139 



Revolute. Rolled backward or under. 



Eootstock. A horizontal subterranean stem, sending up leaves or 



stems. 



Eotate. Wheel-shape; essentially flat and circular. 

 Sac-like. Inflated; sack-like. 

 Sagittate. Shaped like an arrow-head. 

 Salver-form. A corolla having a slender tube abruptly expanded at the 



summit into a flat or spreading portion. 

 Scape. A peduncle arising directly from the base of the plant, leafless 



or bearing bracts only. 



Segment. One member or portion of an organ. 

 Sepal. One member or portion of the calyx. 

 Serrate. With sharp teeth at the margin. 

 Serrulate. Finely or minutely serrate. . 

 Sessile. Without a stalk, petiole, or pedicel. 

 Sheathing 1 ,, Inclosing. 

 Simple. In one piece; not compound; usually applied to leaves with 



a single blade. 

 SinuatCo Wavy-margined. 



Sinus. The angle between two lobes or divisions. 

 Spadix. A short fleshy spike. 



Spathe. A large bract or pair of bracts enclosing a flower-cluster. 

 Spatulate. Shaped like a spatula, with a narrow base and an en- 

 larged, more or less rounded summit. 

 Spike. An elongated flower-cluster having sessile flowers upon an un- 



branched axis. 



Spike-like. Resembling a spike. 



Spinulose- serrate. Provided with teeth tipped with minute spines. 

 Spur. A hollow projection from the calyx or corolla, usually slender 



in shape, and generally directed backward. 

 Stamen. One of the organs of a flower, consisting of a filament an.d 



anther. 



Staminate. Bearing stamens. 

 Stolon. A short stem arising from the base of a plant, prostrate or 



nearly so, and eventually taking root. 

 Striate. Marked with fine stripes or ridges. 

 Style. A portion of the pistil, usually slender, and connecting the 



ovary and stigma. 

 Superior. A superior ovary occupies the center of the flower and is 



not attached to any other floral organs. 

 Subtending 1 . Situated at the base of an organ. 

 Subulate, Awl-shape. 

 Ternately. Divided by threes. 



Tomentose. Densely hairy with matted or tangled hairs. 

 Trifoliate. With three leaflets. 

 Truncate. Cut straight across at the tip, or nearly so. 



