GLOSSARY OF BOTANICAL TERMS 



REFLEXED. Bent backward abruptly. 



REGULAR. Uniform in shape or structure. 



REPAND. With slightly uneven and somewhat sinuate margin. 



RETICULATE. In the form of a network. 



RETRORSE. Facing outward ; applied to stamens that face away from the 

 pistil. 



REVOLUTE. Rolled backwards. 



ROOT. The underground part of a plant which supplies it with nourish- 

 ment. 



ROSTRATE. Having a beak. 



ROTATE. With a flat, circular, corolla limb. 



SALVER-SHAPED. Having a slender tube abruptly expanded into a flat limb 

 or border. 



SAMARA. An indehiscent winged fruit. 



SEED. The ripened ovule. 



SECUND. Borne along one side of an axis. 



SEGMENT. A division of a leaf or fruit. 



SEPAL. One of the leaves of a calyx. 



SERRATE. With teeth projecting forward. 



SERRULATE. Diminutive of serrate. 



SESSILE. Without a stalk. 



SILKY. Covered with close-pressed, soft and straight pubescence. 



SIMPLE. As applied to leaves ; in one piece, undivided. 



SINUATE. With wavy margins. 



SINUS. The cleft between two lobes. 



SMOOTH. Without irregularities ; destitute of hairs. 



SPORT. A sudden variation from the normal type of structure. 



SPECIES. A group of individuals which possess in common such a number 

 of constant characters that they may be considered to be descended from 

 a common ancestral form. 



SPIKE. An elongated flower cluster. 



SPINE. A sharp woody or rigid outgrowth from the stem. 



SPRAY. The ultimate division of a branch. 



STAMEN. The organ of the flower that bears the pollen. 



STANDARD. The upper dilated petal of a papilionaceous corolla. 



STELLATE. Star-like. 



STERILE. Unproductive ; as a flower without pistil or stamen without an- 

 ther. 



STIGMA. The summit or side of the pistil to which the pollen grains become 

 attached. 



STIPULATE. With stipules. 



STIPULE. Appendages at the base of a petiole, often adnate to it. 



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