SALICACE^E 259 



Dry hills, especially on limestone, but less common in Switzerland 

 than the last, except in Valais and the Southern Alps, where it 

 reaches 1600 m. (Keller and Schinz). 



Distribution. Europe, especially Central, Western Asia. 



SALICACE^: 



Trees or shrubs with alternate, stipulate leaves. Flowers di- 

 oecious. Perianth o. Male flowers (in catkins) of 2 or more stamens. 

 Female flowers of a i-celled ovary with 2 styles and many ovules. 

 The family is not represented in Australia or Malay. 



SALIX L. Willow. 



Trees or shrubs, with simple, entire, or serrate leaves. Stipules 

 persistent or deciduous. Stamens 2 or more. Catkins usually erect. 

 Many species found in damp and cold regions of the globe, with a 

 great tendency to hybridise. 



Salix retusa L. 



A small, creeping shrub with ascending branches and 5-9 flowered 

 terminal catkins. Leaves obovate, running into a short leaf-stalk, 

 entire or glandular-serrate at the base, obtuse, sometimes emar- 

 ginate, glabrous, shining above, smooth beneath. Female catkins, 

 long, few-flowered. Scales as long as the glabrous ovary. Stigmas 

 2-3 cleft. Lobes filiform. 



Wet Alpine pastures and rocks up to 10,000 feet. June, July. 



Distribution. Carpathians ; Eastern, Central, and Western Alps ; 

 Pyrenees, Jura, Apennines, Balkans, Altai. 



The variety serpyllifolia Scop, has much smaller leaves. 



Salix reticulata L. 



This small, creeping shrub, with round, entire, net-veined leaves 

 does not often descend below about 4500 feet in Switzerland, and it 

 ascends to over 8000 feet. June to August. 



Distribution. Carpathians, Alps, Pyrenees, Arctic Europe, 

 Asia and America. British. Often found fossilised. 



Salix herbacea L. 



This very small, creeping shrub, with branches only about 2 

 inches above the ground, and small, nearly orbicular, crenate- 

 serrate leaves, does not descend below about 5000 feet in Switzer- 

 land ; and it ascends to at least 11,000 feet. 



Distribution. Carpathians, Alps, Pyrenees, Arctic Europe, Asia 

 and America. British. 



Salix arbuscula L. 



An erect shrub, 2-3 feet high, bushy, with small coriaceous 



