202 FOUNDATIONS OF BOTANY 



Corolla wheel-shaped, stamens 5. Verbascum, T. 



Corolla wheel-shaped or salver-shaped, nearly regular, stamens 2. 



Veronica, VI. 



Corolla 2-lipped, the moutli closed by a palate, tubular below, a 



spur at the base. Linaria, II. 



Corolla 2-lipped, the mouth closed by a palate, tubular below, a 



short, broad pouch at the base. Antirrhinum, III. 



Corolla decidedly 2-lipped. 



Stamens with anthers 2. Gratiola, V. 



Stamens 4, with a fifth antherless filament. Pentstemon, IV. 

 Stamens 4, the anther-cells unequal. Castilleia, VII. 



Stamens 4, the anther-cells equal. Pedicularis, VIII. 



I. VERBASCUM, L. 



Biennial ; stem tall, erect. Leaves alternate. Flowers in 

 spikes, racemes or panicles. Calyx deeply 5-cleft. Corolla 

 wheel-shaped, 5-lobed, the lobes nearly equal. Stamens 5, 

 unequal, declined, some or all of the filaments bearded. 

 Style flattened at the apex. Fruit a globose capsule ; seeds 

 roughened.* 



1. V. Blattaria, L. Moth Mullein. Stem erect, slender, sim- 

 ple or sparingly branched, smooth below, downy above, 2-4 ft. high. 

 Leaves oblong to lanceolate, acute at the apex, obtuse or truncate at 

 the base, dentate to pinnately lobed, the lower petioled, the upper 

 sessile and clasi^ing. Raceme long and loose, glandular-downy, 

 pedicels bracted. Corolla white or yellow, marked with brown on 

 the back, about 1 in. wide. Filaments all bearded with purple 

 hairs. Capsule longer than the calyx. Common in fields and waste 

 places ; introduced from Europe.* 



II. LINARIA, Toum. 



Herbs, rarely shrubby. Lower leaves opposite, whorled or 

 alternate. Flowers in bracted racemes or spikes or axillary 

 and solitary. Calyx 5-parted. Corolla 2-lipped, the tube 

 spurred. Stamens 4, with sometimes a rudiment of a fifth. 

 Stigma notched or 2-lobed. Capsule ovoid or globose ; cells 

 nearly equal. 



