Bibliografia

Principal

• Biology . Benjamin Cummings: Campbell, N.A. and Reece, J.B. 2005 null
• Biology of Plants. 7ª Ed. W.H. Freeman and Companys Worth Publishers: Raven PH, Evert RF & Eichhorn SE 2005 null

Secundária

• Botany. WCM Publishers. London: Moore R, Clark WD, Stern KR & Vodopich D 1995 null