''Perrierodendron rodoense'' is a tree in the family

Sarcolaenaceae The Sarcolaenaceae are a family of flowering plants endemic to Madagascar. The family includes 79 species of mostly evergreen trees and shrubs in ten genera. Recent DNA studies indicate that the Sarcolaenaceae are a sibling taxon to the family ...

. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found els ...

Madagascar Madagascar (; mg, Madagasikara, ), officially the Republic of Madagascar ( mg, Repoblikan'i Madagasikara, links=no, ; french: République de Madagascar), is an island country in the Indian Ocean, approximately off the coast of East Africa ...

. The

specific epithet In taxonomy, binomial nomenclature ("two-term naming system"), also called nomenclature ("two-name naming system") or binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, bot ...

' is for the

Irodo River The Irodo River is located in northern Madagascar. Its sources are situated in the Ambohitra Massif and flows into the Indian Ocean. Near Sadjoavato it formed the Tsingy Rouge, a stone formation of red laterite Laterite is both a soil and ...

(or Rodo), where the species was studied.

Description

''Perrierodendron rodoense'' grows as a tree up to tall with a trunk diameter of up to . Its

chartaceous This glossary of botanical terms is a list of definitions of terms and concepts relevant to botany and plants in general. Terms of plant morphology are included here as well as at the more specific Glossary of plant morphology and Gloss ...

to subcoriaceous leaves are

obovate The following is a list of terms which are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (a single leaf blade or lamina) or compound (with several leaflets). The edge of the leaf may be regular ...

in shape. They are coloured dark brown above, light brown below and measure up to long. The

inflorescences An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed on ...

bear a single flower with five

sepals A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 The term ''sepalum'' was coined b ...

and five whitish petals. The fruits are unknown.

Distribution and habitat

''Perrierodendron rodoense'' is known only from a single location in the Irodo basin in the northern

region In geography, regions, otherwise referred to as zones, lands or territories, are areas that are broadly divided by physical characteristics (physical geography), human impact characteristics (human geography), and the interaction of humanity and t ...

Diana Diana most commonly refers to: * Diana (name), a given name (including a list of people with the name) * Diana (mythology), ancient Roman goddess of the hunt and wild animals; later associated with the Moon * Diana, Princess of Wales (1961–1997) ...

. Its habitat is dry forests from sea level to altitude.

References

Sarcolaenaceae Endemic flora of Madagascar Trees of Madagascar Plants described in 2000 Flora of the Madagascar dry deciduous forests {{Sarcolaenaceae-stub