532 INDEX. 
Xyris capensis, 276,277; humilis, 277 ; Zygnemacese, filaments of, 435; litera- 
operculata, 73, 80; platycaulis, 277 ; ture of, 439. 
semifuscata, 277. , reproduction of, Alf. W. Bennett 
on, 430: 
Zieria veronica, 75. Zygoceros Balena, 316. 
Zygnema, 430, 436; Bennett’s obs. on, 
431. euius 
END OF THE TWENTIETH VOLUME. 
PRINTED BY TAYLOR AND FRANCIS, RED LION COURT, FLEET STREET. 
