Calochortoideae

Calochortoideae
Sego Lily
Calochortus nuttallii
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Monocots
Order: Liliales
Family: Liliaceae
Subfamily: Calochortoideae
Dumort.
Genera

The Calochortoideae are a subfamily of monocotyledon perennial, herbaceous mainly bulbous flowering plants in the Liliaceae (lily) family. Approximately the same group of species has been recognized as a separate family, Calochortaceae, in a few systems of plant taxonomy, including the Dahlgren system.[1] They are found predominantly in the temperate regions of the Northern Hemisphere, particularly East Asia and North America.

Description

Flowers large with no or a very short style. Perianth differentiated into calyx and corolla, tepals pubescent. The embryo-sac is of the Polygonum-type.[2][3] Fruit forms a septicidal capsule.[4] Leaves have parallel venation. Chromosome number is between 6-13, and are 1.5 to 6.5µmin length.

Taxonomy

The two genera comprise about 90 species.

References

  1. ↑ Watson, L.; Dallwitz, M.J. (1992 onwards). "Calochortaceae Dum.". The families of flowering plants: descriptions, illustrations, identification, information retrieval. Retrieved 2014-01-13. Check date values in: |date= (help)
  2. ↑ Dahlgren, R.M.; Clifford, H.T.; Yeo, P.F. (1985). The families of the monocotyledons. Berlin: Springer-Verlag.
  3. ↑ Ownbey, M. (1940). "A monograph of the genus Calochortus.". Ann. Missouri Bot. Gard. 27: 371–560. doi:10.2307/2394384.
  4. ↑ Mabberley, David J (2013). Mabberley's Plant-Book (3 ed.). Cambridge University Press. ISBN 1107782597. Retrieved 8 January 2014.