258 



KEY AND FLORA 



Three-ranked, with three vertical 



rows on a stem or axis. 

 Throat, the top of 



the tubular part 



of a sympetalous 



corolla. 

 Truncate, appearing 



as if cut squarely 



off, as the leaves 



of the tulip tree. 

 Tubercled, covered 



v^ i t h warty 



growths. 

 Tubercular, having 

 like 



Two-lipped 



Utricle 



tubercles, or 

 a tubercle. 



Two-lipped, having 

 the limb of the 

 calyx or corolla 

 divided into two 

 lip-like portions, 

 as in the LabiatcE. 



Two -ranked, with 

 two vertical rows 

 on a stem or axis. 



Unisexual, having in each flower 

 only stamens or only pistils, not 

 both. 



Utricle, a small bladdery ovary 

 wall. 



Versatile, turning freely on its 

 support, as an anther on its 

 filament. 



Whorled, arranged in a circle 

 around an axis, as the leaves of 

 some lilies. 



Wings, the side petals of a papilio- 

 naceous flower. 



Zygomorphic 



Zygomorphic, having bilateral sym- 

 metry, as the corollas of many 

 Legiuninosoe. 



