120 
teeth. It is also not difficult to locate the fourth bract, which is 
seen to be much smaller than the other three, and in shape like 
the sepals. There is also the absence of that hirsutness charac- 
teristic of all leafy parts of the plant. 
The appearance of a pistillate flower without any monstrous 
developments, is shown at d. Here the regularity of parts is well 
observed. The bracts are of equal size, and are somewhat 
broader and longer than the six equal-sized sepals situated a short 
distance above them. : 
No staminate flowers were found last year; but this spring 
they came to light and were discovered by a student while exam- 
ining specimens of the /Yepatica in class. The stamens are more 
numerous than in perfect flowers. In ordinary blossoms there 
are about thirty stamens, while in the staminate flowers there 
were forty or more. The pollen from these male flowers was 
found, by measurement, to be of the same size (40-45 microm.) 
as that of perfect flowers, and to all appearance the 
same. A staminate flower, natural size, is shown at e¢._ It will 
be observed that the sepals are much longer than the bracts, and 
shut them from view when looking down upon the flower. A 
staminate flower with the sepals rentoved is shown at £ The 
distance between the involucre and the flower is here seen. In 
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