APPENDIX II. 



Receptacle, the portion of the axis on which is situated the 

 florets in a capitate inflorescence, or on which is situated the 

 parts of the flower in a flower. 



Regular, with all the members symmetrically disposed 

 around the geometric center of the flower, and with either ail 

 the members in a sjngle whorl equal and similar or if dissimi- 

 lar then with one half of the whorl similar to the other half. 



Reniform,' kidney-shaped. 



Repand, with a wavy margin. The sinuses being more 

 shallow than in sinuate. 



Replum, a partition of the ovary which is not- a part of 

 the carpels. 



Retinaculum, an upcurved acute subsequently hardened 

 process from the placenta (possibly a modification^ of the 

 funicle) on which the ovules ax;d seeds are borne in most 

 Acanthacea?. 



Retrorse, directed backwards. 



Retuse, with the ,apex depressed so that there is a sinus at 

 the tip, which is less deep than in emarginate. 



Rhacis, rhacilla, see rachis, rachilla. 



Rhizome, an elongated underground stem with apical 

 growth. 



Rotate, a corolla with a very short tube and a horizon- 

 tally spreading limb. 



Rotund, roundish, not angular. 



Rugose, with numerous minute elevations and depres- 

 sions. 



Ruminate, with the testa of the seed projecting as points 

 and plates into the albumen. 



Runcinate, incised with the lobes directed backwards. 

 Saccate, bulged into a small sac or cavity. 

 Sagittate, arrow-shaped with the basal lobes directed 

 627 



