CHAP. CV.

COllYLA'CEHC.

que'rcus.

1945

above, covered with fine yellow tomentum beneath. Male catkins aggregate, situated beneath thefemale flowers. Male flower: calyx 5-toothcd, stamens 6, anthers ovate, pollen yellow. Fe-male flowers 4-6, sessile, on the apex of a peduncle about \ in. long. Female flower : ovary globose;styles or stigmas 5, red, thick. A native of New Spain, between Moran and Pachuca. Q. chryso-phflla, as well as the preceding species, is found forming entire forests between Moran and Pa-

chuca, at an elevation of 8400ft. (1400 toises). .It is re-markable, on account of the position of its female flowers,which are placed under the male flowers; and also for thebeautiful 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 treeis remarkable for the thinness of its foliage.

Q. pulchttla Humb. et Bonp. PI. iEquin., t. 88., andour Jig. 1866., Michx. N. Amer. Syl., 1. p. 110. Leavesoblong, obtuse; emarginate at the base; covered withwhite down beneath; teeth short,mucronate. Fruitses-sile, almost solitary. {Humb. et Bonp.) A shrub from 12 ft.to 18 ft. high, with a trunk about 2ft. in circumference, and a smooth bark. Branches alternate,round, covered with tubercles, or callous dots. Leaves crowded towards the tips of the branches ;l£in. to 2in. long, on longish footstalks, leathery, wavy on the margin; shining above, rcticu-lately veined and co-vered with whitedown beneath. Fe-male flowers axil-lary, solitary,or twin.

’ Cup spherical. Scalesroundish-oval, close-ly imbricated; ex-ternally downy onthe back, membrana-ceous. Nut ovate,scarcely longer thanthe cup. A native ofthe mountainous re-gion of New Spain,between Guanajuato and Santa Rosa, atan elevation of 8400ft, (1400 toises). Ithas 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 ;

P 1 p \ r being cut in their petioles, and, lastly, in the size ofus fruit, which are larger than in Q. siderdxyla.

spicata Humb. et Bonp. PI. iEquin., t. 89,, and our Jig.j /•» Michx. N. Amer., 1. p. 111. Leaves elliptic oruovate, emarginate at the base, remotely toothed, downy be-4*11' female spike on a long footstalk. {Humb. ct Bonp.)

A tall tree, from 30ft. to 40ft. high. Branches and youngs. a X® s c °vered with clusters of down. Leaves on short foot- ~s .* somewhat wedge-shaped, oboval, or for the most part*P* 1C > roundish-obtuse ; glaucous and shining above, to-rarpm! e b ®!^ ath 3 and, in some, reticulately veined, downy. Female flowers in spikes or sessiledownv ^ ' nct Cu P hemispherical. Scales closely imbricated, oblong, blunt, externally convex,elPva*;^ A native of shady situations in the mountain of Nabajas, in Mexico , at an

Vee 5.1 tK ^ to 9300 ft. (1487 to 1590 toises). It appears allied to Q. eltiptica, described by

in fhl „ An ™e$de las Ciencias Naturales , 1801. The leaves are not entire, but are denticulatedaceon? u PP er half: they are furnished with short thick footstalks, membranaceous, and not cori-iib, ana, instead of being almost sessile, they are supported on long footstalks,n mo P x ns Humb - et Bon P* ^quin.,t. 90., and our Jig. 1868., Michx. N. Amer. Syl., 1.eaves oboval, sharply toothed towards the point; teeth terminated by mucros; covered on

1866