iv MO NO COTS. GLUMIFLORAEFARINOSAE 

 A; a; y; b; B; a 



y. Fls. U3U. naked. Number of sta. rarely indefinite. 



4. GLUM I FLORAE. Usu. herbs, with naked fls. (rarely with tri- 

 chome-like or true P) covered by bracts (glumes). G i-loc. with 

 I ov. 



b. Fls. rarely naked, and then usu. by reduction, and accompanied by 

 spathes of bracts ; A and G commonly definite, but also frequently 

 oo sta. and > 3 cpls. 



5. PRINCIPES. Tree-like or woody pi., sometimes climbing, with 



fan or feather 1., and reg. usu. <? ? fls. in spikes (usu. com- 

 pound) or spike-like racemes, usu. in spathe ; P 3 + 3, A 3 + 3, 

 or 3, 9, or oc , G 3 or (3), usu. with i ov. each ; berry or drupe; 

 endosp. rich. 



6. SYNANTHAE. Often palm-like pi., climbers, or large herbs 



with 3 ? fls. alternating over surface of spike, 3 naked or with 

 thick short P and 6 oo sta. ; ? naked or with 4 fleshy scaly P 

 and long thread-like std. in front of each, G (2) or (4) with 2 or 

 4 plac. and oo ov.; the i-loc. ovaries sunk in spike and united; 

 multiple fr. with oo seeds; endosp. 



7. SPATHIFLORAE. Herbs, or woody, sometimes climbing, rarely 



forming erect stem, usu. sympodial; fls. cyclic, haplo- or homo- 

 chlam. or naked by abortion, 3 2-merous, $ or 3 ? often reduced 

 to i sta. or cpl., in simple spikes (spadix), enclosed in bract 

 (spathe). 



B. Fls. typically 5-cyclic, whorls typically iso-, usu. 3-merous, rarely 

 more or 2-merous (Orders 8 n). 



a. Fls. homo- to hetero-chlam., rarely naked; P still often bract-like ; 

 hypogyny and actinomorphy the rule (Orders 8, 9). 



8. FARINOSAE. Usu. herbs, rarely with stout stem; fls. cyclic, 



homo- or hetero-chlam, 3 2-merous, usu. P3 + 3, A3 + 3, G (3), 

 one whorl of A sometimes wanting, or all reduced to i ; ov. usu. 

 orthotr. ; endosp. mealy. 



1. Flagellariineae : P homochlam. , bracteoid, hypog. ; ov. 



anatr. (fain. i). 



2. Enantioblastae : P various, hypog.; ov. orthotr. (fams. 



2-8). 



