SCROPHULARIACE^E. (FIGWORT FAMILY.) 315 



6. V. arvensis, L. Animal, hairy ; steins ascending, branched at the 

 base ; leaves ovate, obtuse, crenate, petiuled ; the floral ones lanceolate, entire, 

 sessile ; flowers nearly sessile ; corolla pale blue. Cultivated ground. In- 

 troduced. May- June. Stems 6'- 12' high. Leaves 4"- 6" long. 



7. V. agrestis, L. Annual, pubescent; stems prostrate, diffusely 

 branched ; leaves all petioled, ovate, coarsely serrate ; peduncles much longer 

 than the calyx, recurved in fruit; corolla blue, striate. Cultivated ground. 

 Introduced. Feb.- May. Stem C'- 12' long. Leaves 6" -9" long. Fruit- 

 ing calyx much enlarged. 



14. CAPRARIA, L. 



Calyx 5-parted, equal. Corolla bell-shaped, equally 5-lobed smooth within. 

 Stamens 4-5: anthers sagittate. Style slender: stigma thick, ovate, at 

 length 2-lobed. Capsule coriaceous, ovate, septicidally 2-valved, the valves 

 2-cleft at the apex. Seeds numerous, reticulate Perennial herbs, or shrubby 

 plants. Leaves alternate, serrate. Peduncles axillary, single or by pairs, 

 mostly 1 -flowered. 



1. C. biflora, L. Shrubby, smooth or pubescent; stem erect, branching; 

 leaves lanceolate or oblong, sharply serrate, narrowed and entire below the 

 middle ; peduncles filiform, mostly by pairs, shorter than the leaves ; calyx 

 lobes linear; corolla deeply 5-cleft ; stamens 5, included. South Florida. 

 Nov. Stem 2- 3 high. Leaves 1'- H' long. Flowers white 1 



15. SCOPARIA, L. 



Calvx 4 -5-parted. Corolla wheel-form, 4-cleft, hairy in the throat. Sta- 

 mens 4. Style club-shaped at the apex. Capsule septicidally 2-valved, the 

 valves membranaceous, entire. Seeds numerous, reticulate. Herbaceous or 

 shrubby plants, with opposite or whorled leaves. Peduncles axillary, com- 

 monly by pairs, 1 -flowered. 



1. S. dulcis, L. Annual, smooth; leaves lanceolate or oblong, toothed, 

 mostly three in a whorl, much longer than the peduncles ; calyx lobes oblong ; 

 flowers small, white. South Florida. Stem l-3higb. Leaves |'-H' 

 long. 



16. HYDRANTHELIUM, HBK. 



Calyx 4-parted. Corolla short-funnel-shaped, 3 cleft. Stamens 3, inserted 

 on the throat of the corolla. Style 2-lobed. Capsule many-seeded. 

 Aquatic herbs, with the habit of Callitriche. Leaves opposite. Peduncles 

 axillary, 1-flowered. 



1. H. Egense, Poepp. Floating; stem filiform, branching; lower 

 leaves small (2" or 3" long), distant, oblong, the upper ones crowded, obo- 

 vate ; calvx lobes ovate-lanceolate. New Orleans (Dr. Hale). Introduced ? 



it 



17. BUCHNERA, L. 



Calyx tubular, 5-toothed. Corolla salver-shaped, 5-lobed, the lobes wedge- 

 obovate. Stamens 4, didynamous, included : anthers 1 -celled. Stylo simple, 

 chili shaped at the apex. Capsule coriaceous, straight, loculicMally 2-valved, 



