PLANTS OP SOUTHERN NEW JERSEY. 809 



Sinus. A cleft between two lobes. 



Spathe. A sheath-like bract covering an inflorescence. 



Spadix. A fleshy spike stem or axis. 



Spatulate. Gradually narrowed from a rounded terminal portion. 



Spike. An elongate simple inflorescence, with the flowers sessile or nearly so. 



Spikelet. A small spike ; in grasses, one of the individual flowers or flower 



clusters with its bracts. 

 Stamen. One of the pollen bearing organs of the flower ; the terminal portion 



is the anther. 

 Stipe. The stalk of the pistil, or leaf stalk of a fern. 

 Stipule. An appendage growing at the base of a petiole. 

 Stolon. A runner, which roots. 

 Terete. Circular in cross section. 

 Ternate. In threes. 



Thyrse. A contracted, cylindrical panicle. 

 Tomentose. Densely wooly. 

 Umbel. An inflorescence in which the several branches spring from the same 



point. 

 Utricle. A small bladder-like body. 

 Viscid. Glutinous. 



