PJLATE I. 



THE COMMON PEA. 



Pisum vulgaris; Leguminous family, Dicotyledon, 



a, Stem. 



b 6, Stipula. 



c c, Petiole, or common leaf stalk. 



d rf, Folioles of the compound leaf. 



e e, Apex of the leaf. 



//, Tendril, terminating the petiole of the leaf. 



g g, Peduncle or flower stalk, springing from- the 

 axilla, and dividing it into two pedicels. 



i i, Pedicels. 



k /c, Axilla of the leaf. 



Z, The flower. 



m w, The calyx. 



n n, The corolla. 



0, The standard or superior petal. 



p p, The two wings or lateral petals. 



<7, The carina, or two lower petals soldered to- 

 gether, seen interiorly. 



r, The torus, or base of the flower. 



s. The stamens, nine of which are half soldered 

 together by their filaments. 



s 1 , The tenth stamen free. 



1 f, The anthers. 



t; u to, The pistil t>, the ovary; K, the style; w, the 

 stigma, bearded. 



x, The fruit or pod, of which a portion has been 

 removed in order to show the seeds. 



y y, The seeds attached to the upper suture of 

 the pericarp. 



