg: f. Ic
DC. 1868 – In: Prod.: 619
Brandis 1895 – In: J. Linn. Soc. Bot.: 124