24 HEREDITY, AND THE ORIGIN OF SPECIES. 
plant might show discontinuous variation in almost any di- 
rection, but this departure of course does not exceed an 
amplitude determined by the morphological possibilities. 
With all of these features taken into consideration how- 
ever, it is to be seen that it might be possible for any plant 
in a mutable condition to give rise to dozens, or perhaps 
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3126 5/6luls}| jila2laliz}a 34 
2|27 5/u}7\olels I 87 
1]28 4]10| 8/16] 5/9 58 
0 |29 2 11/19/10] 3/6 58 
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3 |32 1| 8117/20) 817 1 68 
4 |83 ijelol7ié , 37 
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9 |38 . 2| fale} | | | Is 
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ez 
Correllation Table of Length and Width of Leaf in O. rubri- 
nervis. p= 0.6604 + o.01I9. 
scores of types simultaneously, while on the other hand 
it may originate but one aberrant form at a time. La- 
marck’s evening-primrose is producing a dozen, and the 
common species but one or possibly two, while the great- 
flowered species is throwing off three or four, as far as 
