''Bouchardatia'' is a genus of two species of tree in the family

Rutaceae The Rutaceae is a family, commonly known as the rueRUTACEAE
in BoDD – Botanical Derm ...

, one species

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 elsew ...

to eastern Australia, the other to

New Guinea New Guinea (; Hiri Motu Hiri Motu, also known as Police Motu, Pidgin Motu, or just Hiri, is a language of Papua New Guinea, which is spoken in surrounding areas of Port Moresby (Capital of Papua New Guinea). It is a simplified version of ...

. They have compound leaves with three or five leaflets, and are arranged in opposite pairs. The flowers are

bisexual Bisexuality is a romantic or sexual attraction or behavior toward both males and females, or to more than one gender. It may also be defined to include romantic or sexual attraction to people regardless of their sex or gender identity, whi ...

, arranged in

panicle A panicle is a much-branched inflorescence. (softcover ). Some authors distinguish it from a compound spike inflorescence, by requiring that the flowers (and fruit) be pedicellate (having a single stem per flower). The branches of a panicle are of ...

s, each flower with four

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 ...

, four

petal Petals are modified Leaf, leaves that surround the reproductive parts of flowers. They are often advertising coloration, brightly colored or unusually shaped to attract pollinators. All of the petals of a flower are collectively known as the ''c ...

s and eight

stamen The stamen (plural ''stamina'' or ''stamens'') is the pollen-producing reproductive organ of a flower. Collectively the stamens form the androecium., p. 10 Morphology and terminology A stamen typically consists of a stalk called the filame ...

s, the petals and stamens all free from each other. The fruit has up to four ridged follicles fused at the base, each containing a single seed.

Description

Plants in the genus ''Bouchardatia'' are shrubs or trees with compound leaves arranged in opposite pairs, the leaves with three or five leaflets, rarely two or the leaves simple. The flowers are bisexual with four sepals fused at the base, four petals that are free from each other but overlapping each other, and eight stamens that alternate in length. The fruit is of up to four ridged follicles joined at the base with a woody

exocarp Fruit anatomy is the plant anatomy of the internal structure of fruit. Fruits are the mature ovary or ovaries of one or more flowers. They are found in three main anatomical categories: aggregate fruits, multiple fruits, and simple fruits. Aggr ...

. Each follicle contains a single shiny brown seed.

Taxonomy

The genus ''Bouchardatia'' was first formally described in 1867 by

Henri Ernest Baillon Henri Ernest Baillon was a French botanist and physician. He was born in Calais on 30 November 1827 and died in Paris on 19 July 1895. Baillon spent his professional life as a professor of natural history, and he published numerous works on bo ...

in the journal ''Adansonia''. The first species to be described was ''B. australis'', now considered to be a

synonym A synonym is a word, morpheme, or phrase that means exactly or nearly the same as another word, morpheme, or phrase in a given language. For example, in the English language, the words ''begin'', ''start'', ''commence'', and ''initiate'' are all ...

of ''B. neurococca''.

Species list

The names of two species are accepted by

Plants of the World Online Plants of the World Online (POWO) is an online database published by the Royal Botanic Gardens, Kew. It was launched in March 2017 with the ultimate aim being "to enable users to access information on all the world's known seed-bearing plants by ...

: *'' Bouchardatia cyanosperma''

Ridl. Henry Nicholas Ridley CMG (1911), MA (Oxon), FRS, FLS, F.R.H.S. (10 December 1855 – 24 October 1956) was an English botanist, geologist and naturalist who lived much of his life in Singapore. He was instrumental in promoting rubber trees ...

that is endemic to New Guinea; *'' Bouchardatia neurococca'' (F.Muell.)

Baill. Henri Ernest Baillon was a French botanist and physician. He was born in Calais on 30 November 1827 and died in Paris on 19 July 1895. Baillon spent his professional life as a professor of natural history, and he published numerous works on ...

that is endemic to eastern Australia.

Distribution and habitat

'' Bouchardatia neurococca'' grows in rainforest, especially dry rainforest, from near sea level to an altitude of and from

Mackay Mackay may refer to: *Clan Mackay, the Scottish clan from which the surname "MacKay" derives Mackay may also refer to: Places Australia * Mackay Region, a local government area ** Mackay, Queensland, a city in the above region *** Mackay Airpor ...

in central-eastern Queensland to the

Richmond River The Richmond River is a river situated in the Northern Rivers region of New South Wales, Australia. Course and features The river rises at the northern end of the Richmond Range, near its junction with the McPherson Range, on the Queensla ...

in north-eastern New South Wales. '' Bouchardatia cyanosperma'' occurs in New Guinea.

Ecology

''Bouchardatia'' leaves possess

domatia A domatium (plural: domatia, from the Latin "domus", meaning home) is a tiny chamber that houses arthropods, produced by a plant. Ideally domatia differ from galls in that they are produced by the plant rather than being induced by their inhabi ...

that are inhabited by oribatid mites.

References

{{Taxonbar, from=Q5484973 Zanthoxyloideae genera Flora of New South Wales Flora of Queensland Flora of New Guinea Taxa named by Henri Ernest Baillon