202 SCROPHULAR1ACEAE (FIGWORT FAMILY) 



J. Calyx segments 4-8 mm. long, oblong; corolla dull white, 6-8 mm. long. E. 



A. kingii 

 AA. Perennial; corolla 20-30 mm. long; escaped from gardens. W. 



A. majus (GARDEN SNAPDRAGON) 



COLLINSIA (BLUE LIPS) 



Herbs, low. Leaves opposite or whorled. Calyx 5-cleft. Upper lip of 

 corolla 2-clef t ; lower larger, 3-lobed, its middle lobe a keel-like sac inclosing 

 the stamens and style. Fifth stamen a gland. (Honor of Z. Collins, an 

 American botanist.) 



A. Inflorescence glandular. 



B. Plant 5-10 cm. high; lower leaves orbicular to oblong; pedicels bent back in 

 fruit; flowers many; calyx lobes broadly subulate, acute; seed oblong, nearly 

 terete, not winged. U. C. C. torreyi 



BB. Plant 15-45 cm. high; lower leaves spatulate; pedicels erect in fruit; flowers 

 1-6 in a whorl; calyx lobes lanceolate to triangular, somewhat obtuse; seed saucer- 

 shaped, winged. C. E. C. rattan! 

 AA. Inflorescence not glandular. 



C. Calyx lobes 2 or more times as long as the calyx tube; pedicels erect in fruit. 



D. Scurfy puberulent; flowers in dense whorls in upper axils. W. C. multiflora 

 DD. Glabrous throughout; flowers usually solitary in the upper axils. W. C. 



C. sparsiflora 

 CC. Calyx lobes scarcely longer than the calyx tube. 



E. Leaves all linear, all entire, or a few of the lower obscurely dentate; pedicels 

 erect in fruit. U. C. linearis 



EE. Leaves not all linear, at least the lower wider, nearly always at least the lower 



ones distinctly toothed or notched. 



F. Corolla 8-18 mm. long, its tube shorter than the limb. 



G. Corolla 8-10 mm. long; pedicels erect in fruit. W. C. C. pusilla 



GG. Corolla 12-18 mm; pedicels bent back in fruit. W. C. C. grandiflora 



FF. Corolla 5-7 mm. long, its tube longer than the limb; pedicels bent back in 



fruit. W. C. E C. parviflora 



TONELLA 



Herbs, annual, small. Leaves opposite. Flowers small, in axillary 

 whorls. Calyx 5-lobed. Corolla slightly gibbous at base, 5-lobed. Sta- 

 mens 4, the 5th a rudiment. Capsule subglobose, septicidal. Seeds 2-4. 

 (Meaning not determined.) 



A. Stem weak and filiform; corolla 2-3 mm. wide; ovules and seeds i in each cell. 

 C. E. T. collinsioides 



AA. Stem stout; corolla 6-10 mm. wide; ovules and seeds 3-4 in each cell. E. 



T. floribunda 



PENTSTEMON (BEARDTONGUE) 



Perennial. Leaves opposite, sometimes partly alternate or whorled. 

 Calyx 5-lobed. Limb of corolla 2-lipped; upper lip 2-lobed; lower 3-lobed. 

 Stamens 4, included, 2 shorter ; 5th stamen a mere filament. (Gk. pente = 

 5, stemon = a stamen; because the 5th stamen is conspicuous, although 

 antherless.) Large and difficult genus. (F. & R. pp. 346-349.) 



