XXU GtOSSART. 



Sheath; tlie lower part of a leaf or its petiole, whicli forms a 

 vertical sheath surrounding the stem. It is sometimes 

 found alone. 

 Siliole ; 'a sUique not four times as long as broad. 

 Siliqtie ; a long podlike fruit of Crucifers having its edges con- 

 nected by an internal membrane. 

 Simple ; not compound ; not branched. 

 Sinuate ; having many large blunt lobes and notches. 

 Slashed ; with deep tapering incisions. 

 Smooth ; free from all Hnds of roughness. 

 Sobole ; a creeping undergTound stem producing roots and leaf- 

 buds at intervals ; an underground stole. 

 Soboliferous ; having soboles, or long underground shoots ending 



in suckers. 

 Solitary ; growing singly. 

 Spadix ; a succulent spike bearing many sessile closely placed 



flowers. 

 Spath ; a large bract often enclosing a spadix. 

 Spathulate ; oblong, with a long linear claw or haft. 

 Spike ; a long simple axis with many sessile flowers ; hence spi- 



cate flowers. 

 Spikelet ; the small group of flowers in Grasses enclosed within 



one or more glumes. 

 Spine ; a stiff sharp woody persistent thorn. 

 Spinous ; furnished with spines. 



Spinulose ; with small, often very minute spines or prickles. 

 Spiral vessels ; fine tubes composed of membrane with spirally 



twisted fibres internally. 

 Sporules ; the seedlike reproductive bodies of flowerless plants. 

 Spur ; a tubular extension of the lower part of a petal or gamo- 

 petalous corolla ; a loose prolongation of the base of a leaf 

 beyond its point of attachment. 

 Spurred ; furnished with a spur. 

 Squarrose ; covered with appendages spreading at right angles - 



or more. 

 Stamen ; the male organ of a flower, usually formed of a fila- 

 ment and anther. 

 Staminode ; a scale on the inside of the upper lip of some Scro- 



phulariacesB. 

 Standard ; the upper or posterior petal of a Pea-flower, which 



is outside the others in the bud. 

 Starlike ; applied to flowers of which the petals are narrow and 



distant and radiant like a star. 

 Stellate ; radiating from a centre like a star. 

 Stellidate ; like minute stars. 



Stiffma ; the cellular part at the top of a carpel or style to which 

 the pollen adheres. 



