Polile Augustine Molumeli, Vicente Espinosa Hernandez, Muhammad Ehsan, Sergio Benedicto Valdez, Enrique Ojeda Trejo, Victor Manuel Cetina Alcala, Angel Alderete-Chavez, Nancy de la Cruz-Landero and Karina Santamaria Delgado
International Journal of Botany 4 ( 4 ): 390 - 405 , 2008