PLATE 80 



Nicotiana Tabacum var. virginica, U. C. B. G. 78/05. 



Line drawings of morphological details of leaf and flower of virginica. Con- 

 trast the normal flowers and auricled leaves with the corresponding details of 

 calycina, shown in plate 79. Leaves X V^ ; flowers and capsules natural size. 



[572] 



