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male three or four. Among the aquatic 
plants we find not only beauty but mag- 
nificence ; the greater and lefler ty'pha, with 
their yellow downy fpikes, attract the eye of 
the botanift from a confiderable diftance, but 
are not fatisfactory to a novice in the fcience. 
Their Powers, confifting of very minute 
parts, are difficult of inveftigation ; Mr. Cur- 
tis's account of them fomewhat differs from 
that of Linneus, and is to be preferred ; as 
he examined all the parts accurately with a 
microfcope. Thefe plants are of the One- 
houfe clafs, and by Linneus are placed in the 
order three-ftamens ; but as on one filament 
are found one, two, three, or four anthers, it 
feems that they might more properly have 
been arranged in that of Polyandria, or many- 
ftamens. What Linneus has called the ca« 
lyx, from Mr. Curtis's obfervations, does not 
appear to be one, but rather fome hairs 
proceeding from the receptacle, which is co- 
vered by them after the ftamens are fallen 
off. Thefe fpikes of flowers are aments, or 
catkins, and their cylindric form marks the 
eflential character of the genus.. The male 
flowers are numerous, and terminate the 
fulm, which is the term that Linneus gives 
M to 
