GLOSSARY 475 



Deciduous. Not persistent; not evergreen. 



Decurrent (leaf). Extending down the stem below the insertion. 



Definite. Of a constant number, not exceeding twenty. 



Dehiscence. The mode of opening ; applied especially to fruits and anthers. 



Dehiscent. Opening regularly by valves, slits, etc., as a capsule or anther. 



Dentate. Toothed, usually with the teeth directed outward. 



Denticulate. Minutely dentate. 



Depressed. Somewhat flattened from above. 



Diaphragm. The woody tissue which interrupts the pith at the node in a 



grape-vine. 

 Diffuse. Widely or loosely spreading. 

 Digitate. Compound, with the members arising together at the apex of the 



support. 

 Dioecious. Unisexual, with two kinds of flowers on separate plants. 

 Dissected. Cut or divided into numerous segments. 

 Distinct. Separate; not united; evident. 

 Divaricate. Widely divergent. 

 Divided. Lobed to the base. 

 Domestication. The state or condition of being adapted or inured to 



cultivation, or the act of adapting or inuring to cultivation. 

 Dorsal. The back or outer surface of an organ. 

 Drupaceous. Resembling a drupe. 

 Drupe. A fleshy or pulpy fruit wdth the inner portion of the pericarp 



(1-celled and 1-seeded, or sometimes several-celled) hard or stony. 

 Drupelet. A diminutive drupe. 



Echinate. Beset with prickles. 



Elliptical. Applied to oblong leaves which gradually taper both ways 



from the middle. 

 Emarginate. Having a shallow notch at top. 

 Embryo. The rudimentary plantlet within the seed. 

 Endocarp. The inner layer of a pericarp. 

 Entire. Without toothing or division. 

 Environment. The sum of the physical conditions in which an organism 



lives. 

 Epicarp. The outer layer of the pericarp or matured ovary. 

 Epidermis. The superficial layer of cells. 

 Exfoliating. Cleaving off in thin layers. 

 Exocarp. Outer layer of a pericarp. 



Exserted. Projecting beyond an envelope, as stamens from a corolla. 

 Extrorse. Facing downward. 

 Eye. The calyx of a pome-fruit; a compound bud of a grape. 



Family. A natural assemblage of plants placed together because of 



resemblances. 

 Farinaceous. Containing starch; starch-like. 

 Farinose. Covered with a meal-like powder. 

 Fascicle. A close bundle or cluster. 

 Fasciculate. In close bundles or clusters. 

 Fastigiate (branches). Erect and near together. 

 Female. Fertile; pistillate. 



