EXPLANATION OF PLATES. 97 



half size; fruiting branch, natural size; fruit, x 4; ache- 

 mum, x 8. 



Plate 23, R. verticittatus, L. Habit, one-sixth size ; 

 root and leaf, half size ; fruiting branch, natural size ; fruit, 

 x4; achenium, x8. 



Plate 24, R. Floridanus, Meisn. Habit, one-sixth size ; 

 leaves, natural size; fruit and achenium, x 8. 



Plate 25, R. altissimus,Wood. Habit, one-sixth size; 

 leaf, half size ; fruiting branch, natural size ; achenium, x8. 



Plate 26, R. salicifolius, Weinm. Habit sketches, one- 

 sixth size; leaf , half size ; fruiting branch, natural size; 

 two fruits and achenium, x8. 



Plate 27, R. Berlandieri, Meisn. Habit, one-sixth size ; 

 leaves, half size; fruiting branch, natural size; fruit and 

 achenium, x8. 



Plate 28, R. conglomeratus, Murr. Young plant, one- 

 sixth size (the branches become much more elongated and 

 spreading); leaf , half size ; fruiting branch, natural size; 

 fruit and achenium, x8. 



Plate 29, R. pulcher, L. Habit of young and old plants, 

 one-sixth size ; leaves, half size ; fruiting branch, natural 

 size; fruit and achenium, x 8. 



Plate 30, 7?. obtusifolius, L. Habit, one-sixth size; 

 leaf, half size ; fruiting branch, natural size ; fruit and ache- 

 nium, x8. 



Plate 31, R. crispus x obtusifolius (R. acutus, L). 

 Habit, one-sixth size ; leaf, half size ; fruiting branch, nat- 

 ural size ; two fruits, x 4. 



Plate 32, R. persicarioides, L. Habit, one-sixth size; 

 leaf, half size ; fruiting branch, natural size ; fruit and ache- 

 nium, x 8. 



Plate 33, R. bucephalophorus, L. Habit, half size; 

 leaves and fruiting branch, natural size; fruit and ache- 

 nium, x8. 



7 



