The genus Crossyne in the Amaryllis Family (Amaryllidaceae) is endemic to the Western Cape of South Africa. They are herbaceous perennials growing from a true bulb. The flowers are borne in an umbel, a cluster at the top of the peduncle or stalk.
This genus is most closely related to Boophone and Crinum, and their close relatives.
There are just two species in the genus:
Bjørnstad, I.N & Friis, I. (Friis, I. & Nordal, I.)1972-1976. Studies on the
genus Haemanthus L. (Amaryllidaceae) I--IV. Norw. J. Bot. 19: 187--206; 19:
207--222; 21: 243--275; 23: 63--77. The last reference providing keys to the
species, list of synonyms, and necessary combinations.
Bulbous Plants of Southern Africa, Neil du Plessis and Graham Duncan, Tafelberg Pub. Ltd., Cape Town (1989).
Bulbs for Warm Climates, Thad M. Howard, University of Texas Press, Austin (2001).
Bulbs, Revised Edition, John E. Bryan, Timber Press, Portland (2002).
Cape Bulbs, Richard L. Doutt, Timber Press, Portland, Portland (1994).
RHS Manual of Bulbs, John Bryan and Mark Griffiths, Eds., Timber Press, Portland (1995).
The Color Encyclopedia of Cape Bulbs, John Manning, Peter Goldblatt, and Dee Snijman, Timber Press, Portland (2002).