BETULA. Birch 



These are general favorites as specimen or avenue trees. They thrive even 

 in the poorest soils and in the most exposed situations. 



B. alba. European White Weeping Birch. (L r) A graceful tree, with 

 silvery bark and slender branches ; quite erect when young, but after four or 

 five years' growth assumes an elegant drooping habit, rendering the tree very 

 effective. (See plate on page 42.) 



B. alba, var. fastigiata. Pyramidal White Birch. (Mm) An interesting 

 and valuable tree ; in habit as columnar as the Lombardy poplar. 



B. alba, var. laciniata pendula. Weeping Cut -leaved White Birch. 

 One of the most popular and worthy lawn trees. A strictly upright growth of 

 the leader, yet the side branches are so slim as to droop in a most picturesque 

 manner. The foliage is deeply cut and very effective. The bark peels and 

 becomes of the purest silvery white. 



B. alba, var. Youngii. Young's Weeping Birch.. (Ds) A very com- 

 pact weeping form, of elegant habit. 



B. alba, var. purpurea. Purple Birch. (Mm) A good form with dark 

 purplish foliage and white bark. 



B. lenta. Sweet, Black or Cherry Birch. (L r) A good grower, with 

 dark bark, closely resembling the wild cherry. Leaves heart-shaped and shin- 

 ing bright green. 



B. lutea. Yellow Birch. (L r) Closely resembles B. lenta, but leaves are 

 not as bright a green and are more downy beneath. Bark yellowish silver- 

 gray. A good grower and a handsome tree. 



B. populifolia. American White Birch. (Mr) A small, graceful tree, 

 thriving in poor and dry soils. Bark grayish white; not as silvery as C B. alba. 



B. papyrifera. Paper, or Canoe Birch. (L r) Of vigorous, upright 

 habit of growth, with broad foliage and pure white bark when the tree is four 

 inches or more in diameter. A tree of first-class ornamental character. 



B. nigra; syn., r libra. Red Birch. (L r) A moisture -loving tree of grace- 

 ful, slender habit ; densely branched ; foliage light. Remarkable for its torn 

 and ragged bark, and one of the handsomest of the Birches. 



BROUSSONETIA. Mulberry 



B. papyrifera. Paper Mulberry. (M v) A picturesque round-headed 



tree with greenish gray bark blotched with brown; the leaves are large and 

 deeply lobed. 



CARPINUS. Hornbeam 



C.Americana; syn., Caroliniana. American Hornbeam. (Ms) A 

 hardy ornamental tree of dense growth, forming a round head. The foliage 

 somewhat resembles the beech, is a good green, turning to bronzy yellow in 

 the fall and remaining on the tree nearly all winter. A valuable tree for dry, 

 rocky situations. Does well in the shade, and is a first-class hedge plant. 



C. Betulus. European Hornbeam. (Ss) Resembles C. Americana, but 



of more twiggy growth and holds its foliage later in the winter. 



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