(52) 



b. Ovary 2 -celled. 



1. Cordylantlms.— Calyx spatliaceons. Cells 

 of anthers distant and of different shape 

 and insertion. Lips of corolla short, 

 upper lip laterally compressed. 



2. Orthocarpus. — Calyx spathaceous, cleft 

 vertically. Cells of anthers distant 

 and of different shape and insertion. 

 Corolla lips personate, but upper lip the 

 smaller. 



3. Castilleia. — Calyx spathaceous, cleft ver- 

 tically. Cells of anthers distant and 

 of different shape and insertion. Co- 

 rolla ringent, the upper lip the larger. 



4. Mimulus. — Stigma dilated, petaloid. 

 Calyx angular, angles carinate. Placen- 

 idd of the capsule remain united and 

 only separate at last near the apex. 

 Valves of the capsule membranaceous. 



5. Mimetanthe. — Stigma dilated, petaloid. 



Calyx campanulate, not angulate. Cap- 

 sule dehiscent only by the dorsal suture. 



6. Diplacus. — Stigma dilated, petaloid. 

 Calyx angular; angles carinate. Placen- 

 tas of the capsule meeting, but in dehis- 

 cence separating their whole length. 

 Valves of the capsule coriaceous. Tube 

 of the corolla funnel-shaped. 



