CUPULIFERAX. (OAK FAMILY.) : 425 
ers solitary or by pairs, peduncled, surrounded with numerous linear bracts and 
,& 4lobed involucre. Calyx of 4-5 subulate lobes. Ovary 3-celled, with two 
ovules in each cell. Styles 3, filiform. Nuts commonly 2, acutely 3-angled, en- 
closed in the soft-spiny 4-valved involucre. Cotyledons thick and fleshy. — 
Trees, with whitish bark, and straight-veined leaves expanding with the flowers. 
l. F. ferruginea, Ait. Leaves oblong-ovate or rhombic, acute, finely 
serrate, silky on both sides when young, when old only on the veins beneath; 
spines of the involucre short, recurved. — Damp sandy soil, Florida, and north- 
ward. April. — A large tree, with widely spreading branches. 
4. CORYLUS, Tour.  HazErNvr. 
“Sterile flowers in cylindrical pendulous bracted aments. Calyx 2-cleft, partly 
united with the bract. Stamens 8: anthers 1-celled. Fertile flowers clustered. . 
Ovary 2-celled, 2-ovuled. Stigmas 2, filiform. Involucre tubular at the base, 
leafy and lacerated at the summit, enclosing a single bony (edible) nut. — Shrubs, 
with broadly cordate doubly serrate petioled leaves. Flowers appearing before 
the leaves. 
1. C. Americana, Walt. (Hazkr-NuT. Branchlets glandular; leaves 
round-cordate, coarsely serrate, acuminate, pubescent; involucre roundish at the 
base, dilated and flattened above the nut, glandular hairy; nut roundish, some- 
what flattened. — Rich soil along the margins of woods and thickets, West Flor- 
ida, and northward. Feb. and March. — Shrub 5°- 6° high, tough and flexible. | 
Leaves 4!-6! long. 
2. C. rostrata, Ait (Beaxep HAZEL-NUT.) Branchlets smooth; leaves 
ovate or oblong-ovate, slightly cordate, acuminate, finely serrate, rather thin, 
pubescent ; involucre bristly, prolonged into a tube above the nut, 2-cleft and 
toothed at the summit ; fruit nearly globular. — Rich soil in the upper districts, 
and northward. March- April. — Shrub 4° - 6° high. 
5. CARPINUS, L. Hozxnzraw. 
Flowers destitute of floral envelopes, supported by scale-ike bracts. Sterile 
flowers in drooping cylindrical aments. Stamens 8 — 14 : filaments short: an- 
thers l-celled, hairy at the apex. Fertile flowers spiked. Bracts 2-fiowered, 
deciduous. Ovary 2-celled, 2-ovuled. Stigmas 2, filiform. Nut solitary, an- 
gular, sessile in the axil of an open 3-lobed leaf-like involucre.— Trees, with 
Simple ovate or oblong straight-veined deciduous gua en in the bud. 
| expanding before the leaves. 
du 5 Americana, Michx. (HORNBEAM.) firanchiets smooth and slen- 
der; leaves oblong-ovate, acute or slightly acuminate, sharply and doubly ser- 
rate, rounded at the base, more or less pubescent, Fertile spikes terminal, 
led, 6 - 12-flowered ; involucre unequally 3-lobed, the middle ME MY 
longer and serrate on one side; nut small, ovate, con 
woods, Florida, and northward. Micke wid 
