SCROPHULARIACEAE (PIGWORT FAMILY) 731 



11. G. purpureJ*>L. (PURPLE G.) Stem 3-8 dm. high, somewhat angled, 

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

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

 exceeding the pedicel, its teeth sharp-pointed, from very short to half the length 

 of the tube; corolla usually 2.6-3 cm. long, bright purple, very 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. (G. 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 fleshy; leaves linear, obtuse or rounded at the ends; calyx-teeth very 

 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. 

 t-v 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. 

 (G. Gattingeri Small.) Low or dry ground, w. Me. and w. Que. to Neb., Fla., 

 and Tex. Var. MACROPHYLLA Benth. Stouter; larger leaves 3-5 cm. long, 

 and 4-5 mm. wide, scabrous ; pedicels ascending ; calyx-teeth larger. (G. 



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



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



15. G. Skinneriana 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. (6r. tenuifolia, var. asperula Gray.) Dry woods and hills, Ont. 

 to Minn., Tenn., and Mo. 



= = Corolla villous in the throat. 



16. G. setacea 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. (G. Holmiana Greene.) Sandy barrens, D. C. to Fla. 

 and Tex., mostly near the coast. 



w- ++ Corolla-lobes obcordate ; capsule ellipsoid-ovoid. 



17. G. parvifMa Chapm. 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. (G. Skinneriana Man. 

 ed. 6, not Wood; G. decemloba Greene.) Sandy soil, near the coast, Mass, 

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



