636 



POLEMONIACE^. 



[Perigynous Exogens. 



ance of which either Borageworts, Gentianworts, Dogbanes, or Figworts form a part, 

 and that in reahty its most immediate affinities are with Bindweeds on the one hand, 

 and Hydrophyls on the other. 



Very abundant m both North and South America, in temperate latitudes, particularly 

 on the north-west side. It is stated by Richardson, that the most northern Umit in 

 North America is 54**. — Edin. Phil. Journ. 12. 209. In Europe and Asia they are much 

 more uncommon. They are unknown in tropical covmtries. 



The Greek Valerian, Polemonium cseruleum, is a mucilaginous, nauseously bitter plant. 

 In Siberia, poultices are prepared from its leaves, and thought serviceable in syphiUtic 

 sores. The Russians fancy that a decoction of it is useful in hydrophobia. 



GENERA. 



Caldasia, Willd. 



Bonplaiidia, Cav. 

 Phlox, Linn. 



? Dupratia, Raf. 

 Collomia, Nutt. 

 Gilia, Ruiz et Pav. 



Collomioides, Endl. 



HUgelia, Benth. 



Welwitschia, Reichnb. 



Curtoisia, Rchb. 

 Linanthus, Benth. 

 Leptosiphon, Benth. 



Leptodactylon, Hook. 

 Dianthoides, Endl. 



Fenzlia, Benth. 



Rossmcesllera, Rchb. 



Dactylophyllum, Benth. 

 Ipomopsis, L. C. Rich. 



Ipomeria, Nutt. 



Brickelia, Raf. 

 Navarretia, Ruiz et Pav. 



^gochloa, Benth. 

 Polemonium, Tournef. 

 Hoitzia, Juss. 



Numbers. Gen. 17. Sp. 104. 



Lceselia, Linn. 



Royena, Houst. 

 Schizocodon, Zucc. 

 Cantua, Juss. 



Periphragmos, R. et P. 

 ? Bronnia, H. B. K. 

 Cobsea, Cav. 

 ? Cyananth us, TF ail. 



Position. — Convolvulaceae. 



Hydrophylla cece. 

 -PoLEMONiACE^. — SoUuiacese. 

 Gentianacea. 



