10 SPRING FLORA 



1. SAL.IX. Willow. 



Shrubs or trees, usually near water. Leaves pinnately- 

 veined. Catkins appearing before or with the leaves. Bracts 

 of catkins often hairy. Stamens 1-10: their filaments distinct 

 or rarely united. Pistillate catkins erect or spreading. 

 Stigmas 2, entire or 2-cleft. 



Stamens 3-7; leaves lanceolate, serrate or serrulate. 



Petioles not glandular ................. 1. S. amygdaloldes 



Petioles glandular ....................... 2. S. Fendlerlana 



Stamens 2. 



Leaves obtuse ............... . .......... 3. S. Schoulcrlana 



Leaves acute. 



Leaves linear ............................. 4, S. exigua 



Leaves cordate or subcordate. ... 5. S. cordata Watsonl 



1. S. amyg'daloidcK Anders. Peach-leaved or Black Willow. 

 A small tree. Leaves lanceolate with short acuminate apex 

 and serrulate margins; 2-4 inches long; under surface paler 

 than the upper; petioles slender, without glands. Staminate 

 catkins elongated, the flowers with caducous, light-yellow 

 bracts. Stamens 3-5; their filaments hairy, at least below. 

 Capsule smooth, stipitate. 



2. S. Fendleriaiia Anders. (S. lasiandra Fendleriana Bebb; 

 S. pentandra caudata Nutt. ; S. lasiandra caudata (Nutt.) Sud- 

 worth.) A slender tree sometimes reaching a height of 20 ft. 

 Water sprouts bright yellow. Leaves green on both sides; 

 narrowly lanceolate; long-acuminate; closely glandular-serrate. 

 Petioles short; glandular. Staminate catkins densely flowered; 

 1-2 inches long. Stamens 3-7. mostly 5. Style short; stigmas 

 2, each 2-lobed. 



3. S. Schouleriana Barratt. (S. Nuttallii Sarg. ; S. flavescens 

 Nutt.) Usually shrubby but sometimes a slender tree. Leaves 

 2-3 inches long.obovate or oblanceolate; usually obtuse; wedge- 

 shaped at base: upper surface at first downy, but becoming 

 glabrate and dull-green. Catkins appearing before the leaves; 

 scales black, very silky. Stamens 2. their filaments smooth. 

 Pistillate catkins on peduncles, in fruit usually at least 2 

 inches long; stigmas long, sessile; entire or deeply parted. 

 Capsules hairy, stipitate. Along mountain streams. April- 

 June, according to altitude. The freshly-cut wood sometimes 

 has a disagreeable skunk-like odor. 



4. S. exisriia Nutt. (S. nevadensis Wats.; S. luteosericea 

 Rydb.; S. longifolia exigua Nutt.) Tall, bushy shrub. Leaves 

 entire, broadly linear, obscurely-veined. Catkins appearing 

 just before, with or just after the leaves; bracts yellow, cadu- 

 cous. Stamens 2; their filaments hairy. Capsule smooth, 

 sessile. April-May, 4,000-7,000 ft. 



5. S. cordata Watsonl Bebb. (S. Watsoni (Bebb) Rydb.; S. 

 flava Rydb.; S. lutea Nutt.) Bushy shrubs with smooth 

 branches, light-yellow (at least when young). Leaves light- 

 green; elliptical, short-acuminate; entire or obscurely serru- 

 late, 1-3 inches long; obtuse or subcordate at base. Stipules 

 oblique, usually large and persistent. Catkins leafy-bracted. 

 peduncled; appearing before the leaves. Stamens 2, their fila- 

 ments smooth. Capsule glabrous; long-stipitate. April-May. 



