34 LXX. RUBTACEiE (hIERN). 



A, Ovules indefinite ; rarely few, 2 -or more. 



1. Fruit dry, capsular or 2-coccous or rarely dehiscing irregularly at the apex, or 

 fruits confluent into a fleshy s3Ticarpium. 



Flowers arranged in compact or confluent globular heads I. Naucles:^. 

 Flowers solitary or not in compact nor confluent globular heads. 



Seeds winged ) jj Cinchoneje 



Trees or shrubs \ 



Seeds not winged "1 ttt tt 



Herbs or shrubs usually small) III. Hedyotide^.:. 



2. Fruit baccate, indehiscent (except Mussanda lutepla, Del.) ; fruits not confluent 

 into a syncarpium. 



Corolla valvate in aestivation IV. Muss^nde^. 



Corolla imbricated or contorted in aestivation. 



Seeds numerous, small, angular. Corolla-lobes imbri- 

 cated or contorted in aestivation V. Hameije;r. 



Seeds rounded or if angular then not numerous and 



small. Corolla-lobes contorted in aestivation . . VI. Gardbnie.e. 



B. Ovules solitary. 



1. Radicle of the embryo superior. 



Corolla imbricate in aestivation VII. GuettakdejK. 



Corolla contorted in aestiv.ation VIII. Aj,bkrte;k. 



Corolla valvate in aestiA-ation IX. VanglekievK. 



2. Eadicle of the embryo inferior. 



Corolla contorted in aestivation X. IxoREiK. 



Corolla valvate in aestivation. 



Leaves stipulate ; stipules unlike the leaves. 



F'lowers capitate, calyx-tubes confluent .... XI. MoRiNnEJE. 

 Calyx-tubes not confluent, separate. 

 Ovules basilar erect anatropous. 

 Flowers hermaphrodite. 



Fruit indehiscent XII. PsYCHOTRiEiE. 



Fruit dicoccous XIII. P^ederikte. 



Flowers unisexual XIV. Anthospf.rmejb. 



Ovules attached to the septum, amphitropous . XV. SPERMACocafK. 

 Leaves exstipulate, verticillate (or the stipules foliace- 



ous, like the leaves) XVI. Galie^. 



I. Naucleeje. 

 Calyx-tubes confluent. Fruits forming a syncarpium. 



Corolla imbricate in aestivation 1. Saecocephalub. 



Caljrx-tubes contiguous or slightly cohering, not confluent. 

 Fruits capsular not forming a syncarpium. Corolla valvate 

 in aestivation. 

 Bracteoles between the flowers paleaceous. Branches 

 without spines. 



Calyx-limb half cleft 2. Adina. 



Calyx-limb truncate or obscurely toothed .... 3. Mitragyne. 

 Bracteoles wanting. Branches spinous 4. Uncaria. 



II. CiNCHONE.E. 



Corolla valvate in aestivation, funnel-shaped. 



Cymes spicate. Corolla-limb not appendaged .... 5. Hymenodictyon. 



Cymes corymbose. Corolla-limb appendaged .... 6. Corynanthe. 



Corolla contorted in aestivation, salver-shaped .... 7. Ckossopteryx. 



III. Hr.DYOTIDE^. 



Anthers connivent, dehiscing by apical pores. Fruit burst- 

 ing irregularly at the apex S. Argo^temma. 



