762 SCROPHULARIACEAE 



3.^ V, virgatum With. Biennial; stem 5-10 dm. high, glandular-puberulent, 

 purplish; basal leaves oblanceolate or spatulate, 1-3 dm. long, sinuate-dentate, 

 somewhat pubescent; stem-leaves lanceolate, sessile or the upper clasping; calyx- 

 lobes lanceolate, spreading; corolla yellow. Waste places and roadsides: Calif. 

 —Ariz.— Utah; N.S.— Ont.; adv. from Eu. Aly-J. 



2. LINARIA (Tourn.) L. 



•FLAX 



Ann 



Lai or perennial herbs, \\dth erect stems. Leaves alternate or opposite, 

 or whorled on the shoots. Flowers in terminal racemes, spikes, or panicles; 

 Sepals 5, partially united. Corolla irregular, 2-lipped; tube spurred at the base; 

 throat partly closed by a convex fold. Stamens 4, didynamous, included. Cap- 

 sule short, openmg by 3-toothed pores below the apex. Seeds angled and wrin- 

 kled, sometimes winged. 



Corolla yeUow. with an orange throat. 2-3 era. long, 1, L. Linaria. 



OoroUa blue or white. 12 mm. or less long. 2. L. texana. 



1. L. Linaria (L.) Karst. Perennial; stem glabrous or puberulent above, 

 1-10 dm. high; leaves linear or nearly so, 2-7 cm. long; racemes dense; calyx- 

 lobes ovate, acute or acuminate/ L. vulgaris Mill. Waste places and fields: 

 Newf.— Ga.— N.M.— Man.; nat. from Eu. Plain— Sub mont. My-0. 



2. L. texana Scheele. Annual or biennial; stem 2-8 dm. high, glabrous; 

 leaves linear-spatulate, 1-2.5 cm. long; racemes slender, 5-30 cm. long; calyx-lobes 

 Imear-lanceolate; corolla blue or white, 10-12 mm. long. L. canadensis Coult. & 

 Nels., not Dum. Sandy soil: Okla.—Fla.— Tex.— Calif.— Ore.— Mex. Son. 

 Mr-Je. 



ANTIRRHINUM (Tourn.) L. Snapdragon. 



Annual 



or perennial caulescent herbs. Leaves alternate, or the lower oppo- 

 site, entire. Flowers solitarj^ in the upper axils, or in terminal racemes or panicles. 

 Sepals 5, partially united. Corolla irregular, 2-lipped; tube more or less saccate 

 below; throat closed by a convex fold. Stamens 4, included; filaments some- 

 tunes dilated above. Styles united. Ovules numerous. Capsule opening by 

 2 or 3 pores below the apex. Seeds wingless, smooth or wrinkled. 



Stem erect, 1-4 dm. high, with very short straight pedicels. - 1. A. KingiL 



Ktem b-12 dm. high, cUmbing by means of long filiform cixrved pedicels. 2. A. Cooperi. 



1. A. Kingii S. Wats. Annual; stem slender, somewhat hairy at the base; 

 l^yes narrowly lanceolate .to linear, 1-3 cm. long, the upper minute; calyx ver> 

 obhque, glandular-hirsute; corolla 4-6 mm. long; capsule oblique, subglobose. 

 Gravelly soil: Utah— Calif. Son, My-Jl. 



' 2. A. Cooperi A. Gray. Annual; lower leaves ovate or oblong, the upper linear, 

 the floral ones minute; corolla bright yellow, about 1 cm. long, conspicuously saccate 

 at the base; palate hairy; capsule globose. Ravines: s Cahf.— ^ Utah. L. Son. 



4. COLLINSIA Xutt. Blue-eyed Mary, Blue- 



fc7 ■ 



Annual caulescent herbs. Leaves opposite or whorled, narrow, entire or 

 toothed. Flowers solitary or clustered in the upper axils, perfect, irregular. 

 Calyx-lobes 5. Corolla 2-Iipped, violet, pink or white, open; tube short; lower 

 hp 3-lobed, the middle lobe involute. Stamens 4, didynamous, declined, enclosed 

 m the middle lobe of the lower lip of the corolla; staminodium present, but gland- 

 like, near the base of the corolla. Styles united. Capsule ovoid or globose, 

 2-valvedj the valves 2-cleft. 



1. C. parviflora Dough Annual; stem 1-3 dm. high, at last diffuse and 

 spreading, mmutely puberulent; leaves oblong, lanceolate, oblanceolate, or hnear, 

 entire or nearly so, the floral ones often in whorls of 3-5; corolla blue, 4-6 mm. 

 long. C. tenclla Piper, in part. Shaded hillsides: Out.— Ariz.— Cahf.— B.C. 

 bubmont. — Mont. Ap.-Jl. 



6. TONELLA Xutt. 



Annual caulescent herbs. Leaves opposite, ternately divided. Flowers 

 axillar>', perfect, shghtly irregular. Calyx deeply 5-cleft. Corolla obscurely 



