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.) otivero’rmis Michr, The Olive-shape-fruited American 
Oak. 
Identification. Michx. Arb., 2. p.32.; N. Amer. Syl., 1. p.32.; Pursh Fl. Amer. Sept. 2, p. 632. 
Synonyme. The mossy-cup Oak, Amer. 
Engravings. Michx. Arb., 2. t. 2.; N. Amer. Syl, 1. t. 3.; and our fig. 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. (Michz.) <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 
181i. 
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 \ Ey 
impossible to find two leaves that are alike. 
In all probability only a variety of Q. alba. 
1571. Q. (a.) olive formis, 
* 10, Q. macroca’rpa Willd. 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.; Chéne a gros Glands, Chéne frisé, Fr. ; 
gross-fruchtige Eiche, Ger. 
Engravings. Michx. Quer., No. 2. t. 2, 3.; N. Amer. Syl., 1. t. 4.5 the plate of this tree in Arb. 
rit., lst edit., vol. viii. ; and our fig. 1572. 
Spec. Char., §c. 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 8 in. broad: 
they are notched near the summit, 
and deeply laciniated below. The 1672. @ areca: 
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 
1 
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