xxx Glossary 



of the stem on which parts of a flower or of a 

 flower-cluster are borne. 



RENIFORM : kidney-shaped. 



REPAND: wavy -margined. 



RETICULATE : arranged like a network. 



REVOLUTE : rolled backward. 



RHIZOME: an underground stem; a rootstock. 



RHOMBIC: having the- shape of a four-sided figure with 

 parallel and equal sides which may be either 

 perpendicular or oblique to each other. 



RHOMBOID: of a somewhat rhombic shape. 



ROTATE: wheel-shaped. 



RUNCINATE : coarsely cut into with the segments turned 

 backward. 



SAGITTATE: shaped like an arrow-head with the lobes 

 turned downward. 



SAMARA: a simple, indehiscent, winged fruit. 



SAPROPHYTE : a plant which grows on dead organic 

 matter. 



SCALE : a minute, rudimentary leaf. 



SCAPE: a leafless or nearly leafless flower-stalk arising 

 from near the ground. 



SCARIOUS: dry, thin, membranous. 



SCURF: minute scales on the epidermis (skin). 



SEPALS : the divisions of the calyx. 



SERRATE: with teeth pointing forwards. 



SERRULATE: with minute forward pointing teeth. 



SESSILE : (leaf) without any stalk. 



SHEATH: a tubular structure such as is formed by the 

 lower part of the leaves of grasses, etc. 



SILICLE : a short and broad silique. 



SILIQUE: the elongated two-valved and usually de- 

 hiscent fruit of the Cress family. It is divided 

 by a partition and the placentae are parietal. 



SINUATE: with a strongly wavy margin. 



