vinal] MECHANICAL AIDS IX MATURE-STUDY 73 



Smooth Sumach : smooth twigs ; red berries. 

 Poison Sumach: terminal bud; white berries; swamps. 

 Maple Family 



Rock Maple : twigs fork ; keys persist ; bud sharp, many scales. 

 White Maple: flaky bark; collateral buds; twigs curve up. 

 Red Maple: red twigs; collateral buds; usually swamps. 

 *Norway Maple : ridged bark; red, hairy buds; leaf-scars meet. 

 *Sycamore Maple: flaky bark; green buds; leaf -scars not meet. 

 *B ox Elder: green twigs; downy buds; leaf-scars V-shaped. 

 Soapberry Family 



*Horse Chestnut : large twigs, leaf -scars and sticky buds. 

 Lixdex Family 



*Linden : buds bright, 2-3 scales show ; twigs flat, zigzag. 

 Dogwood Family 



Flowering Dogwood: opposite leaf -scars; large flower buds. 

 Tupelo: horizontal branches; pith partitioned; lowlands. 

 Olive Family 



White Ash : leaf -scars concave; ridged bark. 

 Red Ash : downy twigs; upper margin leaf-scar not concave. 

 Black Ash: scaly bark; black buds. 

 Bigxonia Family 

 *Catalpa : three leaf-scars at node; bundle scars meet. 



*Commonly cultivated. 



Tansy 



Arthur Ketchim 



When by the roadsides, in the sun, 

 I see the tansy's gold aj d green, 

 I know that there in other days 

 Hearthstone and love and life have been. 



There is no need of other sign 

 To mark the years of labor spent; 

 For all the dream, for all the hope, 

 The tansy stands as monument. 



In green oblivion the home 



Is blotted out, and by the gray 



Worn fence that marked its garden ground 



The bitter tansy flowers are gay. 



