I2C4 ^^^ Trees of Great Britain and Ireland 



QUERCUS CRASSIPES 



Quenus crassipes, Humboldt and Bonpland, PL ^quin. ii. 37, t. 83 (1813) ; Loudon, Arb. et Frut. 



Brit. iii. 1943 (1838); De Candolle, Prod. xvi. 2, p. 73 (1864) j Hemsley, Biol. Cent. 



Amer. Bot. iii. 170 (1882). 

 Quercus mexicana, Bentham, PL Hartw. 56 (1839) (not Humboldt and Bonpland). 



A tree of moderate size. Young branchlets slender, covered with a dense 

 minute pubescence. Buds minute, globose. Leaves (Plate 335, Fig. 24) 

 coriaceous, persistent for two years, 2 to 3 in. long, i to | in. wide; oblong; 

 rounded or acute at the apex, which usually bears a short mucro or bristle ; rounded 

 or subcordate at the base ; entire or rarely undulate in margin ; upper surface dark 

 green, papillose, glabrescent ; lower surface grey or brownish tomentose ; lateral 

 nerves about 20 pairs, dividing and looping before reaching the margin; petiole 

 \lo\ in. long, densely pubescent. 



Fruit ripening in the second year, solitary or in pairs, on short stout stalks ; 

 acorn ovoid, surrounded about half its length by a turbinate cupule, ^ to f in. in 

 diameter, covered with appressed slightly pubescent ovate scales. 



This species was discovered by Humboldt near Santa Rosa and Ario in 

 southern Mexico, at 6000 to 8000 ft. elevation, and was said to be a small tree 

 about 20 ft. high, with smoothish grey bark. It was also collected by Hartweg at 

 Tlalpujahua, and found by Bourgeau in the valley of Mexico. 



It was raised^ in 1839 in the Chiswick Garden of the Horticultural Society 

 from acorns collected by Hartweg near Real del Monte. 



The only specimen which we know to be now living in this country, is an 

 unhealthy tree at Carclew, 64 ft. by 5 ft. 4 in. in 1908. A small tree of this species 

 is cultivated in M. Allard's arboretum at Angers, where it is labelled Q. crassifolia. 

 A specimen in the Kew Herbarium, collected by Gay at Leroy's nursery. Angers, 

 in 1847, is labelled Q. confertifolia. (A. H.) 



QUERCUS CERRIS, Turkey Oak 



Quercus Cerris, Linnaeus, Sp. PL 997 (1753); Loudon, Arb. et Frut. Brit. iii. 1846 (1838); 



Willkomm, Forstliche Flora, 421 (1887) ; Mathieu, Flore Forestiire, 363 (1897). 

 Quercus crinita, Lamarck, Encyc. i. 718 (1783). 

 Quercus echinata, Salisbury, Prod. 393 (1796). 



A tree attaining 120 ft. in height and 20 ft. in girth. Bark thick, greyish, 

 divided by vertical and horizontal fissures into oblong rounded ridges. Young 

 branchlets covered with a dense grey tomentum, retained in part in the second year. 

 Buds (Plate 78, Fig. 3) ovoid, with a few pubescent ovate-acuminate scales, and 



^ Cf. Gordon, in Loudon, Gard. Mag. xvi. 636 (1840). 



