GLOSSARY 



ACUMINATE. Tapering to the end. 



AMPHIBIOUS. Living both on land and in water. 



ANASTOMOSE. To run together or to unite. 



ANNUAL. Having one season's duration. 



ANTHERIDIUM. The organ (male) in ferns correspond- 

 ing to the anther. 



AQUATIC. Living in water. 



AECHEGONIUM. The organ (female) in ferna corre- 

 sponding to the pistil. 



ARCUATE. Bowed or arched. 



AREOLA. A space marked out by veins. 



ARTICULATE. Jointed. 



ATTENUATE. Slenderly tapering. 



AURICLE. An ear-shaped appendage. 



AURICULATE. "With ear-shaped appendages. 



AWL-SHAPED. Tapering from a base to a slender tip: 



AWN. A bristle-like appendage. 



AXIL. The angle formed by a branch, or a leaf, with 

 the stem from which it arises. 



BIENNIAL. Having two seasons' duration. 



BLADE. The dilated part of a leaf. 



BRACT. A leaf, often much reduced, subtending a 

 flower as a part of an inflorescence. 



CELL. The smallest element in the structure of a living 

 organism. 



CHAFF. A scale, usually dry and membranous. 



CHANNELED. Grooved longitudinally. 



CHLOROPHYL. The green coloring matter in plants. 

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