''Geijera'' is a genus of shrubs and trees in the family

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

and are

native Native may refer to: People * Jus soli, citizenship by right of birth * Indigenous peoples, peoples with a set of specific rights based on their historical ties to a particular territory ** Native Americans (disambiguation) In arts and entert ...

to New Guinea, Australia and New Caledonia. They have simple leaves arranged alternately,

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 of

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 ...

flowers usually with five, sometimes four,

sepal 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 ...

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

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 and fruit containing shiny black seeds.

Description

Plants in the genus ''Geijera'' are shrubs or trees with simple leaves arranged alternately. They have small, bisexual flowers arranged in many-flowered panicles in upper leaf

axil A leaf ( : leaves) is any of the principal appendages of a vascular plant stem, usually borne laterally aboveground and specialized for photosynthesis. Leaves are collectively called foliage, as in "autumn foliage", while the leaves, st ...

s and on the ends of branchlets and usually have five, sometimes four sepals, petals and stamens. The sepals are fused at the base, up to long, and persist in the fruit. The petals are white or cream-coloured, up to long and the stamens are up to long and arranged opposite the sepals. The fruit consists of up to five more or less spherical follicles joined at the base each with a single shiny black seed.

Taxonomy

The genus ''Geijera'' was first formally described in 1834 by Schott in his book ''Rutaceae - Fragmenta Botanica'' and the first species to be describe (the

type species In zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the species that contains the biological type specimen ...

) was '' Geijera salicifolia''. The name ''Geijera'' honours J.D. Geijer, a 17th century Swedish botanist.

Species list

The following is a list of species accepted by the

Australian Plant Census The Australian Plant Census (APC) provides an online interface to currently accepted, published, scientific names of the vascular flora of Australia, as one of the output interfaces of the national government Integrated Biodiversity Information Syst ...

, or

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 ...

for species outside Australia: * '' Geijera balansae''

Schinz Schinz is a Swiss surname. Notable people with the surname include: *Albert Schinz (1870–1943), Swiss-born U.S. editor and academic *Hans Schinz (1858–1941), Swiss explorer and botanist *Heinrich Rudolf Schinz Heinrich Rudolf Schinz (30 March ...

Guillaumin Guillaumin is a French surname. Notable people with the surname include: *Armand Guillaumin (1842–1927), French impressionist painter and lithographer *André Guillaumin André Louis Joseph Edmond Armand Guillaumin (21 June 1885 in Arrou &ndash ...

– New Caledonia * '' Geijera cauliflora''

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 ...

– New Caledonia * '' Geijera deplanchei'' ( Pancher & Siebert) Däniker – New Caledonia * '' Geijera linearifolia'' (

DC. Augustin Pyramus (or Pyrame) de Candolle (, , ; 4 February 17789 September 1841) was a Swiss botanist. René Louiche Desfontaines launched de Candolle's botanical career by recommending him at a herbarium. Within a couple of years de Candolle ...

) J.M.Black – South Australia, Western Australia * ''

Geijera parviflora ''Geijera parviflora'', commonly known as wilga, is a species of shrub or small tree in the family Rutaceae and is endemic to inland parts of eastern Australia. It has drooping branches, linear to narrow lance-shaped leaves, small white flowers ...

Lindl. John Lindley FRS (5 February 1799 – 1 November 1865) was an English botanist, gardener and orchidologist. Early years Born in Catton, near Norwich, England, John Lindley was one of four children of George and Mary Lindley. George Lindley w ...

– Queensland, New South Wales, Victoria, South Australia * '' Geijera salicifolia'' Schott – New Guinea, New Caledonia, Queensland, New South Wales, Northern Territory. Plants of the World Online includes ''G. helmsiae'' and ''G. paniculata'' but the Australian Plants Census lists these as

synonyms 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 '' Coatesia paniculata''.

Distribution and habitat

Most species of ''Geijera'' grow in tropical or subtropical rainforest. Three species occur on New Caledonia, and three in Australia, two of which are

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 ...

References

* {{Taxonbar, from=Q5530120 Taxa named by Heinrich Wilhelm Schott Zanthoxyloideae genera