350 RJr. Don's Description of a new Genus belonging to 



the form of its corolla, essentially distinguish it from both these 

 o-enera. Both Mauvaixtia and Antirrhiniun have their seeds 

 covered by a thick spongy testa, which is very much wrinkled, 

 and resembles in a remarkable degree the testa of the curious 

 cruciferous genus Parrija of Mr. Brown. This character is also 

 met with in all those genera which are intimately allied to A7i- 

 tirrhinian; and it appears to me to be of suthcicnt importance 

 to warrant their being regarded as a separate section, which may 

 be denominated Aiitin/iinece. Chelone, on account of its tlat 

 seeds and foliaceous cotyledons, will constitute another section 

 of the order, forming the link of affinity between it and Bignoni- 

 acae, from which it principally ditiers in the direction of its 

 seeds, and in the presence of albumen. Sesamum corresponds 

 with the latter family in the absence of albumen ; but in the 

 form and direction of its seeds it is- closely allied to Chelone, 

 from which it is however essentially distinguished in the struc- 

 ture of its capsule, the absence of albumen, and by having the 

 cells of its anthers parallel. It may therefore be considered as 

 forming, together with Martynia and Craniolaria, a distinct na- 

 tural group, as has already been suggested by Mr, Brown. 



In Scrophularia the upper lip of the corolla is so much more 

 developed than the lower one as to give the flower the appear- 

 ance of being resupinate. The anthers of this genus diH'er very 

 materially in structure from those of every other genus of the 

 order ; they are unilocular, and open by means of a transverse 

 fissure, and the cell is attached along its whole length to the 

 summit of the filament, in which particular it recedes from the 

 usual form of the one-lobed anther. 



A number of other sections equally distinct might be indi- 

 cated, the adoption of which would greatly facilitate a know- 

 ledge of the genera of this extensive order. In a practical 

 point of view, the advantages arising from the division of 



extensive 



