Ghahreman, A. & M. Khatamsaz 1996: The genus Hyoscyanus L. (Solanaceae) in Iran. -Iran. Journ. Bot. 7 (1): 31-37. Tehran.
Khatamsaz, M. 1978: Solanaceae in Flora of Iran, no. 24. -Tehran, in press.
Lynch, S. P. & G. L. Webster 1975: A new technique of preparing pollon for scaning electron microscopy. -Grana 15: 127-136.
Polo, J. M. & M. J. Diez 1986: Contribution al atlas palinogico de punt, W. S. Blackmore, S. Nilsson & A. le Thomas. 1994: Glossary of pollen and spore terminalogy. Lab. palaeobot. Palynol. Contr. ser I. LPP Foundation, -Utrect.
Reynolds, T. L. 1984: An ultrastructural and streological analysis of pollen grains of H. niger during normal ontogeny and included embryogenetic development. -Amer. J. Bot. 71: 490-504.
Schonbeck- Temesy, E. 1972: Hyoscyamus in K. H. Rechinger (ed.) Flora Iranica no. 100: 49-79. -Graz.
)
