SCROPHULARIACEAE 



549 



Anther-sacs transverse, separ- 

 ated. 

 Anther-sacs vertical, contiguous. 

 Calyx of 4-5 partially united sepals. 

 Lower lip or lobes of the corolla external in the bud. 

 Sepals distinct or nearly so. 



Corolla campanulate or rotate, stamens included. 

 Stamens 4; corolla nearly regular. 

 Stamens 2; corolla rotate, slightly irregular. 

 Corolla tubular; stamens exserted. 

 Sepals partially or wholly united into a tube. 

 Corolla various, but only slightly 2-lipped. 

 Corolla yellow. 

 Corolla not yellow. 



Capsule not included in the calyx. 



Anthers all alike; leaves not auricled, 



flowers pedicelled. 

 Anthers of shorter stamens smailer. 

 leaves auricled at base; flowers 

 sessile. 

 Capsule included in the calyx; corolla salver- 

 form. 

 Curolla strongly 2-lipped; stamens ascending under the 

 upper lip. 

 Anther-sacs unlike, the inner pendulous. 

 Anther-sacs alike, parallel. 



Ovules 1-2 in each cavity; capsules 1-4 seeded. 

 Ovules several-many in each cavity; capsules 

 many-seeded. 

 Calyx split, without bractlets. 

 Calyx not split. 



Calyx scarcely inflated, 2-brac- 



teolate. 

 Calyx much inflated and veiny in 

 fruit, ebracteolate. 



12. Gratiola. 



13. Ilysanthes. 



14. MlCRANTHEMOM. 



15. LlMOSELLA. 



16. Veronica. 



17. Leptaxdra. 



18. Aureolaria. 



19. Agalinis. 



20. Otophylla. 



21. Buchnera. 



22. Castilleja. 



23. Melampyrum. 



24. Pedicui aris. 



25. schwalbea. 



26. Rhixaxthus. 



1. Verbascum [Tourn.] L. 



Plants densely woolly; flowers in dense terminal spikes or spike-like 

 racemes. 



Leaves decurrent on the stem. I. V. Thaspus. 



Leaves not decurrent or only slightly so. 2. V. phlomoides. 



Leaves white-tomentose beneath; flowers in terminal panicles. 3. V. Lychnitis. 



riant glabrous or slightly glandular. 4. V. Blallaria. 



i. V. Thaspus L. In fields and waste places: N. S. to S. Dak., 

 Fla. and Kan. Naturalized from Europe. 

 Common as a weed in most parts of our area. 



2. V. phlomoides L. In fields: Mass. to N. Y. Adventive from 

 Europe. 



Rare as an occasional weed in the area. 



