1. Bjornstad I N 1970 Comparative embryology of Asparagoideae-Polygonateae, Liliaceae;Nytt Mag. Bot.
17 169–207
2. Cheadle V I and Kosakai H 1971 Vessels in Liliaceae;Phytomorphology
21 320–333
3. Cronquist A 1981An integrated system of classification of flowering plants (New York: Columbia University Press)
4. Dahlgren R, Clifford H T and Yeo P F 1985The families of the monocotyledons, structure, evolution and taxonomy (New York, Tokyo: Springer-Verlag)
5. Erdtman G 1952Pollen morphology and plant taxonomy: Angiosperms (Waltham: Chronica Botanica)