GLOSSARY 



433 



Ra'mal. Pertaining to a branch. 



Ra'mus. A branch. 



Ramose'. Branching. 



Rank. A row of leaves or other organs arranged vertically on a stem. 



Ra'phe (Rha'phe). The adherent portion of the ovule stalk in inverted and half 

 inverted ovules and seeds. 



Raph'ides. Bundles of needle-shaped crystals. 



Recep'tacle. The shortened stem upon which the whorls of floral leaves are 

 inserted. 



Receptac'ular. Pertaining to the receptacle. 



Rec'linate. Bent downward. 



Reclin'ing. See Reclinate. 



Recurved'. Curved outward or backward to a moderate extent. 



Reflexed'. Turned outward to backward more abruptly than Recurved. 



Reg ma. A capsular fruit of 2 or more carpels that first splits into separate 

 parts and then each of these dehisces. 



Rejuvenes'cence. Applied to a mode of reproductiou in which the protoplasm 

 of the cell becomes rounded out, escapes by ruptnre of the cell wall, forms 

 cilia and moves about, in time developing into a new Ipant. 



Ren'ifonn. Kidney-shaped. 



Repand'. Having a slightly undulating margin. 



Re'pent. Creeping. 



Re'plum. A spurious membranous septum seen in Cruciferous fruits that per- 

 sists after the valves have fallen away. 



Retic'ulate. Applied to markings or veins which are in the form of a network. 



Retuse'. Having a broad, shallow sinus at the apex. 



Rev'olute. Said of leaves in the bud when their margins are rolled backward. 



Rha'phe. See Raphe. 



Rhi'zoids. Absorptive organs of certain plants below the Pteridophytes that are 

 analagous with roots of higher plants. 



Rhizome'. A creeping underground stem. 



Rhi'zomorphs. Root-like structures composed of united hyphae and seen in 

 certain fungi. 



Rib. A prominent vein or ridge. 



Rin'gent. Applied to the corolla of a bilabiate type whose throat is open and 

 lips separated. 



Ripa'rious. Growing along the banks of rivers or other water-courses. 



Rosette'. A cluster of leaves or other organs. 



Ros'trate. Beaked. 



Ro'tate. Wheel-shaped. 



Rotund'. Rounded in outline. 



Ru'fous. Brownish-red. 



Rugose'. Wrink-1 ed . 



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