406 THE KINDS OF PLANTS 



3. ANTIRRHINUM. Snapdbagon. 



From Linaria differs chiefly in having no spur, but only a swelling at the 

 base of the corolla. 



A. majus, Linn. Snapdragon. Fig. 243. Erect biennial or perennial: 

 leaves oblong, smooth, entire: flowers erect or ascending, 2 in. long, purple 

 or white, in a raceme with downy axis. Europe. 



4. SCROPHULARIA. Figwort. 



Herbs perennial, rank and generally ill-smelling, with opposite leaves, 

 and very odd-looking small, greenish-purple flowers, in simple or compound 

 loose terminal cymes: calyx deeply 5-parted: corolla irregular, with a globu- 

 lar tube, the limb 5-lobed, 4 upper lobes erect, but the lower one hori- 

 zontal or reflexed: stamens 5, 4 fertile, in two pairs, the fifth sterile and a 

 mere rudiment at the top of the corolla-tube. 



S. marilandica, Gray. Smooth, 3-6 ft., much branching, in thickets and 

 damp woods, blooming in late summer and early fall; stems 4-angled: leaves 

 ovate, oblong or lanceolate, coarsely toothed, 3-9 in. long, on slender petioles : 

 flowers small, dull-colored. 



5. CHELONE. Turtlehead. Snakehead. 



Smooth, erect perennials, with opposite, serrate and stalked leaves: 

 flowers large, sessile, white or rose-tinged, of curious shape, in the upper 

 leaf axils, forming a terminal spike: calyx 5-parted, segments acute, 

 bracted at base: corolla irregular, with inflated and elongated tube con- 

 cave underneath, the limb 2-lipped, but lips only slightly open, the upper 

 lip broad, usually emarginate, lower lip 3-lobed, bearded within: stamens 5, 

 the fifth sterile and smaller, the filaments woolly. 



C. glabra, Linn. Two to 4 ft. high, in swamps and by brooks or in 

 wet places. Late summer. 



6. PENTSTEMON. Beard-tongue. 



Perennial herbs, with opposite leaves, the upper sessile or clasping: 

 flowers showy: calyx 5-parted: corolla irregular, with tube more or less 

 inflated and 2-lipped, the lower lip 3-lobed: stamens 5, 4 in 2 pairs each 

 bearing an anther, the fifth filament conspicuous but sterile, sometimes 

 longer than the others and bearded: fruit a globose capsule with many wing- 

 less seeds. 



P. hirsiitus, Willd. (P. pubesccns, Ait.). Stems hairy, rather viscid above, 

 1-2 ft.: leaves narrow-oblong to lanceolate, minutely toothed or entire; 

 panicle open: corolla about 1 in. long, 2-lipped, with a bearded palate in 

 the throat, dull bluish violet or purplish. Dry situations. May to July. 



7. COLLINSIA. Innocence. Blue-eyed Mart. 



Pretty little annuals or biennials, branching and diffuse with opposite 

 or verticillate leaves, and irregular flowers, blue and white, on pedicels, 

 whorled or solitary in the axils of the upper leaves: corolla 2-lipped with 

 the upper lip 2-cleft, the lower lip 3-cleft, with the middle lobe keeled and 



