SCROPHULARIACE^E. 97 



obovate- elliptical, serrate. Racemes dense, chiefly from alternate 

 axils. Pod obovate-triangular, notched. Hillsides and open 

 woods. 



5. V. serpyllifo'lia, L. (THYME-LEAVED S. ) Flowers whitish 

 or pale blue, in a loose terminal raceme. Stem nearly smooth, 

 branched at the creeping base. Leaves obscurely crenate, the 

 lowest petioled. Pod flat, notched. Roadsides and fields. Plant 

 only 2 or 3 inches high. 



6. V peregri'na, L. (NECKWEED.) Flowers whitish, solitary 

 in the axils of the upper leaves. Whitish corolla, ihorter than the 

 calyx. Stem 4-9 inches high, nearly smooth. Pod orbicular, 

 slightly notched. Waste places and cultivated grounds. 



7. V. arven'sis, L. (CORN SPEEDWELL.) Flowers (blue) as in 

 No. 6, but the stem is hairy, and the pod inversely heart-sJiaped. 

 Cultivated soil. 



3. LINA'RIA, Tourn. TOAD-FLAX. 



L. vulga'ris, Mill. (TOAD-FLAX. BUTTER- AND-EGGS.) Leaves 

 crowded, linear, pale green. Corolla pale yellow, with a deeper 

 yellow or orange-coloured palate. Roadsides. 



4r. SCROPHULA'RIA, Tourn. FIGWOBT. 



S. nodo'sa, L. Stein smooth, 3-4 feet high. Leaves ovate or 

 oblong, the upper lanceolate, serrate. Damp thickets. 



5. CHELO'NE, Tourii. TUBTLE-HEAD. 



C. glabra, L. Stem smooth, erect and branching. Leaves 

 short-petioled, lance-oblong, serrate, opposite. Bracts of the 

 flowers concave. Wet places. 



6. PENTSTE'MON, Mitchell. BEABD-TONGUE. 

 P. pubes'cens. Stem 1-3 feet high, pubescent ; the panicle 

 more or less clammy. Throat of the corolla almost closed. Stem- 

 leaves lanceolate, clasping. Dry soil. 



7. MIM'ULUS, L. MONKEY-FLO WEB. 



1. M. rin'gens, L. Stem square, 1-2 feet high. Corolla blue, 

 an inch long. (A white-flowered variety is sometimes met with.) 

 Leaves oblong or lanceolate, clasping. Wet places, 



