KEY TO SPECIES 287 
a2. Light and soft. Color of heartwood light 
redCish brown, sapwood thin and ivory 
white. 
BUTTERNUT—Juglans cinerea 
6. Pores all minute and indistinct; most numerous 
In spring wood, causing a lighter colored zone 
or line appearing sometimes like a ring-porous 
wood, heartwood reddish; pith rays very 
fine but very distinct. Wood hard, taking 
a fine finish. 
BLACK CHERRY—Prunus serotina 
c. Pores minute or indistinct, neither larger nor more 
numerous in the spring wood; evenly dis- 
tributed. 
cl. Broad pith rays present. 
al. All or most pith rays broad, numerous and 
crowded, especially tangential sections, 
medium heavy and hard, difficult 
to split. 
SYCAMORE—Platananus occidentalis 
bl. Only part of pith rays broad, well defined, 
quite numerous. Wood reddish white 
to reddish. 
BEECH—Fagus americana 
c2. No pith rays present. 
al. Wood hard. Color reddish white with 
dark reddish tinge in outer summer 
wood. 
MAPLE 
a2. Most of pith rays broader than the pores 
and very conspicuous. 
HARD OR SUGAR MAPLE—Acer saccharum 
62. Pith rays rarely broader than the pores, 
fine but conspicuous, wood light 
colored. 
SOFT MAPLE—Acer saccharinum 
