112 



Leaves whorled. Corolla white, its lobes shorter 

 than the tube. Capsule acute, longer than broad, 



not flattened. Plant 10-20 dm. tall. 11. Veronicastrum. 



Leaves opposite or alternate. Corolla blue, its lobes 

 longer than the tube. Capsule acute to deeply 

 notched, broader than long, flattened. Plants 

 lower. 12. Veronica. 



BB. Stamens four, didynamous, the antero-laterals 

 usually slightly the longer. Parasitic on roots of 

 other plants. 

 C. Sepals five, alike, more or less united. Corolla- 

 lobes all somewhat distinct, the posterior 

 spreading or broadly arched; anterior lobe 

 external in bud. Stigma elongated. Capsule 



locuHcidal, splitting through septum. VII. Buchnereae. 



Corolla yellow or pink, campanulate, with in- 

 flated throat and open orifice. Stamens 

 all perfect, the anthers two-celled,- lanose. 

 Two stigmatic lines down each side of 

 style-apex. Filaments and style nearly 

 as long as the tube of the corolla. Capsule 

 exserted from the calyx-tube. 

 Corolla yellow. Capsule acute to acumi- 

 nate. Leaves lanceolate to ovate, entire 

 to bipinnatifid, petioled. Stem stout, 



over 4 dm. tall. Perennials or annuals. i3- Aiireolaria. 



Corolla pink, with red spots within on an- 

 terior side. Capsule rounded, with a 

 mucro. Leaves filiform to lanceolate, 

 entire or auriculate-lobed at base, 

 sessile. Stem slender, usually lower. 

 Annuals. 

 Stem ascending-scabrellous to ■ glabrous. 

 Leaves linear to filiform, entire. Pedi- 

 cels over I mm. long. .Calyx-lobes 

 linear to subulate, slightly longer to 

 usually much shorter than the tube. 

 Corolla with two yellow lines within 

 throat anteriorly. Anther-sacs of both 

 pairs of stamens uniform. Capsule 

 globose to globose-ovoid, 3-7 mm. long. 

 Seeds closely reticulate. i4- Agalinis. 



Stem retrorse-hispid. Leaves lanceolate, 

 usually auriculate-lobed at base. Pedi- 

 cels less than i mm. long. Calyx- 

 lobes ovate, longer than the tube. 

 Corolla without yellow lines within 

 throat anteriorly. Anther-sacs of pos- 



