GLOSSARY 



on one tree and sometimes on separate trees. Pistillate 

 and staminate flowers grow on the same tree in the Chest- 

 nut Scrub Oak (Quercus prinoides). 



CORDATE (from Latin for heart-shaped): heart-shaped. 

 Leaves of the White Violet (Viola pollens} are cordate in 

 outline, those of the clasping-leaved Milkweed (Asclepias 

 amplexicaulis) are cordate at the base only. 



COROLLA (Latin diminutive for a crown): the showiest 

 and most distinctive part of the flower, immediately sur- 

 rounding the stamens and pistil. Corolla of the Buttercup 

 (Ranunculus bulbosus) is bright yellow. 



CORYMB (from Greek for a cluster of flowers): a flower- 

 arrangement in which the main stem is so shortened that, 

 although the flowers grow from different points on it, 

 the result is flat-topped or convex. Flowers of the Cock- 

 spur Thorn (Cratcegus Crus-galli) are in a corymb). 



CYME (from Greek for a sprout) : a flower-arrangement in 

 which the succession of bloom is from the topmost flower 

 downward or from the innermost outward. A cyme is 

 variable in shape, but is frequently flat-topped. Flowers 

 of the Common St. John's-wort (Hypericum perforatum) 

 are in a cyme. 



DENTATE (from Latin for toothed): bluntly-toothed. 

 Denticulate: diminutive form. Leaves of the Jewel- weed 

 (Impaliens biflora) are dentate. 



DISK (from Latin and Greek for a round plate or quoit) : 

 applied to the tubular flowers of the central head of flowers 

 in the Composite Family to distinguish them from the 

 ray-flowers. Disk flowers of the Common Daisy (Chrys- 

 anthemum leucanthemum var. pinnatifidum) are yellow. 



DRUPE (from Latin and Greek for an olive) : a pulpy fruit 

 with a hard or stony seed-case at the centre. Fruit of 

 the Beech Plum (Prunus maritima) is a drupe. 



