IIG 



SILVA OF NORTH AMEBIC A 



CUPULIFERiE 



shaped 



more 



deeply cup-shaped, light brown and piiberulous within, and covered 



by thin ovate-oblong- closely appressed red-brown 



ded at the apex and glab 



or coated with soft pale silky pubescence.^ 



Quercus inimlla inhabits sandy barren soil in the immediate neighborhood of the coast from North 

 Carolina to northeastern and western Florida. 



Stunted by fires which every spring sweep over the region that it inhabits, destroying the growth 

 of the previous year, the Running Oak is usually dependent on an annual growth for its existence, and 

 is able only under exceptionally favorable conditions of location to grow to its full size. 



^ Two forms of this shrub, distinct in appearance but so couuected broad and flat, and covered by closely appressed glabrous light 



by intermediate forms that they must be considered merely varie- brown scales dark red-brown above the middle. On the second 



ties of one species, grow together at Bluff ton, South Carolina, in form (Quercus sericea, Willdenow, Plate cccciv. f. 4, 6) the young 



the same thickets and intermingled in such a way that it is difficult branchlets and leaves are coated with hoary tomentum, the lower 



to decide that they have not sprung from the same root. On the surface of the mature leaves is clotlied with silky pubescence, and 



first (Quercus pumila of Walter and Engelmann, Plate cccciv. f. 5, the cups of the acorns, which vary from saucer-shaped to deeply 



7) the young branches and leaves are stellate-pubescent but soon cup-shaped and sometimes inclose two thirds of the nut, are covered 



become glabrous, and the cups of the acorns, which mature two or by more loosely imbricated scales clothed with pale silky pubes- 



than 



cence. 



EXPLANATION OF THE PLATE. 



Plate CCCCIV. Quercus pumila. 



1. A flowering branch, natural size. 



2. A staminate flower, enlarged. 

 3o A pistillate flower, enlarged. 



4. A fruiting branch, natural size. 



5. A fruiting branch, natural size. 



6. A fruit, natural size. 



7. A fruit, natural size. 



8. A leaf from the base of a vigorous shoot, natural size 



9. A leaf of a vigorous shoot, natural size. 

 10. A leaf of a vigorous shoot, natural size. 



