2 
x 
modified barren ae whereas it is clear that it is equivalent to 
the involucres of Cenchrus, Pennisetum, and Plagiosetum, and is formed 
by the fusion of an imperfect whorl of dilated bristles, not unlike that 
of Plagiosetum, but very much coarser. The longest of en bristles 
is more or less awnlike and almost free to the base—O. Sta 
1, ligule; 2, neperte with involucre ; 3, involucres; 4, a ee 5, lower 
Fr 
glume 6, upper glu 7, valve of lower floret ; 8, valvule and stamens of the 
me; 9, valve of ene "floret ; 10, valvule of the same; 11, flower. Al enlarged. 
