114 



ACADEMIC BOTANT. 



Family (Fig. 162). This invariable character gives the name Cru- 

 ciferx — Cross-beareiB — to the Order. 

 247. Papilionaceous flowers are so 

 called because they resemble a but- 

 terfly (L. papilio). They charac- 

 terize the main divisions of the Pea 

 Family (Fig. 163). Other resem- 

 blances, however, give the parts of 

 the corolla their botanical names. 

 The large upper petal (c) is the Vex- 

 illum (L. baimer, standard); the 

 two side petals, next to this, are the 

 Aloe (h. wings) ; the two smallest 

 and middle petals, partly united and 

 curved [d) form the Carina (L. 

 keel), which encloses the pistil and 



Fig. 159. — o, Broom-rape {Orohanche 

 rubra) ; &, base of stem ; c, corolla laid 

 open ; d, middle lobe of lower lip, mag., 

 showing fringe of glandular hairs ; e, fr. 



Fia. 160. — Germander, Wood-sage 

 {Tettcrium Bcorodonia) i a, corolla; &, 

 calyx, with pistil. 



Fig. 161.— Snap-dragon {Antirrhinum 

 nu^iu) ; separate fr. 



Stamens. Instead of a butterfly, then, we have a royal barge, in 



