512 ORDER CXVI. JUGLANDACEJS. 



irregular branches. Leaves lanceolate, oblong, mucronate, serrate, gla- 

 brous when old. Arnents of the sterile flowers axillary ; florets in clus- 

 ters ; fertile spikes short, 2 or 3 together. Style 1. Stigmas numerous. 

 Involucre spinous. — ^ . May — June. Dry woods. 60 — 70 feet. 



Chestnut. 



2. C. pu'mila, (L.) A shrub or small tree. Leaves oblong, serrate, 

 mucronate, tomentose beneath. Fertile florets generally one in each 

 involucre. Nut small, inclosed in a spiny involucre. — *>'. May. In 

 light soils. 15 — 20 feet. Chinquapin. 



3. C. na'na, (Muhl.) A small shrub. Leaves oval-lanceolate, obtuse, 

 serrate, mucronate, shining on the upper surface, slightly tomentose 

 beneath. It agrees nearly with the preceding species, except in size. — 

 ^ . May. Sandy pine-barrens. 2 — 4 feet. 



Genus XIII.— COR' YLUS. L. 19—12. 

 (From the Greek korus, a helmet, from the calyx inclosing the fruit.) 



Monoecious. Sterile florets ; ament cylindrical ; scales 3- 

 cleft. Stamens 8. Fertile florets ; ovaries several. Stigmas 2. 

 Nut ovate, surrounded with the enlarged coriaceous and scaly- 

 involucre. 



1. C. America'na, (Walt.) A small shrub, with erect, virgate 

 branches, pubescent when young. leaves oblong-ovate, cordate, acu- 

 minate, pubescent on the under surface. Involucre roundish, campanu- 

 late, with the border dilated and many-cleft. Nut large, ovate. — T <> . 

 March — April. Shady woods. 4 — 8 feet. Hazel-nut. Wild Filbert. 



2. C. eostra'ta, (Ait.) A small shrub. Leaves oblong-ovate, acumi- 

 nate, slightly cordate, on short petioles, doubly serrate, pubescent be- 

 neath. Involucre somewhat globular, hirsute, 2-parted at the summit, 

 with incised segments. — ^. March — April. Mountains. 2 — 4 feet. 



Beaked Hazel-nut. 



Genus XIV.— FA'GUS. L. 19—12. 

 (From the Greek phago, to eat ; the nuts were used as food.) 



Monoecious. Sterile florets ; ament globose ; perianth 6-cleft. 

 Stamens 5 — 12. Fertile florets 2, within a 4-lobed prickly in- 

 volucre ; perianth with 4 — 6 minute lobes. Ovaries 3-celled, 

 2 of them abortive. Styles 3. Nut 1 -seeded, inclosed by the 

 involucre. 



1. F. Sylvat'ica, (L.) A large tree. Leaves ovate, acuminate, cili- 

 ate, slightly toothed, on short petioles. Involucre persistent. Seed tri- 

 quetrous. — \. March — April. Damp rich soils. 50 — 60 feet. Beech. 



Order CXVL— JUGLANDA'CEiE. (Walnut Family.) 



Flowers monoecious. Sterile florets in an ament. Perianth 

 oblique, membranous, scaly, irregularly lobed. Stamens 3 — 

 36, inserted on the receptacle. Filaments short. Anthers 2- 

 celled. Fertile florets with the perianth 4 — 6-parted. Ovary 



