422 Introduction to Botany. 



Run'cinate (L. runcina, a large saw) : deeply incised, with the lobes point- 

 ing toward the base of the petiole, as in the dandelion leaf. Fig. 32. 

 Run'ner : a prostrate lateral offshoot rooting at the nodes. Fig. 211. 



Sac'cate (L. saccus, a bag) : bag-shaped. 



Sag'ittate (L. sagitta, an arrow) : arrow-shaped ; having two acute lobes at 

 the base like the barbs of an arrow. Fig. 243. 



Sal'ver-form or sal'ver-shaped : tubular, with a spreading border. Fig. 273. 



Sama'ra (L. samara or samera, the fruit of the elm) : an indehiscent winged 

 ' fruit like that of the maple and elm. Figs. 319 and 320. 



Sapona'ceous (L. sapo, soap) : soapy or slippery to the touch. 



Sap-wood : the new wood of exogenous woody plants, of lighter color and 

 of less specific gravity than the older heart-wood. 



Sca'brous (L. sealer, rough) : rough to the touch. 



Scan/dent (L. scandens, climbing) : climbing in any manner. 



Scape (L. scapus, a shaft or stem) : a leafless floral axis or peduncle rising 

 from the ground. 



Sca'pose : bearing or resembling a scape. 



Sca'riose or sca'rious (L. scariosus) : dry and membranous. 



Scor'pioid (Gr. skorpios, a scorpion ; eidos, resemblance) : having the axis of 

 the inflorescence coiled to one side. 



Scor'pioid-cyme : a cyme whose lateral branches occur alternately on oppo- 

 site sides. 



Scurf : bran-like scales over the epidermis. 



Seed : the ripened ovule and its integuments. 



Seg'ment : one of the parts of a cleft or divided member ; one of the simi- 

 lar parts of a series. 



Sep'al or se'pal (L. separ, separate) : one of the divisions of the calyx. 



Sep'ticidal (L. septum -f ccedere, to cut) : a method of dehiscence in which 

 the pod is divided through the middle of the partitions. Fig. 321. 



Septif'ragal (L. septum ; frangere, fractum, to break): a mode of dehis- 

 cence in which the valves break away from the partition walls. Figs. 

 323 and 324. 



Sep'tum, pi. septa (L. septum, a wall or fence) : the division wall of an ovary. 



Ser'rate (L. serra, a saw) : having forward-pointing marginal teeth. Fig. 229. 



Ser'rulate : finely serrate. 



Ses'sile (L. sessilis, sitting) : not provided with a stalk. 



Seta'ceous (L. seta, a bristle) : bristle-like. 



Se'tiform: having the form of a bristle. 



Setose' : beset with bristles or bristly hairs. 



Se'tulose : resembling or beset with fine bristles. 



