584 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
19. Pentstemon humilis Nutt.; A. Gray, Proc. Amer. Acad. 6: 69. 1862. 
Tyre Locauity: ‘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 Nuit. Gen. Pl. 2: 52, 1818. 
Pentstemon pubescens gracilis A, Gray, Proc. Amer, Acad. 6: 69. 1862. 
Typr Locauiry: ‘From the Arikarees to Fort Mandan, in depressed soils,” 
Rance: Wyoming and Nebraska to Colorado and New Mexico. 
New Mexico: Glorieta; Sandia Mountains; Santa Fe; Beulah. Open hills and 
plains, in the Upper Sonoran and Transition zones. 
21. Pentstemon oliganthus Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 172. 1913. 
Type Locauity: 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. 
Typr Locauity: Indian Creek Pass, Colorado. 
Rance: Wyoming to northern New Mexico. 
New Mexico: Tunitcha Mountains; Chama. Moist meadows, in the Transition 
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. 
Rance: Mountains of New Mexico. 
New Mexico: Sandia Mountains; Beulah; Jemez Mountains; White Mountain Peak. 
Transition’ Zone. 
24, Pentstemon virgatus A. Gray in Torr. U. 8. & Mex. Bound. Bot. 113, 1859, 
Type Locatiry: Santa Rita del Cobre, New Mexico. Type collected by Wright 
(no. 1476). 
RanGeE: 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 /. secundijlorus A. Gray, not Benth. (P. 
unilateralis Rydb.), but it isa very different plant. 
25. Pentstemon neomexicanus Woot. & Standl. Contr. U. 8. Nat. Herb. 16: 172. 
1913. 
Type Locauity: In pine woods near Gilmores Ranch on Eagle Creek, White Moun- 
tains, New Mexico, Type collected by Wooton & Standley (no. 3507). 
Rane@e: Mountains of southern New Mexico. 
New Mexico: White and Sacramento mountains; Capitan Mountains. ‘Transition 
Zone. 
26. Pentstemon brandegei Portier, 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. 
Ranae: Colorado and northern New Mexico. 
New Mexico: Raton; 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. 
