190 



INTRODUCTION TO PLANT GEOGRAPHY [CHAP. 



Fig. 50. — Map showing range of Drooping Ladies'-tresses {Spiranthes roman- 



ziffiana) (North Atlantic, etc., distribution). (After Fernald, emended according 



to directions given by E. Hulten.) 



Fig. 51. — Map showing range of Skunk-cabbage {Symplocorptis foetidus) (North 

 Pacific distribution). (After Fernald.) 



Fic. 52. — Map showing North-South American distribution of Pitcher-plant 

 family (Sarraceniaceae). (After Hutchinson, emended.) 



