276 American Midland Naturalist Monograph No. 2 



Corymbose (corymbiform). Like a corymb. 



Creeping (stem). Growing along the surface of the ground and rooting from the nodes. 



Crenate. Toothed with rounded shallow teeth. 



Crenulate. Finely crenate. 



CucULLATE. Hooded, or hood-shaped. 



CuNEATE. Wedge-shaped; broad at one end and tapering to a point at the other. 



Cuspidate. Sharp-pointed; ending in a sharp point or cusp. 



Cyme. A convex or flat flower-cluster of the determinate type, the central flowers 



opening first. 

 Cymose. Arranged in cymes; cyme-like. 



Deciduous. Falling off at maturity, or at the end of the season. 



Declined. Bent downward or aside; applied to stamens or style when turned to one 



side of the flower. 

 Decompound. More than once compound. 

 Decumbent (stem). Reclining, but with apex ascending. 

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

 Deflexed. Deflected, or turned abruptly downward. 

 Dehiscent. Splitting open along definite lines at maturity. 

 Deltoid. Triangular, shaped like the Greek letter /\, as in the leaves of species of 



poplar. 

 Dentate. Coarsely toothed, with the teeth directed outward. 

 Denticulate. Minutely dentate. 

 Determinate (inflorescence). One in which the terminal flower is the oldest and 



therefore the first to open, the order of flowering proceeding from the top down- 

 ward. 

 Diadelphous. Having the stamens united by their filaments in two sets, as in almost 



all papilionaceous flowers. 

 Diffuse. Loosely spreading or branching. 

 Dimorphous. Occurring in two forms. 



Dioecious. Having the staminate and pistillate flowers on different plants. 

 Discoid. Resembling a disk; a discoid head (in Compositae) is one without ray-flowers. 

 Disk. A development of the receptacle about the base of the pistil ; the common 



receptacle of the heads of Compositae. 

 Dissected. Divided into many narrow segments. 



Distinct. Separate; not united with parts of the same series; not connate. 

 Divaricate. Spreading; widely divergent. 

 Divided. Separated to the base or to the midvein. 

 Drupe. A succulent mdehiscent fruit with a bony, usually one-seeded endocarp; a 



stone-fruit, like a plum. 

 Drupelet. A little drupe, such as the individual carpels which together form the 



blackberry and similar fruits. 



EcHINATE. Beset with prickles or bristles. 



Ellipsoid. A solid body elliptical m longitudinal section. 



Elliptical. Having the form of an ellipse; nearly oblong. 



Emarginate. Deeply notched at the apex. 



Endocarp. The inner layer of the pericarp. 



Entire. With smooth margins, not toothed or lobed. 



EpigyNOUS. Borne on the ovary; applied to petals and stamens when the ovary is 



inferior. 

 Epipetalous. Borne upon the corolla. 

 Episepalous. Borne upon the calyx. 

 Equitant. Said of conduplicate leaves which alternately enfold each other as in Iris, 



the upper part of the leaf being flat and vertical. 

 Erose. With jagged margin, as if gnawed. 

 Evanescent. Passing away; soon disappearing. 

 Evergreen. Remaining green in Its dormant season; applied to plants whose leaves 



are green throughout the year. 

 Exfoliating. Peeling off in thin layers. 



