genus
Genus ( plural genera ) is a taxonomic rank used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In the hierarchy of biological classification, genus com ...
of
tree
In botany, a tree is a perennial plant with an elongated stem, or trunk, usually supporting branches and leaves. In some usages, the definition of a tree may be narrower, including only woody plants with secondary growth, plants that are ...
s up to 90 m tall in family
Irvingiaceae
Irvingiaceae is a family of flowering plants, consisting of 13 species in the 3 genera ''Allantospermum'', ''Irvingia'' and ''Klainedoxa''. '' Desbordesia'', formerly accepted is now included in ''Irvingia''.
The family is named for the Scottish ...
. Formerly it has been included in families
Simaroubaceae
The Simaroubaceae are a small, mostly tropical, family in the order Sapindales. In recent decades, it has been subject to much taxonomic debate, with several small families being split off. A molecular phylogeny of the family was published in 200 ...
and
Ixonanthaceae
Ixonanthaceae is a pantropical flowering plant
Flowering plants are plants that bear flowers and fruits, and form the clade Angiospermae (), commonly called angiosperms. The term "angiosperm" is derived from the Greek words ('container, ves ...
. It contains the following two species:
* ''
Allantospermum borneense
''Allantospermum borneense'' is a tree in the family Irvingiaceae. The specific epithet ' is from the Latin meaning "of Borneo".
Description
''Allantospermum borneense'' grows as a large tree up to tall with a trunk diameter of up to and large ...
'' -
Malesia
Malesia is a biogeographical region straddling the Equator and the boundaries of the Indomalayan and Australasian realms, and also a phytogeographical floristic region in the Paleotropical Kingdom. It has been given different definitions. The ...
* ''
Allantospermum multicaule
''Allantospermum'' is a genus of trees up to 90 m tall in family Irvingiaceae. Formerly it has been included in families Simaroubaceae and Ixonanthaceae. It contains the following two species:
* ''Allantospermum borneense'' - Malesia
* '' Alla ...