97. 



Index to the Carices. 



381 



Order XCVII. GRAMINE^E. 



Fl. perfect or unisexual, 1, 2 or more seated on a common axis 

 which is contained within an involucre of 2 (or 1) valves (glumes) 

 or rarely none, the whole forming a locusta or spikelet. Each 

 fl. of 1 or 2 scales (pales) of which the outer or lower is simple 

 and usually keeled, the inner with 2 veins or keels. Hypogy- 

 nous scales 2, 3, or none. Stam. hypogynous, 1 6. Anth. ver- 

 satile, notched at both ends. Ovary 1-celled. Styles usually 2, 

 rarely 1 or 3. Embryo on the outside of the albumen and at its 

 base. L. with split sheaths 1 . 



1 Nearly all the genera of this Order are beautifully figured in the 

 Gen. Fl. Germ. Monocotyl. vol. i. Andersson's PI. Scand. fasc. ii. con- " 

 tains a valuable account of this Order. 



