WOOTON AND STANDLEY FLORA OF NEW MEXICO. 575 



127. SCROPHULARIACEAE. Figwort Family. 



Herbs or shrubs with usually terete stems and opposite, alternate, or whorled, exstip- 

 ulate, simple, lobed, or parted leaves; flowers perfect, irregular; calyx of 4 or 5 more 

 or less united sepals, persistent; corolla gamopetalous, commonly 2-lipped; stamens 

 4 or 5, usually of 2 kinds, more or less adnate to the corolla, alternate With its lobes; 

 ovary 2-celled, superior, the styles united or nearly distinct; fruit a 2-celled 2-valved 

 capsule, or rarely baccate; seeds usually numerous. 



KEY TO THE GENERA. 



Anther-bearing stamens 5 1. Verbascum (p. 577). 



Anther-bearing stamens 4 or 2. 



Low shrubs; leaves silvery-canescent; corolla fun- 



nelform 2. Leucophyllum (p. 577). 



Herbs (a few suffrutescent at the base) ; leaves and 

 corolla various. 

 Corolla tube spurred or saccate on the lower 

 side. 

 Corolla tube spurred; flowers in terminal 



spikes, dark blue; stems erect 3. Linaria (p. 577). 



Corolla tube saccate at the base; flowers 



mostly soKtary, axillaiy, light blue; 



stems twining. 



Capsules subglobose, opening by 2 or 



3 pores; seeds with irregular 



corky ridges 4. Antirrhinum (p. 578). 



Capsules ovoid, the base of the style 

 becoming hardened and broad- 

 ened, the lateral valves adhe- 

 rent at the base; seeds winged. 5. Maurandia (p. 578). 

 Corolla not spurred nor saccate at the base. 

 Stamens 5, 4 anther-beaiing, tlie fifth not 

 antheriferous, often rudimentary. 

 Staminodium merely a scale adnate to 

 the upper side of the corolla 

 tube. 

 Perennials, 50 cm. high or more; 

 seeds numerous; corolla not 



gibbous at the base 6. Scrophularia (p. 578). 



Annuals; 10 cm. high or less; 

 seeds few or solitary; corol- 

 la gibbous at the base 7. Collinsia (p. 579). 



Staminodium an elongated filament, 



usually longer than the anther- ^ 

 bearing ones. 

 Corolla strongly bilabiate, more or 



less oblique 8. Pentstemon (p. 579). 



Corolla nearly salverform, not 

 strongly bilabiate, the 



lobes nearly alike 9. Leiostemon (p. 586) . 



Stamens 4 or 2. 



Upper lip or lobes of the corolla ex- 

 ternal in the bud. 

 Corolla nearly regular; leaves in 



a basal rosette 13. Limosella (p. 588). 



