GLOSSARY. 295 



Cymes. A flower cluster in which the central flowers open first. 



Deciduous. Falling off; said of leaves that fall in autumn. 



Dehiscent. Said of fruits that open at regular lines. 



Dentate. Toothed, with teeth pointing outward not forward. 



Diadelplious. Said of stamens when united into two groups. 



Dibber. A pointed instrument used for making holes. 



Dicotyledon. One of the class of plants with two seed leaves. 



Dicotyledonous. Having two cotyledons or seed leaves. 



Diuecio'us. Staminate and pistillate flowers borne on different 



plants. 

 Divided. Said of leaves when the wings are cut into divisions down 



to base or midrib. 

 Disision. See bud-division. 

 Drupe. A fruit with hard pit (endocarp) and soft exterior (exocarp). 



(e. g. Plum. Cherry, Peach.) 

 Dry-rot. A kind of decay in wood. (Page 72.) 

 Dust-blanket. A layer of loose earth on the surface of the ground. 

 Embryo. The miniature plant 'in the seed. 

 Evergreen. Holding leaves over winter until new leaves appear or 



longer. 



Family. In botanical classification, a group of plants thrown to- 

 gether because of some natural common resemblances. Some- 

 times used synonymously with order. 

 Filament. The stalk of the stamen. 

 Firebreak. An opening, plowed strip of land, or anything which 



prevents the spread of fires in forests or elsewhere. (Fig. 33.) 

 Firefalls. Applied to areas where the trees have fallen owing to 



their roots having been burned off. 

 Flower. A part of the plant especially modified for the reproduction 



of the plant by seed. 

 Forest. A dense growth of trees. 

 Forest floor. The decayed leaves and twigs which cover the soil in 



forests. (Page 18.) 

 Frost-hardy. Said of trees, the new growth of which is not easily 



killed by frost. 

 Frost-tender. Said of trees, the new growth of which is easily killed 



by frost. 



Fruit. The seed-containing area derived from a single flower. 

 Fungi. Plural of fungus. 

 Fungous. Pertaining to fungi. 

 Fungus. A flowerless plant devoid of chlorophyll and drawing its 



nourishment from living organisms or decayed organic matter. 

 Genera. Plural of genus. 



