Bailey & Bailey: Woody Plants of National Parks 39 



Leaves lance-shaped, l'/2 to 3 inches long, dark green above, paler 

 below; found in parks of California and at Glacier National 



Park 5. 5. melanopsls. 



Leaves linear, 2 to 6 inches long, grayish-green on both sides; found 



in Rocky Mountains and Southwest 6. 5. exigua. 



Capsules hairy (sometimes smooth in age); leaves IJ/^ to 3|/^ inches long, 

 hairy. 



Found in Southwest parks 7. S. iaxlfoUa. 



Found in Pacific slope parks 8. 5. Hindiiana. 



Leaf-stalks and bases of leaves glandular; stamens 3 to 9 ; capsules smooth. 



Leaves lance-shaped, long-pointed, 2 to 5'/2 inches long 9. 5. caudala. 



Leaves elhptic-lance-shaped, short-pointed, 2 to 3 inches long 



10. 5. serissima. 



Scales of catkins brownish, persistent; leaves not all linear. 



Leaves dark green above, whitish below, not hairy or thinly so; catkins naked 



at base, appearing before the leaves; capsules smooth or sometimes 



thinly hairy. 



Leaves of flowering shoots narrowly elliplic-oblong, ^/g, to 1 '/4 inches long; 



summer leaves up to 6 inches long; found in Rocky Mountain 



National Park 11. S. irrorala. 



Leaves linear to narrowly reverse-egg-shaped, 2 to 5 inches long; found in 



Pacific Slope parks 28. 5. lasiolepis. 



Leaves green above, densely silky, woolly, or velvety below; catkins leafy- 

 bracied at base, appearing with the leaves; capsules silky or woolly. 



Branchlets smooth; leaves silky-hairy below; found in Ycsemite and 



Sequoia National Parks 45. 5. /epsoni. 



Branchlets at first white-woolly or hairy, becoming smooth; leaves woolly 

 or velvety below; not found west of the Rocky Mountains. 



Leaves dull below with fine white wool; styles reddish; western species 



found in Glacier National Park --.....46. 5. Candida. 



Leaves lustrous below with velvety hairs; styles yellowish; eastern 



species reported from Isle Royale 47. S. pelliia. 



2. Leaves mosllv iance-shaped lo oVal, egg-shaped, or roundish, 

 mostly less than 4 to 5 times longer than Wide. 



a. Scales of catkins yellowish, persistent (or socn falling in 5. Cexteriana.) 

 Leaves green on both sides, sometimes paler below, but not whitish. 



Leaves narrowly lance-shaped or reverse-lance-shaped to elliptic-oblong; silky 

 or woolly on both sides at first, becoming smooth; filaments of stamens 

 hairy at base. 

 Small shrubs '/2 to 3 feet high; twigs and leaves yellowish-woolly; scales 



of catkins persistent; styles I to l'/2 mm. long ....12. 5. hrachvcarpa. 



Larger shrub, 3 to 12 feet high; leaves silky-hairy; scales of catkins soon 



falling; styles very short 13. 5. Cevcriana. 



Leaves reverse-egg-shaped to broadly lance-shaped or oblong-elliptic, smooth or 

 somewhat gray-woolly below; filaments smooth. 



Shrubs 6 to 12 feet high ; leaves 1 to 2 inches long, smooth or woolly 



below; capsules thinly hairy; found in western parks 



14. S. Debhiana. 



Shrubs 3 to 6 feet high; leaves '/2 to IJ/2 inches long, smooth; capsules 



smooth; found on Isle Royale 15. S. pedicellaris. 



