74 KEY TO THE SPECIES 



10. Pedicularis. Upper lip long and arched, beak (if any) short ; calyx cleft 

 on the lower side. 



11. Elephantella. Upper lip strongly arched and prolonged into a long 

 slender upturned beak, calyx 5-toothed. 



1. VERBASCUM (Mullein) 



Tall herbs with alternate leaves (those of the stem sessile or decurrent), large 

 terminal spikes of flowers, 5-parted calyx, wheel-shaped 5-lobed corolla, 6 stamens 

 with woolly filaments, style flattened at tip, and a globular pod. 



] . Verbascum Thapsus L. (Common Mullein). Densely woolly throughout ; 

 stem tall and stout, simple, winged by the decurrent bases of oblong leaves, flowers 

 yellow (rarely white) in a prolonged and very dense cylindrical spike. Fields and 

 roadsides. From Europe. (See Plant Relations, p. 44, Fig. 36.) 



2. SYNTHYRIS (Synthyris) 



Low herbs, with leaves mostly radical and the stems bracteate-scapes, flowers 

 spicate, and fruit a compressed emarginate capsule. 



1. Synthyris Wyomingensis (Aven Nelson) Heller (Wyoming Synthtris). 

 Puberulent, 1-3 dm. high ; stems 1 or more from the crown of the short rootstock ; 

 radical leaves petioled, ovate to oblong, crenate-dentate, rounded or sub-cordate 

 at base : stem-leaves small and sessile ; calyx cleft to the base on the outer side, 

 into 3 or 3 lobes on the inner; corolla wanting; stamens twice as long as the calyx; 

 capsule puberulent, protruding from the cleft side of the calyx. Frequent ; moist 

 valleys and slopes. 



2. Synthyris alpina Gray (Alpine Synthyris). Nearly glabrous, except for 

 the woolly spike, 5-15 cm. high ; leaves oval or sub-cordate, crenate-dentate, on a 

 petiole generally longer than the blade ; no stem-leaves ; bracts and lanceolate 

 sepals woolly on the margins ; corolla purple, its broad upper Up twice the length 

 of the calyx, the 3-3-parted lower one small and included. Frequent in the higher 

 mountains. 



3. VERONICA (Speedwell) 



Herbs with opposite alternate leaves, blue or white flowers, 4-parted calyx, 

 wheel-shaped corolla with 4-parted border, 8 protruding stamens, and a flattened 

 pod obtuse or notched at apex. 



* Leaves opposite ; flowers in axillary racemes, pale blue. 



1. Veronica Americana Schwein (American Brooklime). Smooth, decum- 

 bent at base, then erect, 2-3 dm. high ; leaves mostly petioled, ovate or oblong, 

 serrate, truncate or slightly heart-shaped at base ; pod inflated, round. Brooks 

 and ditches. 



* * Leaves opposite ; flowers in a terminal raceme. 



8. Teronica serpyllifolia L. (Thyme-leaved Speedwell). Much branched 

 at the creeping base, nearly smooth, branches ascending, simple, 6-10 cm. high ; 

 leaves ovate or oblong, obscurely crenate, the lowest petioled and rounded, the 

 upper passing into lanceolate bracts ; flowers whitish or pale blue with deeper 

 stripes ; pods flat, rounded, broader than long, obtusely notched. Moist banks. 



* » ♦ Leaves mostly alternate ; flowers appearing axillary and solitary. 



