288 SCROPHULARIACE^E. (PIGWORT FAMILY.) 



*-(-(- Stamens 4. Flowers racemed or spiked. 

 4H- Anthers 1-celled. 



15. BUCHNERA. Corolla salver-shaped. Stamens didynamous. Flowers spiked. 



H- -H- Anthers 2-celled. Stamens equal. 



16. SEYMERIA. Corolla bell-shaped, yellow. Stamens included. 



17. MACRANTHERA. Corolla tubular, orange. Stamens long-exserted. 



H- -H- -H- Anthers 2-celled. Stamens didynamous. 



18. OTOPHYLLA. Anthers unequal. Corolla bell-shaped. Upper leaves 2-eared at the base. 



19. DASYSTOMA. Anthers equal, awned at the base. Corolla funnel-shaped, yellow. Leaves 



m&stly pinnatifid. 



20. GERARDIA. Anthers equal, pointed at the base. Corolla bell-shaped, purple. Leaves 



narrow, entire. 



* * Corolla tubular, 2-lipped ; the upper lip arching and enclosing the 4 didynamous stamens. 

 - Anther-cells unequal. 



21. CASTILLEIA. Anther-cells separate. Leaves alternate, the floral ones colored. 



+- 4- Anther-cells equal. 



22. SCHWALBEA. Calyx 10- 12-ribbed, the upper teeth smaller. Capsule oblong, many- 



seeded. Leaves entire, alternate. 



23. PEDICULARIS. Capsule sword-shaped, few-seeded. Leaves pinnatifid. 



24. MELAMPYRUM. Calyx 4-cleft. Capsule flat, 1 - 4-seeded. Upper leaves bristly-toothed 



at the base. 



1. VERBASCUM, L. MULLEIN. 



Calyx 5-parted. Corolla rotate, 5-lobed ; the lobes nearly equal, roundish. 

 Stamens 5, declined, all, or a part of them, bearded. Stigma simple. Capsule 

 globose, many-seeded. Tall biennial herbs. Leaves alternate. Flowers in 



1. V. Thapsus, L. Woolly throughout; stem stout, simple; leaves 

 slightly crenate, rugose ; the lowest large, oblong, petioled, the others broadly 

 decurrent on the stem ; raceme spike-like, dense, cylindrical ; flowers yellow. 

 Old fields and waste ground. Introduced. Stem 2 - 5 high. Lowest leaves 

 1 long. Raceme rigid, 1 - 2 long. 



2. V. Blattaria, L. Stem smooth below, pubescent above, sparingly 

 branched or simple ; leaves smooth, oblong, acute, serrate or pinnately lobed ; 

 the lowest petioled; the upper clasping; racemes elongated, glandular, the 

 flowers scattered; corolla bright or pale yellow; filaments all bearded with 

 purple hairs. Waste ground, chiefly in the upper districts. Introduced. 

 Stem 2 -3 high. 



3. V. Lychnitis, L. Plant mealy-white; stem branching and angled 

 above ; leaves ovate, acute, sessile ; the lowest narrowed into a petiole, greenish 

 above ; flowers in a pyramidal panicle, yellow ; filaments bearded with white 

 hairs. In Carolina, Muhlenberg. Introduced. 



2. SCROPHULARIA, L. FIGWORT. 



Calyx 5-parted. Corolla globose or oblong, 5-cleft ; the 4 upper lobes erect, 

 with the two uppermost longer ; the lowest spreading. Stamens 4, declined ; 

 the fifth sterile and scale-like, placed near the orifice of the tube of the corolla; 



