112 SCROPHULARIALES 



1. Scrophularia marylandica L. 



In the eastern part of the state, not common. Weeping Water. 



2. Scrophularia leporella Bickn, 

 Scrophularia occidentale (Rydb.) Bickn. 



Belmont; Red Cloud; Valentine. 



4. Pentstemon. 823. 



Flowers rarely over 3 cm. long. 

 Leaves serrate or the stems pubescent or purerulent. 



Corolla white, 1.5-2 cm. long. 2. P. albidus. 



Corolla red or purple. 2-2.5 cm. long. 

 Leaves entire or ripand. ' 1. P. cristatus. 



Leaves serrate. 3. P. gracilis. 



Leaves entire, whole plant glabrous, often glaucous. 

 Bracts lanceolate or the lower broader. 

 Leaves lanceolate or the lower broader. 



Flowers 2 cm. long or less. 6. P. acuminatus. 



Flowers 2.5 cm. long or more. 7. P. glaber. 



Leaves all linear or linear-lanceilate. 8. P. angustifolius. 



Bracts ovate, acuminate, large. 9. P. haydenl. 



Flowers 5 cm. long. 



Leaves dentate. 4. P. cobaea. 



Leaves entire. 5. P. grandiflorus. 



1. Pentstemon cristatus Nutt. 



In prairies in the western part of the state. Pine Ridge. 



2. Pentstemon albidus Nutt. 



On high prairies and sand-hills mostly in the western part of the 

 state. Antelope County; Anselmo; Box Butte County; Kearney 

 County; Ft. Robinson; St. James; Thedford; Valentine. 



3. Pentstemon gracilis Nutt. 



In wet meadows, often near streams or pools. Cherry County; Deuel 

 County; Pine Ridge; Sioux County; War Bonnet Canon. 



4. Pentstemon cobaea Xutt. 



In dry prairies in the eastern part of the state. Crete; Fairbury; 

 Gage County; Lancaster County. 



5. Pentstemon grandiflorus Nutt. 



In dry sandy places over most of the state. Anselmo; Banner County; 

 Belmont; Cass County; Fairbury; Grand Island; Kearney County; 

 Lincoln; Weeping Water; Valentine. 



6. Pentstemon acuminatus Dougl. 



In dry soil mostly in the western part of the state. Antelope County. 



7. Pentstemon glaber Pursh. 



In moist sandy soil, mostly in the western part of the state. Alliance; 

 Banner County; Belmont; Harrison. 



8. Pentstemon angustifolius Pursh. 



In dry soil in the northwestern part of the state. Antelope County; 

 Box Butte County; :\Iullen; Pine Ridge; Ft. Robinson; Thedford; 

 Valentine. 



9. Pentstemon haydeni S. Wats. 



In the sand-hills, in the edge of "blow-outs." Thomas County. 



