[374] North American Trees 



Bud scales. Modified leaves covering a bud. 



Bundle {leaf). Strand of fibro-vascular tissue found in cross section 

 of leaf. 



Caducous. Falling off very early. 



Calyx. The flower-cup or exterior part of a perianth. 



Campanulate. Bell-shaped. 



Canescent. Gray-pubescent and hoary. 



Capsule. A dry fruit of more than one carpel which splits at 



maturity to release its seeds. 

 Carpel. A simple pistil or an element of a compound pistil. 

 Catkin. The same as an ament. 



Caudate. Furnished with a tail or with a slender tip. 

 Cell. The unit of structure of living things; a cavity of an ovary 



or anther. 

 Chambered. Said of pith which is interrupted by hollow spaces. 

 Ciliate. Fringed with hairs on the margin. 

 Cone. A fruit with woody, overlapping scales. 

 Coniferous. Pertains to cone-bearing; or the order Coniferales. 

 Coppice. Growth arising from sprouts at the stump. 

 Cordate. Heart-shaped. 

 Coriaceous. Of the texture of leather. 

 Corolla. Inner part of the perianth, composed of petals. 

 Corymb. A flat- topped flower cluster, the flowers opening from 



the outside inward. 

 Crenate. Dentate with the teeth much rounded. 

 Crenulate. Diminutive of crenate, finely crenate. 

 Crown. The upper part of a tree, including the living branches 



with their foliage. 

 Cuneate. Wedge-shaped, or triangular with an acute angle 



downward. 

 Cuspidate. Tipped with a sharp, rigid point. 

 Cylindric. Shaped like a cylinder. 

 Cyme. A flat-topped flower cluster, the flowers opening from the 



center outward. 



Deciduous. Not persistent; falling away as the leaves of a tree in 



autumn. 

 Decurrent. Running down, as of the blades of leaves extending 



down their petioles. 

 Decussate. In pairs alternately crossing at right angles. 

 Dehiscent. The opening of an anther or capsule by slits or valves. 

 Deltoid. Delta-shaped, triangular. 



