Exacum
Encyclopedia
Exacum is a genus of plant
Plant
Plants are living organisms belonging to the kingdom Plantae. Precise definitions of the kingdom vary, but as the term is used here, plants include familiar organisms such as trees, flowers, herbs, bushes, grasses, vines, ferns, mosses, and green algae. The group is also called green plants or...

 in family Gentianaceae
Gentianaceae
Gentianaceae are a family of flowering plants of 87 genera and over 1500 species. Flowers are actinomorphic and bisexual with fused sepals and petals. The stamens are attached to the inside of the petals and alternate with the corolla lobes. There is a glandular disk at the base of the gynoecium,...

. It contains the following species (but this list may be incomplete):
  • Exacum affine
    Exacum affine
    Exacum affine is a species of plant in the Gentianaceae family. It is endemic to Socotra islands of Yemen. Its natural habitat is rocky areas. A small herbaceous biennial plant with dark green, ovate leaves. The small purple flowers have a yellow centre with fragrance.-References:* Miller, A....

    , Balf.f.
    Isaac Bayley Balfour
    Sir Isaac Bayley Balfour FRS FRSE was a Scottish botanist. He was the son of John Hutton Balfour who was also a botanist.-Biography:...

     ex Regel
  • Exacum caeruleum
    Exacum caeruleum
    Exacum caeruleum is a species of plant in the Gentianaceae family. It is endemic to Yemen. Its natural habitat is subtropical or tropical dry shrubland.-Source:* Miller, A. 2004. . Downloaded on 21 August 2007....

    , Balf.f.
    Isaac Bayley Balfour
    Sir Isaac Bayley Balfour FRS FRSE was a Scottish botanist. He was the son of John Hutton Balfour who was also a botanist.-Biography:...

  • Exacum socotranum
    Exacum socotranum
    Exacum socotranum is a species of plant in the Gentianaceae family. It is endemic to Yemen. Its natural habitat is rocky areas. It is threatened by habitat loss.-Source:* Miller, A. 2004. . Downloaded on 21 August 2007....

    , Balf.f.
    Isaac Bayley Balfour
    Sir Isaac Bayley Balfour FRS FRSE was a Scottish botanist. He was the son of John Hutton Balfour who was also a botanist.-Biography:...

  • Exacum tinervium,
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