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1, Gratiola L. 



Calyx 5-parted, with two bractlets. Corolla 

 2-labiate. Filaments 4; two of them fertile, 

 two sterile (sometimes 0). Ovary oo-ovulate. 

 Capsule loculicidal, at length septifragal. 



1. G. EBRACTEATA Benth. Corolla pale. 

 0. Marin County. Spring. 



2. Mimetanthe Greene. 



Calyx campanulate, not angulate. Capsule 

 dehiscent only by the dorsal suture. 



1. M. PILOSA Greene. Corolla yellow. 0. 

 Dry river beds. Summer. The whole plant 

 has a nauseous smell, resembling that of Datura 

 stramonium. 



3. Mimulus L. MONKEY-FLOWER. 



Calyx angular; angles carinate. Placentae of 

 the capsule remain united and only separate at 

 last near the apex. Valves of the capsule mem- 

 branaceous. 



1. M. INCONSPICUUS Gray. Glabrous; leaves 

 ovate, entire, 3-5 nerved; all cauline leaves ses- 

 sile; calyx ventricose, its teeth about equal and 

 very short; corolla yellow. 0. Livermore. 

 Summer. 



2. M. NASUTUS Greene. Glabrous; stem 4- 

 augular; leaves dentate, 3-5 nerved, mostly 

 petioled; calyx ventricose, in fruit conspicu- 

 ously pointed by the projecting upper tooth; 



