SCROPHULAlUACEAli (FIGWOET FAMILY) 731 



11. G. purpurea L. (Purple G.) Stem 3-8 dm. liigli, somewhat angled, 

 nearly or quite smooth; branches long, widely spreading, usually flexuous, 

 mostly 3-8-flowered ; leaves linear, acute, rough-margined; calyx commonly 

 exceeding- tlie pedicel, its teeth shai'p-pointed, from very short to half the length 

 of the tube; corolla usually 2.6-3 cm. long, bright purple, veiy pubescent.— 

 Low mostly sandy ground, e, Mass. to Fla. and Tex., near the coast ; also 

 westw. along the Great Lakes to Wise. 



= = Flowers smaller; corolla 1.4-1.8 cm. long. 



12. G. paupSrcula (Gray) Britton. Slender erect annual, 1-6 dm. high: 

 stem angled, glabrous or nearly so, subsimple or more often branched above ; 

 leaves narrowly linear, acute, scabrous, often with smaller ones fascicled in 

 their axils ; pedicels usually about equaling the globose capsules ; calyx-teeth 

 deltoid-lanceolate, sharp-pointed; corolla decidedly smaller than in the pre- 

 ceding species, 1.4-1.8 cm. long, lighter rose-purple, merely puberulent except at 

 the hairy margin. ((?. purpurea, var. Gray.) — Sterile soil, bogs, sandy shores, 

 etc., N. S. to Man., and southw. 



13. G. maritima Raf. (Sea-side G.) Similar to the preceding, but some- 

 what ^esAj/,- leaves linear, obtuse or rounded at the ends; calyx-teeth vei-y 

 short and obtuse or rounded ; corolla 1-1.5 cm. long. — Salt marshes along the 

 coast, s. Me. to Fla. 



«- ^- Pedicels usually exceeding the corolla; woolly anthers cuspidate at base. 



** Corolla-lobes rounded or merely emarginate ; capsule subglobose. 



= Corolla glabrous within. 



a. Leaves flat, linear to lanceolate, much blackened in drying. 



14. G. tenuifblia Vahl. (Slender G.) Leaves narrowly linear, acute, the 

 floral ones mostly like the others ; calyx-teeth very short, acute ; capsule 

 globular ; corolla 1-1.5 cm. long, rose-purple, the upper lip somewhat arched. 

 (<?. Q-attingeri Small.) — Low or dry ground, w. Me. and w. Que. to Neb., Fla., 

 and Tex. Var. maceophylla Benth. Stouter ; larger leaves 8-5 cm. long, 

 and 4-5 mm. wide, scabrous ; pedicels ascending ; oalyx-teeth larger. (©. 

 Besseyana Britton.) — Ct. to Ont., N. Mex., and the Rocky Mts. 



6. Leaves filiform or with revolute margins, slightly blackened in drying. 



15. G. Skinneriina Wood. Slender, 2-5 dm. high, with ascending branches, 

 the slightly margined angles roughish ; leaves hispidulous-scabrous ; pedicels 

 rather stiffly ascending, 1-4 cm. long ; calyx greenish, the lance-deltoid lobes; 

 nearly one third as long as the tube ; corolla 10-13 mm. long, rose-color ; capsule 

 globose-ovoid. ((?. tenuifolia, var. asperula Gray.) — Dry woods and hills, Oct. 

 to Minn., Tenn., and Mo. 



= = Corolla villous in the throat. 



16. G. setHcea Walt. Slender, 3-6 dm. high, with strongly ascending 

 branches ; leaves setaceous-linear, often revolute, somewhat darkened in drying ; 

 pedicels capillary, 1-2 cm. long ; calyx green, with minute subulate teeth ; 

 corolla rose-purple, 2 cm. long, ventricose above the slender exserted tube, the 

 lobes wide-spreading. ((?. Holmiana Greene.) — Sandy barrens, D. C. to Fla. 

 and Tex., mostly near the coast. 



^ ,H- Corolla-lobes obcordate ; capsule ellipsoid-ovoid. 



17. G. parvifblia Chapra. Rigid, 0.5-5 dm. high, with stiff upright angled 

 branches ; leaves linear-subulate, rather rigid, not darkened in drying ; inflores- 

 cence subracemose, the floral leaves greatly reduced ; calyx whitish-green, 

 nervose, with short subulate teeth; corolla about 1 cm., long, bright pink, the 

 lobes all spreading ; capsule much exceeding the calyx. ((?. Skinneriana Man. 

 ed. 6, not Wood ; G. deremloba Greene.) — Sandy soil, near the coast, Mastn, 

 to Fla. and La.; and apparently in the Miss, basin- 



