198 POPULAK FLORA. 



85. OAK FAMILY. Order CUPULIFER^. 



Trees or shrubs, with alternate and simple straight-veined leaves, deciduous stipules, and 

 moncecious flowers ; the sterile flowers in slender catkins (or in head-like clusters in the 

 Beech) ; the fertile flowers surrounded with an involucre which forms a cup, bur, or bat^ 

 around the nut. 

 Fertile flowers scattered, or 2 or 3 together, their 



Involucre one-fluwtred, of luuny little scales, forming a cup around the base of the 



hard and roundisli nut or acorn (KIj^- lUJ), ( Quercus) Oak. 



Involucre containing 2 or 3 flowers, becommg a very prickly and closed bur enclos- 

 ing the nutp, and splitting into 4 thick pieces. 

 Kuts 1 to 3, roundish or flattish, thin-shelled, bterile catkins long, ( Casianea) Chestnut. 

 Nuts 2, sharply 3-angled. Sterile catkins like a head-like cluster, (Facjus) Beech. 



Involucre a leafy cup, lobed or torn at the end, longer than the bony nut, ( Conjlus) Hazel. 



Fertile flowers also collected in a kind of catkin. Nut small hke an akene. 



Involucre an open 3-lobed leaf, 2-flowered, ( Carpinus) Hornbeam. 



Involucre a closed bladdery bag, one-flowered, the whole catkin making a fruit like 



a hop in general appearance, {Osirya) Hup-Hoenbeam. 



Oak. Quercvs. 



* Acorn ripening the first year, therefore borne on shoots of the season: cups stalked, except in 



No. 2: kernel generally sweet-tasted. 



1. 0*'Ei:crp or Bur Oak. Leaves obovate, sinuate-pinnatifid, whitish-downy beneath; acorn 1' or 



li' long, in a deep cup with a mossy-fringed border. Q. macrocdrj^a. 



2. Post Oak. Leaves oblong, pale and rough above, grayish-downy beneath, pinnatifid, with 5 to 7 



blunt lobes; cup saucer-shaped, much shorter than the acorn. Small tree. Q. obiusiloba. 



3. White Oak. Leaves smooth when full grown, pale beneath, phinatifid; the lobes 5 to 9, oblong or 



linear, entire; cup much shorter than the oval or oblong acorn. Rich woods. Q. alha. 



4. Swamp Cite&tnut-Oak. Leaves obovate, whitish-downy beneath, coarsely and bluntly toothed 



or sinuate; cup thick, hemispherical, with stout or pointed scales; acorn oval, 1' long. Q. Primts. 



5. Yellow Chestnut-Oak. Leaves lance-oblong, or oblong, acute, whitish, but scarcely downy 



beneath, rather sharply and evenly toothed ; cup thin, and acorn smaller than in No. 4. Rich 

 woods. Q. Castanea. 



6. Chinquapin Oak. Much like No. 4, but a mere shrub, 2° to 6° high, with a thin cup and a smaller 



acorn. Sandy, barren soil. Q. pnnoides. 



* * Acorn ripening in the autumn of the second year; ripe fruit therefore on wood two years old, 



sessile: kernel bitter. 

 H- Leaves entire or nearly so, narrow. 



7. Live Oak. Leaves thick, evergreen, hoary beneath, oblong, small. Sea-coast, S. Q. mrens. 



8. \yrLLow Oak. Leaves light green, smooth, lance-linear, tapering, S'or4' long. S- & W- Q. Phelhs. 

 8. Shingle or Laupel Oak. Leaves shining above, rather downy beueath, lance-oblong, thickish; 



cup saucer-shaped; acorn globular. Common S. & W. Cj. i-mhncaHa, 



