CHAP. CV. 



CORYLA CF.JF.. QUE TUTS. 



1945 



above covered with fine yellow tomentum beneath. Male catkins aggregate, situated beneath the 

 female flowers Male flower: calvx 5-tOOthed, stamens fi, anthers ovate, pollen yellow. fe- 

 male flowers 4-ti, sessile, on the apex of a peduncle about * in. long. Female (lower : ovarv globose ; 

 styles or stigmas 5, red, thick, A native of New Spain, between Moran and Pachuca. Q. cnryso. 

 phylla, as well as the preceding species, is found funning entire forests between Moran and la- 



■^;> 



ehuca, at an elevation of 8400 ft. (1400 toises). It is re- 

 markable, on account of the position of its female flowers, 

 which are placed under the male flowers ; and also tor the 

 beautiful golden colour of the under surface of the leaves ; 

 a peculiarity which distinguishes it from every other de- 

 scribed species of oak. Michaux mentions that this tree 

 is remarkable for the thinness of its foliage. 



Q pulchSlla Humb. et Bonp. PL iEquin., t. 88., and 

 our fig. 1866., Michx. N. Amer. Syl., 1. p. 110. Leaves 

 oblong, obtuse; emarginate at the base; covered with 

 white down beneath; teeth short, mucronatc. Fruit ses- 

 sile, almost solitary. {Hvmb. et Bonp.) A shrub from 12 it. 

 to 18 ft high, with a trunk about 2 ft. in circumference, and a smooth bark. Branches alternate 

 round covered with tubercles, or callous dots. Leaves crowded towards the tips of the branches 

 14 in. to 2 in. long, on longish footstalks, leathery, wavy on the margin; shining above, reticu- 

 a. lately veined and cc- _^ 



MfflL vered with white 



lYJ down beneath. Fe- 



| f male flowers axil- 



lary, solitary,or twin. 

 -•; "-^y* Cup spherical. Scales 

 b, roundish-oval, close- 



ly imbricated; ex- 

 ternally downy on 

 the back, membrana- 

 ceous. Nut ovate, 

 scarcely longer than 

 the cup. A native of 

 the mountainous re- 

 gion of New Spain, 

 between Guanajuato 

 and Santa Rosa, at 

 an elevation of 8400 

 ft., (1400 toises). It 

 lias considerable af- 

 finity with Q. side- 

 roxyla (p. 1943.1 ; but 

 it differs in its height 

 and habit of growth; in the form and consistency of its leaves ; 

 in their being cut in their petioles, and, lastly, in the size of 

 its fruit, which are larger than in Q. sidcroxyla. 1867 



Q. spiedta Humb. et Bonp. PI. iEquin., t. 8!)., and our fig. 

 1867., Michx. N. Amer., 1. p. 111. Leaves elliptic or 

 obovate, emarginate at the base, remotely toothed, downy be- 

 neath. Female spike on a long footstalk. (H/wib. et Bonp.) 

 A tall tree, from 30 ft. to 40 ft. high. Branches and young § 

 leaves covered with clusters of down. Leaves on short foot- ~~ 

 stalks, somewhat wedge-shaped, oboval, or for the most part 

 elliptic; roundish-obtuse; glaucous and shining above, to- 

 mentose beneath ; and, in some, reticulately veined, downy. Female flowers in spikes or sessile 

 racemes, distinct. Cup hemispherical. Scales closely imbricated, oblong, blunt, externally convex, 

 downy. Nut ovate. A native of shady situations in the mountain of Nabajas, in Mexico, at an 

 elevation of 9000 ft. to 9500 ft. (1487 to 1590 toises). It appears allied to Q. elliptica, described by 

 Nee in the Annies dc las Ciencias Naturales, 1801. The leaves are not entire, but arc denticulated 

 in the upper half: they are furnished with short thick footstalks, membranaceous, and not cori- 

 aceous ; and, instead of being almost sessile, they are supported on long footstalks. 



Q. stipuld.ris Humb. et Bonp. PI. JEquin., t. 90., and our fig. 18(18., Michx. N. Amer. Syl., 1. 

 p. 109. Leaves oboval, sharply toothed towards the point; teeth terminated by mucros ; covered on 



1866 



