Reticulation |(1 Network. 



Retrorse f§I|tj$j Pointing backward or downward. 



Revolute ^HS&tl Rolled backward from the margin. 



Rhizomatous ^MM. Like a rhizome. 



Rhizome \jl<{< A rootstock or underground stem. 



Rib ilj], ft A prominent vein 



Root climber jje'^ffi^ A plant which climbs by root-like holdfasts. 



Root tuber ijUfl A modified tuberous root. 



Rootlet /J^R A small root. 



Rootstock tfcH' A rhizome or underground stem. 



Rosette MBkM A cluster of leaves in circular form. 



Rosulate M.$kV\ Gathered in a rosette. 



Rotate feiii;; Wheel-shaped. 



Rotund [L1|0 Rounded. 



Rudimentary t^m^ti Imperfectly developed, vestigial. 



Rufous ^|^fe Reddish. 



Rugose VfcU$) Wrinkled. 



Ruminate nfiMi-t'v Appearing as though chewed. 



Runcinate ffljlnj J-HI Sharply toothed, the teeth pointing backward. 



Runner |$t'i'li"Jt£ A slender prostrate branch which roots at the nodes. 



Sac H A pouch. 



Saccate l^k Bag- shaped. 



Sagittate WiWfc. Shaped like the barbed head of an arrow, with two acute straight 



lobes at the base. 

 Salver-form ~MMWfc With a border spreading at right angles to a slender tube. 

 Samara M'\\ An indehiscent one-seeded fruit in which the ovary-wall is expanded 



into a wing, as in Acer. 

 Sap tjtlit The juice of a plant. 

 Saprophytic 04iKj Living on humus. 

 Sarmentose :: J; vY{ Producing long runners. 

 Scaberulous f$tH A little rough or scurfy. 

 Scabrid fl&ft Somewhat rough. 

 Scabrous fli£ Rough to the touch or scurfy. 

 Scale j$| A thin scarious reduced leaf. 

 Scaly ,(ff.Jf t£ Scale-like, or bearing scales. 

 Scandent lfl}J|j^ Climbing. 



Scape IfcSp- A leafless peduncle. 



Scapose 3^ Scape-like. 



Scarious ft; (JUS Dry and membranous, not green. 



Schizocarp jf^ A dry fruit which splits into one-seeded portions. 



Scorpioid liH,^: When the main axis of the inflorescence is coiled. 



Scrotiform H^ Pouch- shaped. 



Scurfy fltt-K With small scales on the surface. 



Scutellum /f jf A structure in the grass seed through which the germinating embryo 

 absorbs nourishment from the endosperm. 



Secund {Sfa One-sided, e.g. where the flowers are all turned in the same direction. 



Seed ff, g^F- A fertilized and matured ovule. 



Seedcoat Mfc Testa. 



Seedling H A young plant developing from a seed. 



573 



