MANUAL OF NATUKAL HISTORY. 481 



celled ; seeds pendulous. A single Japanese 

 genus, with but one known species. 

 2. Family. — Garryads (Garryacese). Shrubs ; 

 leaves opposite, exstipulate ; flowers in pen- 

 dulous, amentaceous racemes ; wood without 

 distinct zones ; male perianth 4-partite ; fe- 

 male perianth superior, 2-toothed ; stamens 

 four, alternate with segments of perianth ; 

 ovary 1 -celled ; ovules two, pendulous ; styles 

 two ; fruit baccate, indehiscent ; seeds two. 

 Natives of North America and the West 

 Indies. 



V. ORDER. — Quernals (Quernales). 



Male flowers amentaceous, monochlamydeous ; 

 fruit inferior ; embryo amygdaloid ; albumen none. 



1. Family. — Walnuts (Juglandaceee). Trees ; leaves 



alternate, not dotted, exstipulate ; flowers her- 

 baceous, inconspicuous ; male flowers amen- 

 taceous ; perianth membranous, irregularly 

 lobed ; stamens 3 or 00; anthers erect, 2- 

 celled ; female flowers in terminal clusters or 

 loose racemes ; perianth single or double, the 

 outer 3-5-partite ; ovary adherent, 1 -celled ; 

 ovule erect, orthotropal ; styles 1-2 ; stigmas 

 2-4, unequal ; fruit drupaceous, sometimes 

 with an adherent involucre. Chiefly North 

 American, but a few inhabit Persia, and the 

 East and West Indies. Afford the black and 

 common walnuts, and hickory wood. 



2. Family. — Oaks (Corylacese). Trees or shrubs ; 



