EXPLAXATIOX OF PLATE I. 



CYPERUS. — (1) Small plant of C. diandrus ; (2) a spikelet magnified ; (3) a 

 piece of the rhachis with one scale enclosing its flower; (4) a separate 

 flower more magnified. — (5) C. erjthrorhizos, a spikelet magnified ; the 

 loAver scales and flowers have fallen, showing the small internal scales of 

 the section Papyrus, formed of the winged margins of the joints of the 

 rhachis detached ; (6) a separate one, more enlarged ; (7) a flower; (8) an 

 achene, cut iu two. — (9) C. dentatus, a piece of '•'le rhachis of a spike 

 with the lower part of one scale, showing how it is decurrent on the joint 

 beneath (cut across) to form scale-like Avings. 



DULICHIUM. — (1) Upper part of a plant of 1). spathaceum ; (2) part of a 

 spikelet somewhat enlarged ; (3) piece of rhachis, and one scale decurrent 

 on the joint beneath ; (4) magnified flower. 



KYLLINGA. — (1) Plant of K. pumila; (2) one-flowered spikelet on a 

 piece of the rhachis, enlarged; (3) the same, more enlarged and open, 

 (4) achene ; and (5 j section of same magnified. 



