SCROPHULARIACEjE. 155 



4. snsoPlli I, t ui t, Tourn. FIGWORT. 



S. nodo'sa, L., var. Marilandiea, Gr. Stem smooth; 



3-4 feet high. Leaves ovate or oblong, the upper lanceolate, 

 serrate. Damp thickets. (There appear to be two forms, 

 one with broad leaves and greenish-brown flowers, and the 

 other with narrow leaves and greenish-yellow flowers.) 



5. COLLINS' IA, Nutt. 



1. C. verna, Nutt. Slender, 6-20 inches high. Lower 

 leaves ovate, upper ovate-lanceolate, clasping. Corolla 

 (blue and white) twice as long as the calyx. Peduncles 

 long. Western Ontario. 



2. C. parviflo'ra, Dougl. Smaller. Corolla (blue) very 

 small, scarcely longer than the calyx. Peduncles short. 

 Chiefly N.W. 



6. CHELO'NE, Tourn. TURTLE-HEAD. 



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

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

 the flowers concave. Wet places. 



7. PENTSTE'MON, Mitchell. BEARD-TONGUE. 



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

 panicle more or less clammy. Throat of the corolla almost 

 closed. Stem leaves lanceolate, clasping. Dry soil. 



2. P. gra'eilis, Nutt. Stem 1 foot high or less, glabrous 

 or nearly so, viscid-pubescent above. Corolla tubular- 

 funnel-form, the throat open, lilac-purple or whitish. 

 N.W. 



3. P. aeumina'tUS, Dougl. Stem 6-20 inches high, stout, 

 glabrous and glaucous. Leaves thick, the lower obovate or 

 oblong, the upper lanceolate to broadly ovate or clasping. 

 Panicle narrow, leafy below. N.W. 



4. P. erista'tus, Nutt. Pubescent, and viscid-pubescent 

 above. Leaves from linear-lanceolate to oblong. Corolla 

 funnel- form, the lower lip long-villous within. Sterile filo 

 ment copiously yellow-bearded. N.W. 



