GRAMINEAE CENTROLEP1DA CEAE 



Gramineae: herbs, rarely woody, with jointed stem and alt. 2- 

 rankecl 1. with split sheath and ligule, and panicle or spike-like 

 infls. of small 5 rarely S 9 naked fls. in spikelets, each begin- 

 ning with i or more empty glumes, then glumes with axillary 

 fls.; A usu. 3, G with i ov., micropyle facing down; stigs. 2, 3, 

 or i ; caryopsis with rich endosp. 



Cyperaceae: herbs with usu. 3-angled stem and 3-ranked 1. with 

 closed sheath; fls. in spikelets or cymes united to large infls., 

 naked, 9 or <? ? ; A usu. 31, G (3 2), styles 32, i-loc. 

 with i basal anatr. ov. ; nut; endosp. 



i . Palmae. 



r. Cyclanthaceae. 



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Araceae : tuberous herbs, sometimes woody, or lianes, with $ or 

 S ? fls. in same spike, often with spathe ; fl. 2 3-merous or 

 reduced to i sta. or cpl.; fr. usu. berry; outer seed-coat fleshy. 



Lemnaceae : free swimming water pi. usu. with no 1. and naked 

 <? 9 fls., <?of i sta., 9 of i cpl. with i 6 basal erect ov.; endosp. 

 thin. 



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Flagellariaceae : pi. sometimes climbing, with long many-veined 1. 



and small, $ or i 9 , 3-merous, reg. fls. in cpd. term, panicles; 



P bractlike, G (3) 3-loc. each with i ov. ; fr. 3-loc. or with 3 i 



stones; endosp. 

 Restionaceae : rush-like xero. or marsh herbs with creeping rhiz. 



and 2-ranked bracts or scale 1. on stem; fls. in spikes in axils of 



bracts, usu. 3 9 reg.; P 32 + 3 2 sepaloid, A 3 2, G (3 i) 



with 3 i styles, 3 i-loc. with i ov. in each; caps, or nut; 



endosp. 

 Centrolepidaceae: usu. marsh pi. with ? or 3 9 fls., naked or with 



! 3 hair-like br. ; A i 2, G (i oo) each with i pend ov. 



