Lithocarpus korthalsii
A large tropical Asian Fagaceae tree native to Java and Sumatra, distributed across Sumatra, Borneo, and Java, reaching up to 45 m tall with hardwood used for house construction, originally described under Quercus and later reclassified to its current genus, described by Endlicher and given its current name by Soepadmo in Reinwardtia (1970), with no listed subspecies.
Summary
A large tree native to Sumatra and Java, locally common but scattered in lowland and montane forest from 150–1900 m, reaching up to 45 m tall with a bole up to 20 m long and a diameter of up to 150 cm; buttresses are small. The bark is fissured to scaly and dark grey, with inner bark whitish then pinkish. Leaves are elliptical-oblong (11–23 cm long, 3–9 cm wide) with an acuminate apex; the upper surface is glabrous and the lower surface densely glaucous tomentose, and 13–20(–25) pairs of secondary veins are prominent below. Cupule is saucer-shaped, 3.5–4.5 cm across; the nut is depressed ovoid-globose, glabrous, largely free from the cupule. The wood is dense, about 900 kg/m3 at 15% moisture, and vernacular names include pasang abu, pasang susu, pasang kapur.
The wood is used as mempening for house construction.
Lifecycle
Perennial
Height
148 feet
Foliage Color
Discolourous foliage; lower surface densely glaucous.
Taxonomy
- Taxonomic Rank
- Species
- Author
- (Endl.) Soepadmo
- Publication
- Reinwardtia 8: 251 (1970)
Superior Taxa
- Kingdom
- Plantae
- Subkingdom
- Pteridobiotina
- Phylum
- Angiosperms
- Order
- Fagales
- Family
- Fagaceae
- Genus
- Lithocarpus
Synonyms
Lithocarpus heliciformis Lithocarpus teysmannii Quercus annulata Quercus heliciformis Quercus hypoleuca Quercus korthalsii Quercus pseudoannulata Quercus pseudomolucca var. incrassata Quercus teysmannii Cyclobalanus tysmanni Pasania teysmannii Synaedrys heliciformis Synaedrys teysmannii Quercus acuminata Pasania korthalsii Quercus laurifolia