Trees of New York State 419 



Coriaceous. Leathery. 



Corolla. The inner, usually l)right-("(ilored portion of the perianth; the inner 



floral envelop of a flower. 

 Cortex. Rind; bark. 



Corymb. An indetenninato flat-topped flower cluster. 

 Cotyledons. The foliar portions or first leaves of the embryo as. found in the 



seed. 

 Crenate. Scalloped ; serrate with rounded teeth. 

 Crenulate. Diminutive of crenate. 

 Crown. The expanded top of a tree or shrub consisting of branches and 



hranchlets. 

 Cruciate. Cross-shaped. 

 Cuneate. Wedge-shaped. 

 Cuneiform. Wedge-shaped. See Cuneate. 

 Cuspidate. Tipped with a cusp or sharp and ridgld point. 

 Cyme. A broad and flattish flower-cluster of the determinate type. 

 Cymose. C\me-like, or borne in a cyme. 



Deciduous. Subject to fall in season; not evergreen. 



Declined. Sloping downwards. 



Decompound. More than once compound or divided. 



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



Decussate. Alternating in pairs at right angles. . 



Dehiscent. Opening at maturity to release the seed. 



Deliquescent. Dissolving or melting away. Said of a stem which divides into 

 branches. 



Deltoid. Shaped like an equilateral triangle. 



Dentate. Toothed, with the teeth directed outward. 



Denticulate. Diminutive of dentate. 



Depressed. Somewhat flattened from above. 



Determinate inflorescence. An inflorescence the primary axis of which is ter- 

 minated by a flower. 



Diadelphous (stamens). Combined in two sets. 



Diaphragmed. Divided into chambers by cross partitions. 



Diaphragmed-stuffed. Diaphragmed vdth filled chambers. 



Dichotomous. Forking regularly by pairs. 



Dicotyledonous. Having two cotyledons. 



Didynamous (stamens). Two pairs of imequal length. 



Dioecious. Unisexual, with the stjiminate and pistillate flowers on separate 

 plants. 



Disk. A development of the receptacle at or around the base of the pistil. 



Divergent. Proceeding in different directions from each other or from a point 



Drupaceous. Drupe-like, or of the nature of a drupe. 



Drupe. A fleshy fruit with a bony endocarp enclosing the seed. 



Ebracteolate. Without bractlets. 



Echinulate. Beset with diminutive prickles. 



Eglandular. Without glands. 



Ellipsoid. A solid obtained by rotating an ellipse on its long axis. 



Ellipsoidal. Resembling an ellipsoid. 



