30() 



PROCEEDIXGS OF THE ACADEMY OF 



[April, 



tracting volumes, its volume. The following table (I) presents 

 the results of these determinations: 



I. Fi'esJi Fruits of May apple {Podophyllum peltaUnn). 



A study of this table shows that the fize of the fruits and the 

 number of the seeds varies within wide limits. The largest fruit 

 with 52 seeds (No. 2) weighed 35.50 grams and displaced 36 c.c. 

 of water. The smallest fruit (No. 19) with 2 seeds weighed 25.20 

 grams less, and displaced 10 c.c. of water, a difference of 26 c.c. 

 This difference is due, without doubt, to imperfect fertilization of 

 the ovules of the nineteenth plant. However, if we compare 

 fruits No. 3 and No. 11, having the same number of good seeds, 

 Ave find a very considerable difference; or if we institute a com- 

 parison between fruits No. 5 and No. 17, we find the variations 

 to be even more striking. The table also shows that the weight of 

 the fruit largely depends on the amount of the pulpy pericarp. 



Sanguinaria canadensis (Bloodroot). 



There arise from the rootstock of this plant two lanceolate, 

 membranous scale leaves, and a single palmate, glaucous foliage 

 leaf variously lobed, sometimes only undulate. A reference to the 

 table will show that the thirty-three leaves taken for comparison 



