m DIANDRIA.— MONOGYNIA. 



base. Cor. irregular, bilabiate ; upper lip emargi 

 nate ; the lower 3-cleft. Anth. 1—2 on each fila- 

 ment. Caps, attenuated, 2-celled, 2-valved ; dis- 

 sepiment growing from the centre of each valve. 

 15. UTRICULARIA. Cal. 2-leaved, equal. Cor. per- 

 sonate or ringent ; upper lip erect ; lower lip spur- 

 red at the base ; palate subcordate. Fil. incurved . 

 bearing the anthers within the apex. Slig. 2-lipped, 

 Caps. 1 -celled. 



t t t Seeds 4 j naked. Labiate. 



(6. LYCOPUS. Cal. tubular, 5-cleft, or 5-toothed. 

 Cor. tubular, 4-cleft, nearly equal ; upper division 

 broader and emarginate. Stam. distant. Seeds 4, 

 retuse. 



17. CUNILA. Cal. cylindrical or tubular, 5-toothed. 



10-striate. Cor. ringent ; upper lip short, flat. 

 Fertile stam. and style much exserted ; sterile stam 

 very short. 



18. HEDEOMA. Cal. 2-lipped, gibbous at the base : 



upper lip 3-toothed ; teeth lanceolate ; lower lip of 

 2 subulate teeth. Cor. ringent. Stam. 2 fertile, 

 as long as the corolla ; 2 sterile, short. 

 1.9. MONARDA. Cal. 5-toothed, tubular. Cor. rin- 

 gent ; upper lip linear, involving the filaments : 

 lower lip reflexed, 3-lobed. 



20. SALVIA. Cal. subcampanulate, bilabiate ; upper 



lip 2 — 3-toothed ; lower lip bifid. Cor. ringent. 

 Fil. transversely affixed to a foot-stalk. 



21. COLLINSONIA. Cal. bilabiate; upper lip 3- 



toothed. Cor. unequal, somewhat campanula^, 

 unequally 5-lobed ; lower lobe divided into many 

 capillary segments. Seeds 4 ; three of them gene- 

 rally abortive. 



* * Flowers superior. 



22. CIRCiEA. Cal. 2-leaved, superior. Cor. 2-petal 



led. Caps. 2-celled, not opening ; cells 2-seeded. 



* * * Flowers incomplete. 



23. LEMNA. Cal. 1 -leaved, entire. Cor. 0. Fruit 



an utricle. Seed 1, lying horizontally, and affixed 

 by its lower side.. 



