Ismene (plant)

Ismene, or Peruvian daffodil, is a genus of South American plants in the Amaryllis family.[3] The species are native to Peru and Ecuador and widely cultivated elsewhere as ornamentals because of their large, showy flowers.[4][5]

Ismene
Ismene narcissiflora[1]
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Asparagales
Family: Amaryllidaceae
Subfamily: Amaryllidoideae
Genus: Ismene
Salisb.
Synonyms[2]
  • Liriope Herb., nom. illeg.
  • Elisena Herb.
  • Pseudostenomesson Velarde

Ismene produces tender perennial bulbs bearing a strong resemblance to those of Hymenocallis, a genus into which Ismene had often been grouped in the past. However, its morphology differs from Hymenocallis in several significant ways: its vegetative parts, natural range, and chromosome number are all distinct.

Ismene can be difficult to grow in the United States.[6]

Species

A list of Ismene species and their geographic distribution is given below.[2]

  • Ismene amancaes (Ruiz & Pav.) Herb – western Peru
  • Ismene hawkesii (Vargas) Gereau & Meerow – Cusco, Peru
  • Ismene longipetala (Lindl.) Meerow – southwestern Ecuador, northwestern Peru
  • Ismene morrisonii (Vargas) Gereau & Meerow – Apurímac, Peru
  • Ismene narcissiflora (Jacq.) M.Roem. – south-central Peru
  • Ismene nutans (Ker Gawl.) Herb. – Peru
  • Ismene pedunculata Herb. – Peru
  • Ismene ringens (Ruiz & Pav.) Gereau & Meerow – Peru
  • Ismene sublimis (Herb.) Gereau & Meerow – La Libertad, Peru
  • Ismene vargasii (Velarde) Gereau & Meerow – Peru

Hybrids
  • Ismene × deflexa Herb. (I. longipetala × I. narcissiflora) – Peru
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References
  1. illustration from Flore des serres et des jardins de l’Europe by Charles Lemaire and others. Gand [Gent], Louis van Houtte, 1849, volume 5, plate 440
  2. "Ismene". World Checklist of Selected Plant Families. Royal Botanic Gardens, Kew. Retrieved 2017-10-08.
  3. Herbert, William 1821. An Appendix: [General index to the Botanical magazine, vol. 43-48 containing a treatise on bulbous roots] page 45
  4. Jørgensen, P. M., M. H. Nee & S. G. Beck. (eds.) 2014. Catálogo de las plantas vasculares de Bolivia, Monographs in systematic botany from the Missouri Botanical Garden 127(1–2): i–viii, 1–1744.
  5. Brako, L. & J. L. Zarucchi. (eds.) 1993. Catalogue of the Flowering Plants and Gymnosperms of Peru. Monographs in systematic botany from the Missouri Botanical Garden 45: i–xl, 1–1286.
  6. Howard, Thad M. Bulbs for Warm Climates. Austin, Texas: University of Texas Press, 2001, pp 98–99.
  • International Bulb Society's gallery of photographs


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