228 DIDYNAMIA.— GYMNOSPERMIA. 



HAB. Pastures, &c May— July. U. Stem 12— 

 18 in. high ; ji. large ; plant acrid. 

 36. R. marilandicus : stem erect, somewhat branched, 

 soft-hairy ; leaves smoothish, ternate ; leaflets 3- 

 lobed ; lobes oblong, acute, incisely-dentate ; ca- 

 lyx smooth, spreading, shorter than the petal?. 

 HAB. Woods. May — July. 11 . Pericarps com- 

 pres., acum., with a straight style. 

 17. R. repens : leaves ternate; leaflets cuneate, 3- 

 lobed, incisely-dentate ; middle one petiolate ; 

 main stems prostrate ; flowering ones erect ; pe- 

 duncles sulcate ; calyx appressed. 

 HAB. Wet meadows. June — Sept. H . Stem 

 1 — 2 ft. high ; fl. middle sized. 



367. BRASENIA. Water-target. Podophyllaceu. 



B. Hydropeltis. 



HAB. Ponds. July — Aug. 1}. . Floating ; leaves 



oval, centrally peltate, very entire ; purp. and gelat. 



beneath ; ji. sol., purp., on long pedunc. 



3G8. NELUMBIUM. Water-chinquepin. Nympheaceaz. 



N. luteum : corolla many-petalled ; anthers produced 

 into a linear appendage at the extremity ; leaves 

 peltate, orbicular, very entire. 



HAB. In lakes. July. U . Petioles and pedunc. 

 scab. ; ji. very large, yellow. 



DIDYNAMIA. 



GYMNOSPERMIA. 



* Calyx mostly 5-cleft, subregular. 



369. TEUCR1UM. Upper lip of the Cor. wanting, but 



a fissure in its place, through which the stamens 

 • are exserted. 



370. MENTHA. Cor. subregular, 4-lobed ; the broader 



segment emarginate. Stam. erect, distant. 



371. I SAN THUS. Cal. subcampanulale. Cor. 5- 



parted ; tube straight and narrow : segments of 



