584 CONTEIBUTIONS FROM THE NATIONAL HEEBAEIUM. 



19. Pentstemon humilis Nutt.; A. Gray, Proc. Amer. Acad. 6: 69. 1862. 

 Type locality: "Rocky Mountains." 



Range: Montana and Alberta to Nevada and New Mexico. 



New Mexico: Sierra Grande; Hermits Peak; Cross L Ranch. Open meadows, in 

 the Transition Zone. 



20. Pentstemon gracilis Nutt. Gen. PI. 2: 52. 1818. 

 Pentstemon pulescens gracilis A. Gray, Proc. Amer. Acad. 6: 69. 1862, 

 Type locality: "From the Arikarees to Fort Mandan, in depressed soils." . 

 Range: Wyoming and Nebraska to Colorado and New Mexico. 



New Mexico: Glorieta; Sandia Mountains; Santa Fe; Beulali. Open hills and 

 plains, in the Upper Sonoran and Transition zones. 



21. Pentstemon oUganthus Woot. & Standi. Contr. U. S. Nat. Herb. 16: 172. 1913. 

 Type locality: Mountains west of Grants Station, New Mexico. Type collected 



by Wooton, August 1, 1892. 



Range: Known only from type locality. 



22. Pentstemon rydbergii A. Nels. Bull. Torrey Club 25: 281. 1898. 

 Pentstemon erosus Rydb. Bull. Torrey Club 28: 28. 1901. 



Type locality: Indian Creek Pass, Colorado. 

 Range: Wyoming to northern New Mexico. 



New Mexico: Tunitcha Mountains; Chama. Moist meadows, in the Ti'ansition 

 Zone. 



23. Pentstemon whippleanus A. Gray, Proc. Amer. Acad. 6: 73. 1862. 



Type locality: Arroyos in the Sandia Mountains, New Mexico. Type collected 

 by Bigelow. 



Range: Mountains of New Mexico. 



New Mexico: Sandia Mountains; Beulah; Jemez Moimtains; White Mountain Peak. 

 Transition Zone. 



24. Pentstemon virgatus A. Gray in Torr. U. S. & Mex. Boimd. Bot. 113. 1859. 

 Type locality: Santa Rita del Cobre, New Mexico. Type collected by Wright 



(no. 1476). 



Range: Mountains of New Mexico and Arizona. 



New Mexico: Pajarito Park; Inscription Rock; Sandia Mountains; Glorieta; Ra- 

 mah; mountains west of Grants; Fort Wingate; Mogollon Mountains; Burro Mountains; 

 Santa Rita; Hanover Mountain. Transition Zone. 



This has generally been confounded with P. secundijloiiis A. Gray, not Benth. {P. 

 unilateralis Rydb.), but it is a very different plant. 



25. Pentstemon neomexicanus Woot. & Standi. Contr. U. S. Nat. Herb. 16: 172. 

 1913. 



Type locality: In pine woods near Gilmores Ranch on Eagle Creek, ^\^lite Moun- 

 tains, New Mexico. Type collected by Wooton & Standley (no. 3507). 



Range: Mountains of southern New Mexico. 



New Mexico: Wliite and Sacramento mountains; Capitan Mountains. Transition 

 Zone. 



26. Pentstemon brandegei Porter, Mem. N. Y. Bot. Gard. 1: 343. 1900. 

 Pentstemon cyananthus brandegei Porter in Port. & Coult. Syn. Fl. Colo. 91. 1874. 

 Type locality: Sierra Mojada, Colorado. 



Range: Colorado and northern New Mexico. 



New Mexico: Pvaton; Sierra Grande. Plains and low hills, in the Upper Sonoran 

 Zone. 



This is one of the most showy and probably the handsomest of all our species. 



