296 BCBOPHULABIACEiE. (lTIGWOBT FAMILY.) 



oiks entire; peduncles shorter than tlic calyx; corolla white, minute. — Cul- 

 tivated ground, very common. April - June. — Stem 2'- 12' high. Leaves 

 |'-l'long. 



5. V. arvensis, L. Annual, hairy ; stems ascending, branched at the 

 hasc ; Leaves ovate, obtuse, crenate, pctioled ; the floral ones lanceolate, entire, 

 sessile; flowers nearly sessile ; corolla pale hlue. — Cultivated ground. Intro- 

 duced. May and dune. — Stems 6'- 12' high. Leaves 4"- 6" long. 



6. V. agrestis, L. Annual, pubescent; stems prostrate, diffusely hranched ; 

 leaves all pctioled, ovate, coarsely serrate ; peduncles much longer than the 

 calyx, recurved in fruit; corolla blue, striate. — Cultivated ground. Intro- 

 duced. Feb. - May. — Stem 6'- 12' long. Leaves 6" - 9" long. Fruiting 

 calyx much enlarged. 



13. CAPRABIA, L. 



Calyx 5-partcd, equal. Corolla bell-shaped, equally 5-lobcd, smooth within. 

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

 2-Iobed. Capsule coriaceous, ovate, septicidally 2-valvcd, 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 ' - 1^' long. Flowers white ? 



14. SCOPARIA, L. 



Calyx 4 - 5-partcd. Corolla wheel-form, 4-cleft, hairy in the throat. Sta- 

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

 salve- membranaceous, entire. Seeds numerous, reticulate. — Herbaceous or 

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

 monly by pairs, 1-flowcred. 



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

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

 small, white. — South Florida. — Stem l°-3° high. Leaves V- U' long. 



15. BUCHNERA, L. 



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



obovate. Stamens 4. didynamous, included : anthers l-celled. Style simple, 

 club-shaped at the apex. Capsule coriaceous, straight, loculicidally 2-valvcd, 

 the valves entire. Seeds numerous, reticulate. — Rough herbs, turning black 

 in withering* Leaves opposite, toothed or entire ; the uppermost small, and 

 passing into the bracts of the many-flowered spike. Flowers blue* 



