SALICINEi^ 



COTTONWOOD, Popnhs ddtoidea. 

 March, April. 



Flovcers dioecious ; Male catkins dense, 3-4 ins. long, \ in. diam., disk 

 oblique, revolute ; Stamens 60 or more, filaments short, anthers dark red ; 

 Females lax, lengthening to 12 ins., disk cup-shaped; Ovary sub-globose, 

 stigmas 3-4, sub-sessile, dilated or lobed ; scales scarious, light brown, glabrous, 

 filiform lobes ; Fruit a capsule, 3-4-valved, oblong-ovate, pitted. 



Leaves alternate, broadly deltoid-ovate, acuminate, truncate, slightly cordate 

 or cuneate at base, coarsely crenately serrate, teeth glandular, thick, firm, 

 pubescent when young, fragrant, 3-5 ins. long and broad, bright shining green, 

 paler beneath ; petioles slender, laterally compressed, 2\-S\ ins. long, stout. 



A deciduous tree, 150 ft. ; Branches large, pendulous at extremities, on 

 young trees nearly erect above, spreading almost at right angles below ; 

 branchlets terete or angled ; Bark on old trunks somewhat rough, ashy-grey 

 or yellow tinged with green on young stems ; Buds ovate, acute, resinous, 

 scales brown. 



Native of North America. 



CANADIAN POPLAR, Populus moniUfera. 



River banks, moist places. March, April. Resists smoke and chemical 

 fumes. The wood is short grained, and the tree hable to be damaged in stormy 

 weather. " The male displays a vigour and attains to a size which the female 

 never equals, and is for this reason frequently looked upon as belonging to a 

 different species, and has become known as the Virginian or the Swiss Poplar." 

 — The Garden. 



Flowers dioecious, appearing before leaves ; Male catkins sessile, glabrous, 



5 ins. long, ^ in. diam. ; Stamens 20-30, anthers red ; scales triangular, yellow, 



incised, ciliate ; Females 2-3 ins. long ; Ovary stalked, globose, stigmas usually 4, 



sessile, deeply lobed, reflexed ; scales very caducous; Fruit a capsule, globoid, 



naked, 3-4-valved, catkins up to 10 ins. long. 



187 R 2 



