DIANDRIA.— M0N0GYN1A. *9 



sile, reniform, entire, hairy, villous ; flowers axil- 

 lary, solitary, subsessile. 

 HAB. Sandy soils. Summer. 0. Stems few, terete, vil- 

 lous ;fl. white or pale blue. 



9. LEPTANDRA. Mtirrhineee. 



L. virginica : leaves verticillate, in fours or fives, lan- 

 ceolate, serrate, petiolate. 



HAB. Woods and fertile valleys. July — Aug. If. Stew 

 3 — 4 ft. high ;fl. white, in a long terminal spike. 



10. GRATIOLA. Hedge-hyssop. Scrophularuc. 



J..G. aurea : smooth ; leaves linear-oblong ; half embra- 

 cing the stem, obscurely toothed ; leaves of the calyx 

 equal ; sterile filaments minute. 

 HAB. Wet, sandy places, and in woods. Aug. — Sept. 

 If. Root creeping ; stem 8 — 12 in. ;fl. yellow. 



3. G. virginica : stem pubescent, assurgent, terete; leaves 

 smooth, lanceolate, sparingly dentate-serrate, alter- 

 nate and connate at the base ; leaves of the calyx- 

 equal ; sterile filaments wanting. 

 HAB. Wet meadows. July — Aug. If. 6—8 in., branch- 

 ed at the base ; leaves smooth ; cor. white ; tube yellow. 



\.G t megalocarpa : leaves lanceolate, serrate, pubes- 

 cent ; peduncles opposite, longer than the leaves ; 

 segments of the calyx linear, as long as the globose 

 capsule. 

 HAB. Ditches and pools. July — Aug. If. Cor. pale yel- 

 low ; caps, large. 



11. L1NDERNIA. Scrophulariw. 

 l.L. dilatata: leaves dilated at the base, amplexicaul, 

 remotely toothed ; peduncles longer than the leaves. 

 HAB. Overflowed places. July — Sept. ©. 67cm assur- 

 gent ; pedunc. altern. andoppos., spreading; cor. pah 

 purple. 

 I, L. attenuata: leaves lanceolate and obovate, narrowed 

 at the base ; peduncles shorter than the leaves 

 erect. 

 11AB. Overflowed places. July — Sept. Q. Stem erect o, 

 procumb. ; leaves serrate or dentate ; cor. pale purple. 

 '• 1- monticola : stem slender, dichotomous ; radical 



