QuERcus. ,-- CUPULIFERyE. 191 



A tree 20-40 feet high and 8 - 15 inches in diameter (in the Southern States much larger), 

 with large irregular branches and a light gray bark. Leaves 4-6 inches long, rather thick 

 and coriaceous, of a dull green above, and grayish or somewhat rusty colored underneath ; 

 the upper lobes broad and nolched or obtuse : petioles tawny, 5-8 lines long. Acorns 

 usually numerous, nearly sessile, or 2 - 3 together on a peduncle : cup grayish, rather thin ; 

 the scales very small : nut half an inch long, more than one-third immersed in tiie cup. 



Sandy soils : Hempstead Plains, &c.. Long Island. Fl. May. Fr. September. The wood 

 of this species is pretty close-grained, of a yellowish color, and very durable. It is used for 

 posts, and is employed also by coopers and wheelwrights. In shipbuilding, it is used for the 

 knees of the frame. As a fuel, it is highly esteemed. 



9. duERCus MACROCARPA, Mlchx. (Plate CVIIL) Over-cup White Oak. 



Leaves deeply and somewhat lyrately sinuate-lobed, pubescent underneath , the lobes 

 obtuse, repand ; acorn very large ; cup hemispherical, fringed above ; nut ovoid, more than 

 half immersed in the cup. — Michx. Querc. t. 2 - 3, and fl. 2. p. 194 ; Pursh, fl. 2. p. 632 ; 

 Michx. sylv. 1. <. 4 ; Torr. compend. p. 359 ; Beck, hot. p. 330. 



Trunk 40 - 60 feet high : bark of the branches somewhat corky, in ridges. Leaves 6-12 

 inches or more in length, obovate in the outline : lobes obtuse and spreading ; the upper ones 

 larger and dilated. Acorns pedunculate, often larger than a pigeon's egg ; the cup con- 

 spicuously imbricated, and commonly fringed with soft filaments round the margin : nut one- 

 half or two-thirds immersed in the cup, rounded at the summit. 



Woods near Schenectady {Mr. Tuckerman) ; also on the islands of Lake Champlain 

 {Oakcs and Robbins), and probably on the New- York shores of the lake. Michaux states 

 that the wood is inferior to that of the White Oak ; but according to Pursh, it is excellent. 



10. QuERcus oLiv.(EFORMis, Michx. . ~~ Mossy-cup Oak. 



Leaves oblong, smooth, glaucous underneath, deeply and unequally sinuate-lobed ; cup 

 very deep, ciliate on the margin; nut elliptical -oval, three-fourths enclosed in the cup. — 

 Michx. f. sylv. 1. p. 32. t. 3 ; Pursh, fl. 2. p. 631 ; Torr. compend. p. 359 ; Beck, hot. 

 p. 330. 



A tree 60 - 70 feet high, with a spacious summit ; the smaller branches slender and 

 recurved : bark white and laminated. Acorns about an inch and a quarter long ; the length 

 about twice as great as the breadth : scales loose ; the upper ones terminating in flexible 

 filaments : nut somewhat pointed at each end {Michx. /.). 



Banks of the Hudson above Albany, and in the western part of the State {Michaux). A 

 very rare species, which I have never been able to detect in the State. Little is kno\vn 

 respecting the properties of the wood, but Michaux thinks it as good as that of the White 

 Oak. 



