Question: Which genus has more species, Burretiokentia or Iris?

Context paragraphs:
Iris pseudopallida: Iris pseudopallida ('Southern Adriatic iris') is a species in the genus "Iris", it is also in the subgenus of Iris.  It is a rhizomatous perennial from Croatia.  It has flat, curved of sickle-shaped leaves, tall slender stems, 3-8 fragrant flowers, in shades of violet, or pale violet flowers, mauve, lavender, purple, yellow or white, between May and June.  The iris was originally thought to be a separate species, but later classified as subspecies of "Iris pallida", known as "Iris pallida subsp.  pseudopallida", although in Croatia, it is still known as "Iris pseudopallida".  It is cultivated as an ornamental plant in temperate regions, especially in the Balkan regions.

Iris arenaria: Iris arenaria (sand iris) is a species in the genus "Iris"; it is also in the subgenus of Iris and in the "Psammiris" section.  It is a rhizomatous perennial, from Central Europe, found in Hungary, Austria, Romania, Czech Republic and Ukraine.  It has grass-like leaves, a short stem and pale yellow flowers.  It has had a mixed origin and was once "Iris humilis subsp.  arenaria", a subspecies of "Iris humilis" (another Psammiris iris), until it was reclassified as a separate species.  But many sources still state that it is either a synonym or subspecies of "Iris humilis".  It is cultivated as an ornamental plant in temperate regions.

Burretiokentia: Burretiokentia is a genus of palms (Arecaceae) endemic to New Caledonia containing five species.  The relationships between Burretiokentia and some other genera of the tribe Basseliniinae including "Physokentia" and the New Caledonia endemic "Cyphophoenix" are not clear.

Iris subbiflora: Iris subbiflora is a species in the genus "Iris", it is also in the subgenus of Iris.  It is a rhizomatous perennial, from Portugal and Spain in Europe.  It has evergreen broad leaves, forming dense clumps, it has dwarf stems in late spring, (between April and May), with 1 upright fragrant flower, in shades of purple, light red purple, grey-blue, blue-violet, or dark violet.  It has a beard which is generally blue, purple, or violet, but can fade to white, dull yellow, or dark yellow.  After being found in 1804, it was once a separate species until the late 70s, when it was reclassified as subspecies of "Iris lutescens", and renamed "Iris lutescens subsp.  subbiflora".  But in the 80s it was returned to an independent species but some authors and references still class the species as a synonym or subspecies.  It is cultivated as an ornamental plant in temperate regions.

Iris spuria: Iris spuria is a species of the genus Iris, part of a subgenus series known as "Limniris" and in the Series "Spuriae".  It is a rhizomatous perennial plant, from Europe, Asia and Africa.  It has purple or lilac flowers, and slender, elongated leaves.  It is widely cultivated as an ornamental plant in temperate regions and hybridized for use in the garden.  It has several subspecies; "Iris spuria subsp.  carthaliniae" (Achv.  & Mirzoeva) B.Mathew, "Iris spuria subsp.  demetrii" (Achv.  & Mirzoeva) B.Mathew, "Iris spuria subsp.  maritima" (Dykes) P.Fourn.  and "Iris spuria subsp.  musulmanica" (Fomin) Takht.  It used to have 3 other subspecies, which have now been re-classified as separate species; "Iris spuria" subsp.  "halophila" (now "Iris halophila"), "Iris spuria" ssp.  "sogdiana" (now "Iris halophile subsp.  sogdiana") and "Iris spuria" subsp.  "notha" (now "Iris notha").

Iris scariosa: Iris scariosa is a species in the genus "Iris", it is also in the subgenus of Iris.  It is a rhizomatous perennial, from the mountainsides of Russia, Kazakhstan, Mongolia and China.  It has sword-like, or sickle shaped, blue green or grey-green leaves, a short flowering stem, 3 or 4 membranous or semi-transparent flower bud leaves, 2 violet, reddish violet, lilac, blue-purple, or blue flowers in late spring, with yellow or white beards.  It is cultivated as an ornamental plant in temperate regions.  It was merged with another similar iris in the region, and "Iris glaucescens" became a synonym of "Iris scariosa", before being divided into two separate species again.  Although some sources still call it the main species, despite a slight colour difference.

Iris aphylla: Iris aphylla (also known as 'leafless iris', 'table iris' or 'stool iris') is a species in the genus "Iris", it is also in the subgenus of Iris, and in "Section Iris".  It is a rhizomatous perennial, from Asia to Europe.  It is found in Azerbaijan, Russian Federation, Czechoslovakia, Germany, Hungary, Poland, Belarus, Ukraine, Bulgaria, Albania, Former Yugoslavia, Italy, Romania and France.  It has dark green or bright green, sword-shaped, long grass-like leaves, that die/fade away in the winter.  It also has a slender stem, with several branches and green and purplish spathes.  It has 3–5 large flowers, in shades of bright purple, purple, violet, dark blue, blue-violet and dark violet, which bloom between spring and early summer.  Occasionally, they re-bloom in the autumn, before the seed capsule is formed.  It is cultivated as an ornamental plant in temperate regions.  There is one known subspecies "Iris aphylla subsp.  hungarica" (Waldst.  & Kit.)  Hegi.

Iris (plant): Iris is a genus of about 260–300, species of flowering plants with showy flowers.  It takes its name from the Greek word for a rainbow, which is also the name for the Greek goddess of the rainbow, Iris.  Some authors state that the name refers to the wide variety of flower colors found among the many species.  As well as being the scientific name, "iris" is also very widely used as a common name for all "Iris" species, as well as some belonging to other closely related genera.  A common name for some species is 'flags', while the plants of the subgenus "Scorpiris" are widely known as 'junos', particularly in horticulture.  It is a popular garden flower.

Iris attica: Iris attica ('Greek Iris') is a species in the genus "Iris", it is also in the subgenus of Iris.  It is a rhizomatous perennial, from the mountains of the Balkans in Europe, within the countries of Greece, former Yugoslavia, Turkey and Macedonia.  It has sage green or grey-green leaves, that are sickle-shaped, a stout short stem and 2 variable flowers, in shades from yellow to purple.  They have a white or blue beard.  It is often called "Iris pumila subsp attica", but is classified in most sources, as a separate species, although it is closely related to "Iris pumila", as a possible parent plant.  It is cultivated as an ornamental plant in temperate regions.

Iris sambucina: Iris sambucina ('elder scented iris') is a species in the genus "Iris", it is also in the subgenus of Iris.  It is a rhizomatous perennial, from southern and central Europe (Germany, GB and Ireland, Italy, the Balkans, Croatia), and Spain.  It has green, curved or sword-like leaves, tall round stem (with branches), multiple flowers in shades from brown violet, or brown-purple, to purple-violet, blue violet, mauve, and to purple.  The large flowers are fragrant, with the scent of elderflowers, hence the name.  It was once separate species (when found), then it was classified as a synonym of "Iris germanica", before being classified (in some sources) as a separate species again, but with a hybrid origin from "Iris pallida" and "Iris variegata".  It is sometimes cultivated as an ornamental plant in temperate regions.

Supporting paragraphs: Burretiokentia Iris (plant)
Answer: Iris