268 DICOTYLEDONOUS PLANTS. 



HAB. Fields and woods. N". Y; to Car. Aug. Oct. Q.Stem 

 12 feet high, slender, much branched. Flowers large, axilla- 

 ry, purple. 



2. G. tenuifolia Linn. : stem much branched, smooth ; leaves linear, 

 acute at each end, smooth, rough ; peduncles axillary, opposite, long- 

 er than the flowers ; teeth of the calyx, small, acute. G. erccta Walt. 



HAB. Fields and woods. N. Y. to Car. W. to Miss. July- 

 Sept. 0. Stem 610 inches high, much branched. FUnrcr* 

 small, purple.' Differs from the former in its corol and pedun- 

 cle. 



3. G. maritima Rqf. : stem angular ; leaves linear, fleshy, short, 

 rather obtuse ; flowers pedunculate ; upper segments of the corol cili- 

 ate ; calyx truncate, with* minute teeth. G. purpurea var. crassifolia 

 Pwsh. 



HAB. Salt marshes. N. S. July Sept. . Stem 6 12 inches* 

 high. Flowers middle-sized, purple, axillary and terminal. 

 Easily distinguished by its truncate calyx. -, 



3. G. auricvlatfl Mich. : subsimple, scabrous ; leaves ovate, lanceo- 

 late, auhculate at the base, very entire, sessile ; flowers sessile, axil- 

 lary. 



HAB. Rocky fields. Penn. W, to 111. Aug.. >-Stem B 12 

 inches high. Ftowers middle-sized. 



** FUncers yellow. 



5. G. flava Linn : pubescent; stem mostly simple"; leaves lanceo- 

 late-, entire or toothed, the lower opes -notched and pinnatlfid ; flowers 

 axillary, opposite, nearly sessile. 



HAB. Rocky woods. N. Y. to Flor. W. to Miss! Aug. Sept. 

 "il.-Stcm H 3 feet high. Flowers large, yellow. False Foxglove. 



6. G. glauca Eddy : smooth ; stem panicled ; leaves petioled, pm- 

 natifid, paler beneath ; the- upper ones lanceolate; flowers axillary, 

 opposite, on pedicels. G. querc\folia Pursh. 



HAB. Woods. N. Y. to Car. W. to Miss. Aug., Sept. ZT. 

 ~ Stem 3 5 feet high. Flowers large, yellow. Resembles the 

 preceding, but has the stem smooth and more branched, the 

 leaves. petiqjed and pinnatifid, and the flowers on pedicels. 



7. G. pedicularia Linn. : stem much branched, villous ; leaves ob- 

 long, smoothish, pinnatifid ; segments uncinate, serrate ; flowers axil- 

 lary, opposite, on pedicels ; segments of the calyx leafy, notched and 

 toothed. 



HAB. Woods. "Can. to Car. July, Aug. If. Stem 2 3 feet 

 hjgh, much branched. Flowers large, villous on the outside. 

 Liable to much variation. 



Div. IV. RHINANTHEJE. 



17. RHINANTHUS.* Lmn. 

 Calyx inflated, 4-toothed. Corol riqgent ; upper lip com- 



