BUTTERCUP FAMILY 



tripinnatifid leaves, finely cut into linear segments, and scarlet 

 petals, black at their bases, flowering from May to September, 

 occurs as a weed in cornfields, but is not a native. 



5. Myosurus (Mouse-tail). — A small annual herb ; leaves 



MYOSORUS MINIMUS {MoUSC-tatP). 



radical, linear ; inflorescence several i -flowered scapes ; sepals 5, 

 spurred ;/^/^/^ 5, tubular; i'/aw^/^j' few; ^r^;^^/^ numerous, arranged 

 spirally on an elongated floral receptacle, i-ovuled ; fruit an etaerio 

 of achenes, without awns. (Name from the Greek juuos oura^ 

 mouse's tail.") 



