56 VA SOU LA R PLAN TS. 



upper lobe the largest. Ovary few seeded. 

 Capsule compressed, emarginate. ©. 2£. 



6. Limosella L. 



Calyx 5-dentate. Limb of the corolla 5-cleft. 

 Stamens didynamous; loculi of anthers conflu- 

 ent; transversely dehiscent. Capsule co-seed- 

 ed, septifragous. 0. 



Tribe in. Gratiolae. 



Upper lip in aestivation covering the lower. 

 Stigma flat, 2-lobed. 



7- Gratiola, L. 



Calyx 5-parted, with 2 bractlets; corolla 

 2-labipte. Stamens 4; 2 fertile, 2—0 sterile. 

 Ovary go ovulate. Capsule loculicidous, at 

 length septifragous. 21 . 



8. Mimulus, L. 



Calyx tubular, angulate, 5-dentate; bractlets 

 0. Corolla 2-labiate. Stamens didynamous; 

 loculi of the anthers, divaricate, at length con- 

 fluent. Capsule co ovulate. 0. 2£. h. 



Tribe IV. Digitaleae. 



Upper lip in aestivation covering the low r er . 

 Stigma minute, not flat. Capsule septicidous. 



9. Pentastemon. L'Her. 



Calyx 5-parted. Limb of the corolla labiate. 

 Stamens didynamous, with a fifth filament ster- 

 ile. 71. 



