Geniostoma

Geniostoma
Geniostoma ligustrifolium
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Gentianales
Family: Loganiaceae
Genus: Geniostoma
J.R.Forst. & G.Forst.

Geniostoma is a genus of around 25 species of flowering plants in the family Loganiaceae. They are shrubs or small trees, with inflorescences borne in the axils of the simple, petiolate, oppositely-arranged leaves.[1] The flowers are arranged in cymes, and each is pentamerous.[1]

The name Geniostoma derives from the Greek roots geneion ("beard") and στόμα (stoma; "mouth"), referring to the hairs in the corolla tube of some species.[2] The genus is widely distributed across the Pacific Ocean from Japan, Malesia to Australia in the west, and east to the Tuamotu Archipelago; one species is also found on the Mascarene Islands.[2]

The Hawaiian endemic genus Labordia has been included in Geniostoma by some authors.[2][3] These two genera have been grouped together in the family "Geniostomaceae",[4] but are considered by the Angiosperm Phylogeny Group to be part of a wider Loganiaceae.[5]

Selected species

Further reading

References

  1. 1 2 Li Ping-tao & Antony J. M. Leewenberg. "Geniostoma J. R. Forster & G. Forster". Myrsinaceae through Loganiaceae. Flora of China. 15.
  2. 1 2 3 "Geniostoma". Flora of Australia Online. Australian National Botanic Gardens. Retrieved March 9, 2012.
  3. ↑ "List of genera in family Loganiaceae". Vascular Plant Families and Genera. Royal Botanic Gardens, Kew. Retrieved March 9, 2012.
  4. ↑ D. J. Mabberley (1997). The Plant-book: a Portable Dictionary of the Vascular Plants (2nd ed.). Cambridge University Press. p. 296. ISBN 9780521414210.
  5. ↑ P. F. Stevens. "Angiosperm Phylogeny Website". Retrieved March 9, 2012.


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