AMONG THE WILD FLOWERS. 145 
branches springing from the joints; but the 
linear, entire leaves of Hippuris, in crowded 
whorls over nearly the whole stem, with the 
sessile ovary, or germen, and single stamen 
conspicuous for its redness, at once distinguish 
it. It is not common, but the writer once saw 
an extensive bed of it rising from the quiet 
intercepted water of a stream in Bucks. 
The only other plants of this Order are those 
of the genus Myriophyllum, Water Milfoil, 
handsome plants, but entirely submerged, ex- 
cept when the flowering spike rises above the 
water. The leaves are numerous, in whorls, 
and divided into se¢aceous, bristle-like, segments, 
and there are in MW. verticrllatum, pectinate, 
comb-like, bracts. The flowers are moncecious ; 
in the male flowers are 4 petals; the petals in 
the female flowers are very minute. The other 
species are MZ. sprcatum and M. alterniflorum, 
with the sterile flowers alternate, the fertile 
ones about 3 together. These two species are 
more or less common; JV. vertzczllatum is rare. 
