124 



SILVA OF NORTH AMERICA, juglandace^. 



face of the ground; and, although injured by lightning in 1878, is a size ; but the Black Walnut often suffers there from spring frosts 



still in a healthy and vigorous condition. (See Dame & Brooks, in its early years, and produces wood so slowly that European f or- 



Typical Elms and other Trees of Massachusetts ^ 68, t. 43.) esters do not recommend it for general forest planting. (See Mayr, 



Specimens of Juglans nigra at least a century old may occasion- Die Wald, Nordam, 151, t. 4, f - — R, Hartig, AusL Holz, hayer. 



ally be seen in central and southern Europe. Few other North Staatswald, 35 [Forst-nat. Zeit, 1892].) 

 American deciduous-leaved trees have grown in Europe to so large 



EXPLANATION OF THE PLATES. 



Plate CCCXXXIIL Juglans nigra. 



1. A flowering branch, natural size. 



2. A staminate flower before anthesis, enlarged. 



3. A staminate flower, enlarged. 



4. Perianth of a staminate flower displayed, enlarged^ 



5. A stamen, enlarged- 



6. A pistillate flower, enlarged. 



7. Vertical section of a pistillate flower, enlarged. 



8. A leaf, reduced. 



9. A winter branchlet, natural size. 



Plate CCCXXXIV. Juglans nigra 



1. A fruiting branch, natural size. 



2. A nut, natural size. 



3. Cross section of a nut, natural size. 



