VI] CRUCIFER.E AND CAPPARIDACE^ 53 



In some genera (e.g. Cremolobus, Fig. 60) the two 

 halves of the silicule come away from the axis enclosing 

 each its single seed, like mericarps from the carpophore 

 in a Cremocarp, only in comparing with the fruit of 

 umbellifers we must remember it is here superior. 



Some crucifers bear two kinds of fruit on the same 

 plant e.g. achene and silicule in Aethionema, lomentum 

 and silique in Chorispora, and even siliques and silicules 

 in Cardamine, the latter ripening underground. Subter- 

 ranean silicules also occur in Geococcus and Morisia. 



A 



Fig. 59 A. Fig. 59 B. Fig. 60. 



Fig. 59. Aethionema coridifolium. A, winged fruit. B, longitudinal 

 section of winged fruit (Bai). 



Fig. 60. Cremolobus suffruticosus, DC, schizocarp with winged meri- 

 carps (E and P). 



In the Capparidacese the simplest typical fruit is like 

 a silique, but without the longitudinal partition, so that 

 when the valves of the capsule separate they leave the 

 seeds on the margins of the replum, but the latter has no 

 membrane across e.g. Cleome (Fig. 61) but here again 

 each valve may come away like a mericarp, bringing the 

 single seed (the rest being aborted) with it e.g. Wisli- 

 zenia. In Dipterygium (Fig. 62) the fruit is indehiscent, 

 has only one seed, and is winged, like a samaroid achene. 



Next we get a series where the pericarp becomes 

 fleshy and the fruit is therefore Baccate. In Capparis 



