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The Waterulies. 



Measurements of Floral Parts in centimeters. 



B.= Riverton plant. 



H. = Harshberger's plant. t = innermost, 

 (a) = withered. 



I = left. 



right. 



o = outermost. 



Number of Floral Parts. 



Leaf Measurements. 



Source of Data. 



Mexican specimens. 

 at Riverton 



Harshberger coll 

 Pringle coll 



First floating leaves f 

 from brood-bodies, J 

 Riverton, 1901.... 



Submerged leaf of same 



Aerial leaves, River- 

 ton, 1900 



Diam- 

 eter of 

 Petiole. 



cm. 

 0.47 



06 

 06 

 48 

 4 



Length 

 Lamina. 



cm. 



15-6 



17.1 



17 



14.8 



12.6 



16.25 



7.0 



12.75 



13-35 



5.26 



4-6 



3-35 



4-3 



2.0 



n. 15 

 "5 

 11.8 

 12. 1 

 8.9 



Breadth. 



14-3 

 16 



15-3 

 12.8 

 10.8 

 13 



5>4 o 



11.48 

 12.75 



4.6 

 3.8 



2.55 



3-5 

 1.2 



9.9 

 10.2 

 10.2 

 11.6 



7-65 



Depth 



of 

 Sinus. 



cm. 



5-6 



5-7 



5-75 



5-1 



4-5 



3-5 



4-15 



4-5 



2.07 



1.9 



1-3 



1.6 



o 



Length 

 Midrib. 



Length 

 of Prin- 

 cipal 

 Area. 



cm 

 5-1 



6 



Length 

 Radius. 



cm. 



7.0 



7-8 



7-65 



6.4 



5-6 



Pelta. 



cm. 



0-3 



0.32 



0.32 



0-3 



0.3 



0.48 







0.64 



0.8 



Number 



of 

 Veins. 



10 



8 





