328 GLOSSARY. 



Retuse. Having a slight sinus, or superficial notch in the end 



Less than emarginate. 

 Reiolute. Rolled backward or outward. 

 Rhomboidal. Having four sides with unequal angles. 

 Ribbed. Marked with parallel ridges or veins. 

 Ringent. Irregular, with an upper and under lip. See Labiate 

 Rooting. Sending out lateral roots. 

 Rostellum. See Radical. 

 Rostrate. Furnished with a beak. 

 Rotate. Wheel shaped. Flat without a tube ; as in the flowers 



of jinagallis, Lysimachia, and Veronica. 

 Rugose. Wrinkled. Leaves of Sage. 

 Runcinale. Having large teeth pointing backward ; as the 



leaves of the Dandelion. 



S 



Sagittate. Arrow shaped. Like the head of an arrow. See 

 Sagitlaria. 



Salvor shaped. See Hypoerateriform. 



Samara. A seed vessel not opening by valves, having a winged 

 or membranous appendage ; as in the seed vessel of the Elm. 



Sarmentose. Running on the ground and striking roots from 

 the joints, as the strawberry. 



Scape. A stalk which springs from the root, and supports flow- 

 ers and fruit, but no leaves. See the Plaintaiu and Dande- 

 lion. 



Scabrous. Rough. 



Scarious. Having a thin membranous margin. The calyx 

 scales of Liatris scariosa. 



Scions. Lateral shoots or offsets from the root. 



Scrobiculate. Covered with deep, round pits. 



Segment. A part or principal division of a leaf, calyx, or co- 

 rolla. 



Semibiralvular. Half divided into two valves. 



Sericeous. Silky. 



Serrate. Notched like the teeth of a saw, the points tending 

 upward ; as in strawberry and rose leaves. 



Serrulate. Minutely serrate. 



Sessile. Placed immediately on the stem, without the interven- 

 tion of a stalk. 



Setaceous. Bristle like. 



Sheath. A tubular or folded leafy portion inclosing the stem. 

 See the leaves of Grasses. 



Silicle. A seed vessel constructed like a silique, but not longer 

 than it is broad. See Shepherd's-purse. 



Silique. A long pod or sted vessel of two valves, having its 

 seeds attached to the two edges alternately. 



Siliquose. Having siliques. 



Simple. Not divided, branched, or compounded. 



