NYSSACEAE-CORNACEAE xxxix 



11. Nyssaceae : shrubs with alt. exstip. 1. and small or <? ? fls. usu. 



with hollow axis, the 3 in racemes, the _? sol., K 5 or more, C 

 usu. 5, valv., or o, A twice as many, G usu. r-loc. rarely 6 

 lo-loc. with i ov. in each; drupe; endosp. 



12. Alangiaceae: shrubs with alt. 1. and umbels of 5 fls.; K (410), 



C 4 10, narrow, valv., A 4 10 or ^ 4 times as many, G i 

 2-loc. with i pend. ov. in each; fr. drupaceous with i seed; 

 endosp. 



13. Combretaceae : woody, often climbing, with opp. entire exstip. 1. 



and racemes of g or l $ reg. fls.; K^C, 43, rarely 6 8 (C may 

 be o), A 4 5 8 10, rarely oo , G i-loc. with i 6 pend. ov. ; 

 fr. leathery or drupaceous, often winged ; no endosp. 



14. Myrtaceae : woody with opp. or alt. entire exstip^ 1. and $ reg. fls.; 



K, C usu. 4 5, A oo sometimes in bundles, G (i 5 oo )-loc., 

 each with 8 i ov. ; style i ; fr. various ; no endosp. 



15. Melastomaceae : herbs or woody pi. with opp. or whorled exstip. 



1. with often 3 9 equal nerves, and showy 5 reg. 3 oo -merous 

 fls. with hollow axis; K = C, A twice as many, anthers usu. 

 opening by pores, connective usu. with appendages, (G) usu. = K, 

 free or united to axis, i style; seeds oo in caps, or berry; no 

 endosp. 



16. Onagraceae : usu. herbs with opp. or alt. exstip. 1. and axillary or 



racemed usu. reg. fls. with tubular axis ; K ^ 4, rarely more, 

 C 2 4 or more or o, A usu. 4 8, G usu. (4), each with i ooov.; 

 i style ; caps., nut, or berry ; endosp. little or o. 



17. Haloragidaceae : herbs often of marsh or water, with inconspic. 



reg. 4 i-merous $ or i ? fls.; C often o, A twice or less, G (4), 

 rarely i ; fr. nut- or drupe-like; endosp. 



18. Hippuridaceae: water pi. with whorled 1. and inconspic. apet. fls., 



G i with i style and i pend. ov. 



19. Cynomoriaceae : paras, with rhiz. and $ or <t ? fls. ; <J with i epig. 



sta., ? with i pend. ov. 



30 



i. Araliaceae: woody pi., rarely herbs, with usu. alt. often much 

 divided 1., commonly slip., and oil passages, and usu. 5 (3 oo )- 

 merous fls. in heads, umbels,__or spikes, often in cpd. infls. ; K 

 sometimes indistinct, A = C, G (oo i) ; fr. berry- or drupe-like 

 with oo i stones; endosp. 



i. Umbelliferae : herbs with tap root or rhiz., hollow stem, and alt. 

 usu. much divided, sheathing exstip. 1., and usu. $ reg. small 5- 

 merous Js. in umbels, simple or cpd.; K often indistinguishable, 

 A=K, G (2) with two styles on swollen style base; schizocarp, 

 the mericarps on a carpophore, each usu. with 5 ribs, often with 

 vittae between ; oily endosp. 



3. Cornaceae: trees or shrubs with opp. or alt. usu. entire exstip. 1. 

 and umbels, panicles or heads of small, sometimes <? ? , jreg. 4 

 5 oo -merous fls.; A= or i 4 times as many as C, G (4 i) 

 with epig. disc and usu. i ov. each ; fr. i 4-loc. with i 4 seeds. 



