439 



Plate XXVI.-NigcrianYams. 



S 



.s 

 6 



< 



H 





^ 





-^^ 



W.2 

 tip 



o 



<I o 

 <1 



PH 



kH 



O 



Upper Eow, 



3 



10 



I— I 



pq 

 O 



W 



11 



o 



12 



Middle Eow, all the White Guinea Yam. 



O 

 O 



t3 



PLH 



o 



<1 



I— I 

 O 



o 

 !z 



<i 

 M 



o 



pq 



I— I 



< 





16 



17 



18 



19 



20 



21 



22 



23 



24 



Lower Eow, all the White Guinea Yam. 



