102 Salicaceae 



so, oblanceolate or narrowly elliptic, acute at both ends, more or 

 less villous-pubescent ; stipules none ; aments on short leafy lat- 

 eral branches, 2-3 cm. long, densely flowered, oblong; scales 

 densely villous all over, oblong ; filaments crisp villous upon the 

 lower half; capsules clothed with long lax hairs, closely sessile; 

 style evident ; stigmas divided, linear. 



Common along streams and washes throughout our valley region. 



7. S. macrostachya leucodendroides Rowlee. Shrub 1-3 m. 

 high; leaves 10-12 cm. long, 1 cm. wide, densely white tomentose 

 on both sides, largest remotely denticulate ; aments cylindric, 4-5 

 cm. long, otherwise as in the type. 



San Bernardino Valley. 



8. S. exigua Nutt. Small shrub or becoming a small tree ; 

 branches light brown; leaves 4 cm. long, 1-2 cm. wide, yellowish, 

 closely sessile, entire or nearly so, canescent when young, usual- 

 ly becoming quite glabrous at maturity, very narrowly elliptic, 

 veins very indistinct; stipules none; aments 2-5 cm. long, on 

 peduncles about the same length, appearing with the leaves, 

 rather densely and evenly flowered, sometimes the lower flowers 

 remote; scales in the staminate ament oblong to obovate, in the 

 pistillate narrower and longer, smooth or more or less crisp 

 villous on the margins; capsule closely sessile, lanceolate, gla- 

 brous, light green ; stigmas short and thick, sessile, sometimes 

 even appearing slightly sunken in the apex of the capsule. 



In the interior valleys, mostly beyond our limits. 



9. S. exigua virens Kowlee. Leaves 10-12 cm. long, 1 cm. 

 wide, nearly glabrous, veins conspicuous on both sides, distinctly 

 denticulate; stipules large, oblong denticulate; aments large, 

 the pistillate 4 cm. long, 1 cm. thick, sometimes borne in 3's at 

 the ends of the long leafy shoots. 



San Bernardino, Wright. 



10. S. argophylla Nutt. Tree or large shrub forming clumps, 

 young twigs puberulent, branches nearly glabrous and very 

 tough ; bark turning from brown to yellow or orange before 

 blooming; leaves narrowly lanceolate, 5 cm. long, 1-2 cm. wide, 

 closely sessile, entire or rarely minutely and remotely denticulate, 

 clothed equally on both sides with an appressed silky pubescence ; 

 stipules none or very minute on vigorous shoots; aments 

 surpassed by their leafy peduncles, 3-5 cm. long, 1-2 cm, 



