GLOSSARY 



Barbed. Furnished with very small rigid points or sharp bristles 



which are usually turned downward. 

 Basal. Coming from the base, as basal leaves. 

 Beak. A pointed projection. 

 Bearded. Having a tuft of hairs. 



Bell-shaped. Tubular and enlarged, shaped more or less like a bell. 

 Berry. A fruit fleshy throughout, the seeds usually small. 

 Berry-like. Similar to a berry. 



Bi-. Used in compound words to mean twice or double. 

 Biennial. Applied to plants which live for two years, usually pro- 

 ducing the fruit and flowers the second year. 

 Bipinnate. Pinnate leaves which have secondary petioles each 



bearing more than one leaflet. 

 Bladder. Small sac filled with air. 

 Blade. The expanded portion of a leaf. 

 Bloom. A thin coating on the surface of some fruits and leaves 



often grayish or bluish in color. 



Blunt. Having a rounded end, not tapering or abruptly cut off. 

 Boat-shaped. Shaped somewhat like a rowboat with or without 



a keel, more or less pointed at each end and hollowed. 

 Bract. Leaf-like organ usually smaller than the ordinary leaves 



of the plant and often found near the flowers. 

 Branch. A division of the stem. 



Branchlet. A small branch or a division of a branch. 

 Bristle. A stiff hair or hair-like structure. 

 Bristly. Covered with bristles. 

 Bud. An undeveloped stem or branch with the undeveloped leaves. 



An unopened flower. 

 Bulb. A bud differing from ordinary buds by growing in the 



ground and having thickened scales containing nutriment. 

 Bulblet. A very small bulb usually above ground. 

 Bulbous. Growing from or producing bulbs. 



Bur. A seed or head bearing hooked, barbed, or pointed appendages. 

 Bush. A low woody plant with numerous branches. 



Calyx. The outer whorl of leaf-like organs of the flower, usually 



green. 

 Calyx-tube. The tube formed by the growing together of the sepals, 



with no other organs attached to it. 

 Capillary. Long and narrow like a coarse hair. 

 Capsule. A dry fruit which opens to shed its seed, usually composed 



of two or more carpels. 



Carpel. A single pistil or one part of a compound pistil. 

 Caruncle. An appendage or protuberance on a seed growing near 



its place of attachment. 

 Catkin. The same as ament, which see. 



242 



