Category: Nature/Gardening/Animals

Common trees of Pennsylvania

Ibberson, Joseph E., 1917-; Aughenbaugh, J. E.; Mickalitis, A. B.; Morris, C. L.; Francis, J. M. [Illustrator]· 3 chapters· 7,406 words

MEDULLARY RAYS CONDUCT FOOD AND WATER RADIALLY, SERVE IN FOOD STORAGE PITH ANNUAL RINGS INDICATE GROWTH, NORMALLY ONE RING PER YEAR LEAVES THE AIR SUPPLIES CARBON, THE PRINCIPAL FOOD OF THE TREE, WHICH IS TAKEN IN ON THE UNDER SURFACE OF THE LEAVES. HEARTWOOD (INACTIVE CELLS)...

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Chapters

1. Part 1

MEDULLARY RAYS CONDUCT FOOD AND WATER RADIALLY, SERVE IN FOOD STORAGE PITH ANNUAL RINGS INDICATE GROWTH, NORMALLY ONE RING PER YEAR LEAVES THE AIR SUPPLIES CARBON, THE PRINCIPAL...

2. Part 2

Leaves: Compound, alternate; _leaflets_ 11 to 17, each 3″-5″ long, small-toothed; dark yellow-green above, paler, hairy below. End leaflet same size as side leaflets. Main _leaf...

3. Part 3

Fruit: A round “button-ball,” single or occasionally in 2’s on a tough slender stalk. These fruit clusters are light brown, 1″-1¼″ in diameter, consist of many seeds, each surro...