870 ARBORETUM ET FRUTICETUM BRITANNICUM. 



1583. Q. coccinea. 15SI. Q. coccinea. 



crimson, or pur|)lish red. The leaf also bears a greater resemblance to tliat 

 of Q. palustris than anj' other species. 



3f 16. Q. ambi'gua IVi/ld. The ambiguous, or grey. Oak. 



Identification. Michx. North Atner. Syl., 1. p. 98. ; Pursh Sept., 2. p. 630., not Humboldt. 

 Synonyme. Q. borealis Michx. N. Amer. Syl. 1. p. 98. 



Engravhigs. Miclix. Arb., t. 24. ; N. Amer. Syl., 1. t. 26. ; the plate of this tree in Arb. Brit, Ist 

 edit., vol viii. ; and our jig. 1585. 



Spec. Char., <5rc. Leaves sinuated, glabrous, acute at the base ; sinuses some- 

 what acute. Cup somewhat shield-shaped. Nut roundish-ovate. (Mickx.) 

 A large deciduous tree. Nova Scotia to Lake Champlain. Height 40 ft. 

 to 60 ft. Introduced in 1800. 



This species bears a close analogy to 

 the red oak in its foliage, and to the 

 scarlet oak in its fruit. It has also another 

 peculiarity in blossoming every year, though 

 it takes two, three, and in very cold 

 climates four, years to mature its fruit. 

 The leaves are large, smooth, and deeply 

 sinuated; the indentations being sharper \^ 

 and more angular than those of the leaves of 

 Q. coccinea. The acorns are of the middle 

 size, rounded at the end, and contained in 

 scaly top-shaped cups= The grey oak is 

 found farther north than any other Ame- 

 rican species, and it therefore would seem 

 to be the best adapted for being cultivated in Britain as a useful tree. The wood 

 is as coarse and open in its pores as that of the red oak ; but it is stronger 

 and more durable. 



1585. Q. ambigua. 



Q. FALCA^TA Michx. The Sickle-shaped, or Spanish, Oak. 



aj 17. 



Identification. Michx. Quer., No. 16. ; Pursh Fl. Amer. Sept., 2. p. 631. 



Synoni/mes. Q. discolor Ait. Hort. Kew. ed. 1. 3. p. 358. ; Q. elongita Willd. Sp. PL 4. p. 444. : 



Q. lyr&ta T.orid. Cat. 1836; Q. cuneita Wang.; Q. triloba IVilld., Michx. Quer. 14. No. 26. ; fl. 



cuncata Wang., Furst. ; the downy-leaved Oak. 

 Engravings. Michx. Quer., t. 28. ; N. Amer. Syl., 1. 1. 23. ; and out figs. 1586. and 1587. 



Spec. Char., Sfc. Leaves downy beneath, sinuated with three or more some- 

 what falcate bristle-pointed lobes ; the terminal one elongated and jagged. 

 Calyx hemis[)herical. ( Willd.) A large deciduous tree. Canada to Georgia. 

 Height 30 ft. to 80 ft. Introduced in 1763. 



This oak is a very remarkable one, from the great difference which exists in 



iC 



