178 THE PLANT WORLD 



the species allied to Antennaria alpina and A. dioica occurring in north- 

 ern and western North America. He enumerates 35 species and 7 sub- 

 species, of which number 4 are described as new. 



The genus Nelumbo exhibits such a variety of peculiar and seem- 

 ingly inconsistent characters, that its systematic position has been 

 much in dispute. In anatomy the plant seems to conform more nearly 

 to the type of the monocotyledons, while on the other hand the large 

 peltate leaves with their reticulate venation are perhaps more sugges- 

 tive of the dicotyledons. The flower might easily belong to one of 

 either class. With the view of ascertaining the bearing of the develop- 

 ment of the embryo on the question of systematic position, H. L. Lyon 

 has recently studied (Minnesota Botanical Studies) the fruit. He con- 

 cludes that both in its anatomy and embryology it conforms to the t} pe 

 of the monocotyledons, and should be classified among them in the 

 series Helobiae. 



