158 BRASSIACEAE. 



Petals longer than the sepals, about 2 mm. long ; upper leaves mostly 

 once pinnate, with elongated broad terminal segments. 



7. S. andrenarum. 

 Petals not longer than the sepals, about 1.5 mm. long; upper leaves usually 



more dissected ; terminal segment narrow, not elongated. 



8. 5'. halictorum. 

 Pods 5-8 mm. long. 



Pods acute above, acuminate below ; style obsolete. 9. 5". pinnata. 



Pods acuminate at both ends ; style evident. 10. S. procera. 

 Pedicels erect. 



Pods over t mm. thick. 



Plant green and almost glabrous. 10. .5". procera. 

 Plant cinereous-pubescent. 11. 5. brevipes. 

 Pods about .75 mm. thick ; plant glandular puberulent, especially the inflores- 

 cence, or glabrous. 12. 5". glandulifera. 



J.. Sophia leptophylla Rydb. In dry places from Wyo. and Ida. to Colo.^ 

 Alt. about 6500 ft. — Foot-hills, Larimer Co. ; Bosworth's ranch ; Stove 

 Prairie. 



2. Sophia incisa (Engelm.) Greene. On hillsides from Wyo. to N. M. — 

 Alt. 6000-9000 ft. — Walcott; Chicken Creek; Idaho Springs; southeast of La 

 Veta; Mancos; west of Steamboat Springs; Horsetooth Gulch; Cimarron; 

 Glenwood Springs, Garfield Co. 



3. Sophia purpurascens Rydb. On mountain sides in Colo. — Alt. about 

 11,000 ft. — Known only from the type locality: Red Mountain, south of 

 Ouray. 



4. Sophia ramosa Rydb. On mountain sides in Colo. — Alt. about 9000 ft. — ■ 

 Known only from Pitkin. 



5. Sophia filipes (A. Gray) Heller. On hillsides from N. D. and Wash, 

 to Colo. — Mancos. 



6. Sophia intermedia Rydb. On hillsides and prairies and in sandy soil 

 from Mich, and B. C. to Tenn. and Calif. — Alt. 4000-9000 ft. — Sangre de 

 Cristo Creek ; near Ironton, San Juan Co. ; Buena Vista ; Parlin ; Mancos ; 

 plains near Denver; southeast and north of La Veta. 



7. Sophia andrenarum Cockerell. On hillsides and in sandy valleys from 

 Mont, and Wash, to N. M. — Alt. 4000-7000 ft. — Canon City; Walsenburg; 

 river bluffs north of La Veta; Cucharas Valley, near La Veta; Ft. Collins; 

 New Windsor, Weld Co. ; Los Pinos ; near Poudre River ; Antonito. 



8. Sophia halictorum Cockerell. In sandy valleys from Colo, and Utah to 

 Tex. and N. M. — Alt. up to 6000 ft. — Walsenburg. 



9. Sophia pinnata (Walt.) Howell. In sandy soil from Va. and Colo, to 

 Fla. and Ariz. — Alt. 4000-5500 ft. — Plains near Denver; mesas near Pueblo; 

 Ft. Collins; Cache la Poudre; Lamar; Gypsum; New Windsor, Weld Co. 



10. Sophia procera Greene. In sandy valleys from Wyo. to N. M. and 

 Utah, — Alt. 7500-9000 ft. — Ironton Park, 9 miles south of Ouray; Box Canon, 

 west of Ouray; near Pagosa Peak; Tennessee Pass. 



11. Sophia brevipes (Nutt.) Rydb. (Sisymbrium canescens brevipes 

 Nutt. ; 5". incisum Hartwcgianum S. Wats. ; (?) 5". Hartwegianum Fourn.) 

 In sandy valleys, among bushes, from Mackenzie to Minn, and Utah. — Man- 

 cos ; east side Poudre River, above Ft. Collins ; Middle Park. 



12. Sophia glandulifera Rydb. In sandy places from Wyo. to N. M. — 

 La Veta. 



