| Lithocarpus kalkmanii | |
|---|---|
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Fagales |
| Family: | Fagaceae |
| Genus: | Lithocarpus |
| Species: | L. kalkmanii |
| Binomial name | |
| Lithocarpus kalkmanii | |
Lithocarpus kalkmanii is a tree in the beech family Fagaceae. This species is named for the Dutch botanist Cornelis Kalkman. [2]
Lithocarpus kalkmanii grows as a tree up to 30 metres (100 ft) tall with a trunk diameter of up to 60 cm (24 in). The brownish or greyish bark is cracked or lenticellate. Its coriaceous leaves are tomentose and measure up to 15.5 cm (6 in) long. The dark brown acorns are roundish and measure up to 6 cm (2 in) across. [2] This species produces fruits with an 'enclosed receptacle' morphology, where the seed becomes embedded in the basal tissue of the fruit as it develops. [3] This basal material becomes woody, granular and hard and replaces the outer wall of the ovary as the mechanically protective tissue for the seed.
This species probably belongs to the subgenus Eulithocarpus, based on Camus' infrageneric classification system, [4] because of its 'ER' fruit morphology and the few widely spaced concentric lamellae on the cupule.
Lithocarpus kalkmanii is endemic to Borneo where it is known only from Sabah. [1] [2] Its habitat is mixed dipterocarp to montane forests from 1,000 m (3,000 ft) to 1,500 m (5,000 ft) altitude. [2]
Lithocarpus beccarianus is a tree in the beech family Fagaceae. It is named for the Italian botanist Odoardo Beccari.
Lithocarpus blumeanus is a tree in the beech family Fagaceae. It is named for the German-Dutch botanist Carl Ludwig Blume.
Lithocarpus clementianus is a tree in the beech family Fagaceae. It is named for Governor Cecil Clementi Smith of the Straits Settlements.
Lithocarpus confragosus is a tree in the beech family Fagaceae. The specific epithet confragosus is from the Latin meaning "uneven", referring to the cupule wall surface.
Lithocarpus conocarpus is a tree in the beech family Fagaceae. The specific epithet conocarpus is from the Greek meaning "cone fruit", referring to the acorn shape.
Lithocarpus daphnoideus is a tree in the beech family Fagaceae. The specific epithet daphnoideus is from the Greek meaning "like Daphne", referring to the genus Daphne and its leaves.
Lithocarpus echinifer is a tree in the beech family Fagaceae. The specific epithet echinifer is from the Latin meaning "having straight spines", referring to the cupule.
Lithocarpus encleisacarpus is a tree in the beech family Fagaceae. The specific epithet is from the Greek meaning "enclosed fruit", referring to the acorns and cupules. The cupule is not fused to the nut though and often becomes irregularly dehiscent. The degree to which the nut is enclosed by the cupule varies across its geographic range. Trees in Lithocarpus are commonly known as the stone oaks and differ from Quercus primarily because they produce insect-pollinated flowers.
Lithocarpus gracilis is a tree in the beech family Fagaceae. The specific epithet gracilis is from the Latin meaning "slender", referring to the twigs.
Lithocarpus hatusimae is a tree in the beech family Fagaceae. It is named for the Japanese botanist Sumihiko Hatusima.
Lithocarpus hallieri is a tree in the beech family Fagaceae. It is named for the German botanist Johannes Gottfried Hallier.
Lithocarpus hystrix is a tree in the beech family Fagaceae. The specific epithet hystrix is from the Greek meaning "spiny", referring to the cupule.
Lithocarpus jacobsii is a tree in the beech family Fagaceae. It is named for the Dutch botanist Marius Jacobs. Trees in Lithocarpus are commonly known as the stone oaks and differ from Quercus primarily because they produce insect-pollinated flowers.
Lithocarpus keningauensis is a tree in the beech family Fagaceae. It is named for Keningau District in Sabah, to which the species is native.
Lithocarpus kochummenii is a tree in the beech family Fagaceae. It is named for the botanist K. M. Kochummen.
Lithocarpus lampadarius is a tree in the beech family Fagaceae. The specific epithet lampadarius is from the Greek lampas meaning "torch", referring to the use of its twigs as torches for fishing in Peninsular Malaysia.
Lithocarpus lucidus is a tree in the beech family Fagaceae. The specific epithet lucidus is from the Latin meaning "shining", referring to the acorn and leaf surface.
Lithocarpus mariae is a tree in the beech family Fagaceae. It is named for the Dutch botanical biographer Maria Johanna van Steenis-Kruseman.
Lithocarpus meijeri is a tree in the beech family Fagaceae. It is named for the Dutch botanist Willem Meijer.
Lithocarpus melataiensis is a tree in the beech family Fagaceae. It is named for, and native to, Bukit Melatai mountain in Sarawak, Borneo.