SCROPHULARIACEAE 



1G9 



1. L. vulgare(Ait. f. ) Dunal. MATRIMONY VINE. Glabrous, 3-10 

 long : leaves lanceolate, short-petioled : flowers on filiform peduncles, the 

 corolla purplish, 4" broad. Locally common in waste places at Kansas 

 City, Sibley and Independence. July-September. 



6. DATURA L. JIMSON WEED. 



Rank narcotic weeds with axillary short-peduncled, showy flowers. 

 Calyx prismatic, 5-toothed. Corolla funnel-form, its border plaited. 

 Fruit a prickly, imperfectly falsely 4-celled capsule. 



Stem green ; flowers white. 1. D. Stramonium. 



Stem purple; flowers violet. 2. D. Tatula. 



1. D. Stramonium L. 2-5 high, glabrous : leaves ovate, long- 

 petioled, irregularly sinuate : flowers 3'-4 x long: lower prickles of the 

 fruit shorter than the upper. Common in barn-yards. July-September. 



2. D. Tatula L. Closely resembles the last : prickles of the fruit 

 about equal. Common with the last. July-September. 



FAMILY 110. SCROPHULARIACEAE Lindl. 

 Herbs with non-stipulate leaves and perfect flowers. Calyx and corolla 

 divisions 4-5 each, the corolla often 2-lipped. Stamens 2, 4 or 5, inserted 

 on and alternate with the corolla lobes. Ovary superior. 2-celled, usu- 

 ally many-seeded. Style one. Stigma entire or 2-lobed. Fruit a sep- 

 ticidal or loculicidal capsule. 



Fertile stamens five. 1. 



Fertile stamens four with a fifth, sterile one, present. 



VERBASCUM. 



SCROPHULARIA. 



CHELOXE. 



PENTSTEMON. 

 COLLIXSIA. 



Sterile stamen a mere scale. 3. 



Sterile stamen filiform. 



Stamens very woolly. 4. 



Stamens not woolly. 



Corolla tubular. 5. 



Corolla deeply 2-cleft. 6. 



Stamens four ; all fertile. 



Corolla spurred. 2. LIXARIA. 



Corolla not spurred. 



Corolla plainly 2-lipped. 

 Stamens not enclosed in upper lip of corolla. 



Calyx 5-angled, 5 toothed. 7. MIMULUS. 



Calyx 5-parted. 



Leaves pinnatifid. 8. CONOBEA. 



Leaves not pinnatifid. 9. MONNIERA. 



Stamens enclosed in upper lip of corolla. 17. PEDICULARIS. 

 Corolla scarcely 2-lipped. 



Flowers on scapes 12. LIMOSELLA. 



Flowers not on scapes. 



Flowers yellow. 15. AFZELIA. 



Flowers pinkish. 16. GERARDIA. 



Fertile stamens two. 

 Calyx 5-parted. 



Sterile filaments short or wanting. 10. GRATIOLA. 



Sterile filaments long, 2-lobed. 11. ILYSANTHES. 



Calyx 4-parted. 



Leaves opposite. 13. VERONICA. 



Leaves whorled. 14. LEPTANDRA. 



