864 



ARBORETUM ET FRUTICETUM BRITANNICUM. 



tree, in British gardens, even where the soil is good and the situation shel- 

 tered, may be considered as slower than that of the common oak ; but when 

 grafted on the common oak it grows freely, and ripens its shoots, so as soon 

 to form a handsome tree. 



9. Q. (A.) OLIVJEFO'RMIS Michx. The Olive-shape-fniitcd American 



Oak. 



Identification. Michx. Arb., 2. p. 32. ; N. Amer. Syl., 1. p. 32. ; Pursh F!. Amer. Sept. 2. p. 63*2. 



Synonyme. The mossy-cup Oak, Amer. 



Engravings. Michx. Arb., 2. t. 2.; N. Amer. Syl., 1. t. 3. ; and our Jig. 1571. 



Spec. Char., $c. Leaves oblong, smooth ; glau- 

 cous beneath ; deeply and unequally pin- 

 natifid, Fruit elliptic-ovate, on short 

 footstalks. Calyx cup-shaped, fringed, and 

 nearly covering the acorn. {Michx.) A 

 deciduous tree on the Hudson, and in 

 Genesee, but rare Height 60 ft. to 70 ft. ; 

 and, according to Michaux, with a spreading 

 head, and an imposing aspect. Introduced 

 1811. 



The bark is white and laminated ; but the 

 tree is chiefly remarkable for the form and 

 disposition of its secondary branches, which 

 are slender and flexible, and always inclined 

 towards the earth. The leaves are of a light 

 green above, and whitish beneath : they re- 

 semble those of the white oak in colour, but 

 differ from them in form ; being larger, and 

 very deeply and irregularly laciniated, with 

 rounded lobes, so different in shape, that it is 

 impossible to find two leaves that are alike. 

 In all probability only a variety of Q. alba. 



1571. Q. (a.) olivsefdrmh. 



I 1 10. Q MACROCA / RPA WHld. The large fruited American Oak. 



Identification. Willd. Sp. PL, 4. p. 433. ; Pursh, 2. p. 632. ; Michx. Quer., No. 2. 



Synonymes. The over-cup white Oak, Bur Oak, Amer. ; Chene S gros Glands, Chene fris<5, Fr. ; 



gross-fruchtige Eiche, Ger. 

 Engravings. Michx. Quer., No. 2. t. 2, 3. ; N. Amer. Syl., 1. t. 4. ; the plate of this tree in Arb. 



Brit., 1st edit., vol. viii. ; and our fig 1572. 



Spec- Char., Sec. Leaves downy 

 beneath, lyrate, deeply and sinu- 

 ately lobed ; the lobes obtuse and 

 spreading, and the upper one 

 much dilated. The calyx deep, 

 cup-shaped, scaly, and fringed 

 with bristles. Acorns thick and 

 ovate. (Willd.) A beautiful de- 

 ciduous tree, laden with dark 

 tufted foliage. Kentucky and 

 Tennessee. Height 60 ft. ' Intro- 

 duced in 1800. 



The leaves are larger than those 

 of any other American oak, being fre- 

 quently 15 in. long, and Sin. broad: 

 they are notched near the summit, 



and deeply laciniated below. The 1572 . Q , m8crocfi . n>a . 



acorns (fig. 1566.6), which are also 



larger than those of any other American species, are oval ; and enclosed for two 

 thirds of their length in a thick rugged cup, which is generally bordered along 



