SNAPDRAGON FAMILY 127 



y. Corolla strongly 2-lipped ; stamens be- 

 neath the upper lip 

 (x) Bracts and often the calyx con- 

 spicuous and bright-colored 

 m. Calyx 4-toothed ; corolla lips some- 

 what equal Orthocakpus 

 n. Calyx deeply cleft before and be- 

 hind ; upper corolla lip much 

 longer than lower Castilleia 

 (y) Bracts not conspicuous and bright- 

 colored 

 m. Calyx divided to the base, hence 



of 1 or 2 parts Cordvlaxthus 



n. Calyx usually toothed, sometimes 

 1-2-cleft also 

 (m) Leaves entire or toothed 

 r. Calyx 5-toothed, not inflated in 



fruit Mimulus 



s. Calyx 4-toothed, inflated in 



fruit Rhinanth us 



(n) Leaves pinnatifid ; calyx not 

 inflated 

 r. Upper lip a long and trunk- 

 like beak Elephaxtella 

 s. Upper lip not long and trunk- 

 like Pedicularjs 

 3. Stamens with anthers 2 



a. Corolla 4-lobed, almost regular; flow T ers blue 



or bluish Veronica 



b. Corolla 2-lipped or lacking 



(1) Calyx 5-divided, the parts almost separate Gratiola 



(2) Calyx 4-parted Besseya 



Besseya Rydberg 1903 Besseya 



( Named for the American botanist. Bessey) 



(Synthyris Bentham) 



PI. 20, fig. 18. 



Sepals 4, united, petals 4, purple, blue or pink, united into an ot 1 nig 

 or bell-shaped corolla, more or less irregular, rarely wanting, stamens 2, 



