422 



POLEMONIACE^a. JACOB'S LADDER TRIB^. 



unknown. None of the species possess remarkable pro- 

 perties, but several are favourite garden flowers, as 

 Phlox, Gilia, Polemonium, and Coboea. 



1. POLEMONIUM (Jacob's Ladder). Corolla wheel- 

 shaped, with erect lobes ; stamens bearded at the base ; 

 cells of the capsule many-seeded. (Name, the Greek 

 name of the plant.) 



p. ccERtfLEUM (Greek Valerian, Blue Jacob's Ladder). 



1. POLEMONIUM (Greek Valerian). 

 1. P. cwruleum (Greek Valerian, Blue Jacob's Ladder). 

 -The only British species, occasionally found in woods 



