LIST OF AUTHORITIES 
“The Natural History of Plants.” Kerner. 
“A Student’s Text-Book of Botany.” Vines. 
“Handbook of the British Flora.” Bentham. 
“The Fertilisation of Flowers.” Miiller. 
“Physiology of Plants.” Darwin and Acton. 
“Flowering Plants and Ferns.” Willis. 
“British Wild Flowers and Insects.” Lord Avebury. 
“Buds and Stipules.” Lord Avebury. 
“Structural Botany.” Asu Gray. 
“Climbing Plants.” Darwin. 
