scrophulariace^e. (figwort family.; 335 



lanceolate acute teeth nearly as long as the tube; corolla larger than in No. 1. — 

 Damp grounds, Illinois, Wisconsin, and westward. 



* * Peduncles long and filiform, commonly exceeding the leaves : stems diffusely 

 branched, slender (8' - 20' high) : corolla light purple, 5" - 7" long. 



4. G. tenuif61ia, Vahl. (Slender G.) Leaves narrowly linear, acute, 

 the floral ones mostly like the others ; calyx-teeth very short, acute ; pod globular, 

 not exceeding the calyx. — Dry woods : common. 



5. G. setacea, Walt. Leaves bristle-shaped, as are the branchlets, or the 

 lower linear; pod ovate, mostly longer than the calyx, which has short setaceous teeth. 

 (G. Skinneriana, Wood.) — Dry grounds, Penn. to Wisconsin, and southward. 



§ 2. DASYSTOMA, Raf. Calyx 5-clefi, the lobes ojlen toothed: corolla yellow; 

 the tube elongated, woolly inside, as well as the anthers and filaments : anthers all 

 alike, scarcely included, the cells awn-pointed at the base: leaves rather large, all 

 of them or only the lower pinnatifid or toothed. (Perennials.) 



6. G. flava, L. partly. (Downy False Foxglove.) Pubescent with a 

 fine close down ; stem (3° -4° high) mostly simple; leaves ovate-lanceolate or ob- 

 long, obtuse, entire, or the tower usually sinuate-toothed or pinnatifid ; peduncles very 

 short; calyx-lobes oblong, obtuse, rather shorter than the tube. — Open woods, 

 especially in the Middle States. — Corolla 1^' long. 



7. G. quereifdlia, Pursh. (Smooth False Foxglove.) Smooth and 

 glaucous (3° - 6° high), usually branching ; lower leaves commonly twice-pinnatifid ; 

 the upper oblong -lanceolate, pinnatifid or entire ; peduncles nearly as long as the calyx, 

 the lance-linear acute lobes of which are as long as the at length inflated tube. 



— Rich woods, especially southward. — Corolla 2' long. 



8. G. integrifdlia, Gray. Smooth, not glaucous; stem (1° - 2° high) mostly 

 simple; leaves lanceolate, acute, entire, or the lowest obscurely toothed; peduncles 

 shorter than the calyx. (Dasystoma quercifolia, var. ? integrifolia, Benth.) — Woods 

 and barrens, Pennsylvania to Illinois, and southward along the mountains. — 

 Corolla 1 ' long. 



-9. G. grandifldra, Benth. Minutely downy; stem much branched (3°- 

 4° high) ; leaves ovate-lanceolate, coarsely toothed or cut, the lower pinnatifid; pedun- 

 cles rather shorter than the calyx; corolla (2' long) 4 times the length of the 

 broadly lanceolate entire or toothed calyx-lobes. (Dasystoma Drummondii, 

 Benth.) — Oak openings, Wisconsin (Lapham), Illinois (Vasey) and southward. 



— Intermediate between G. flava and the next. 



10. G. pedicularia, L. Smoothish or pubescent, much branched (2°- 

 3° high, very leafy) ; leaves ovate-lanceolate, pinnatifid. and the lobes cut and toothed ; 

 -peduncles longer than the hairy mostly serrate calyx-lobes. — Dry copses : common. 



§ 3. OTOPHYLLA, Benth. Calyx deeply b-cleft, the lobes unequal: corolla pur- 

 ple (rarely white), sparingly hairy inside, as well as the very unequal stamens r 

 anthers pointless, those of the shorter pair much smaller. (Annuals?) 



11. G. auriculata, Michx. Rough-hairy; stem erect, nearly simple ( 9'- 

 20' high) ; leaves lanceolate or ovate-lanceolate, sessile, the lower entire, the 

 others with an oblong-lanceolate lobe on each side at the base ; flowers nearly 

 sessile in the axils (1' long). — Low grounds, Penn. to Michigan, Illinois, and 

 southward. 



