WOOTON AND STANDLEY FLORA OF NEW MEXICO. 157 



Aments stout, dense; scales dark; stigmas long, 

 slender; leaves obovate, obtuse or abruptly 



acute 3. S. scouleriana. 



Styles elongated, 1 mm. long or more. 



Leaves glabrous on both surfaces, bright green; aments 



closely sessile 4. 8. chlorophylla. 



Leaves pubescent, sometimes sparingly so; aments on 

 leafy stems. 



Capsules glabrous 7. S. vvonticola. 



Capsules tomentose. 



Leaves glabrate on the upper surface, densely 



sericeous beneath 20. S. subcaerulea. 



Leaves pubescent on both surfaces, not densely 

 sericeous beneath. 



Plants 40 to 150 cm. high 6. S. glaucops. 



Plants less than 10 cm. high. . ^ 5. -S". petrophila. 



Leaves several times as long as broad, linear to elongate-lanceo- 

 late or oblong-lanceolate; capsules glabrous (or weakly 

 villous in nos. 10, 11, 12). 

 Scales not pale yellow, mostly brownish and persistent. 



Leaves broadly lanceolate; young branches not glaucous; 



capsules distinctly pedicellate 8. S. cordata wat- 



soni. 

 Leaves narrowly oblong-lanceolate; yoimg branches 



very glaucous; capsules subsessile 9. S. irrorata. 



Scales pale yellow, deciduous. 



Stamens 2, hairy below; leaves more or less can escent, 

 linear, remotely denticulate, or sometimes entire; 

 capsules more or less liairy. 

 Capsules 3 to 4 mm. long; leaves 1 to 3 cm. long, 



finely pubescent 12. S. taxifolia. 



Capsules 5 to 7 mm. long, glabrate; leaves 5 to 10 

 cm. long. 

 Leaves bright green and glabrate, at least above, 

 denticulate; capsules 7 mm. long, on 



long pedicels 10. S.fluviatilis. 



Leaves canescent, entire or sometimes denti- 

 culate; capsules smaller, 5 mm. long, on 

 a short pedicel or sessile. 



Capsules sessile 11. S. exigua. 



Capsules stipitate 18. S. argophylla. 



Stamens 3 or more, hairy below; leaves bright green 

 above, lanceolate, finely serrulate; capsules 

 • pubescent or glabrous. 



Petioles and leaf blades glandular. 



Leaves long-acuminate, only slightly paler 



beneath, tliin 13 . S. fendleriana. 



Leaves short-acuminate, glaucous beneath, 



g somewhat coriaceous 14. S. lasiandra. 



Petioles and leaf blades not glandular. 

 Leaves paler beneath. 



Capsules short-stipitate ; stamens usually 



3 17. S. bonplandiana. 



Capsulee long-stipitate ; stamens 5 to 9 19. S. amygdaloides. 



