rhombeus 



Root-Cap 



granules arising from the effects of 

 reagents in cell-contents. 



rnom'beus, rhom'bic, rhom'bicus, 

 (p6[j.[3os, atop), shaped like a rhomb, 

 an equilateral oblique-angled 

 figure ; rhombifb'lius (folium, a 

 leaf), rhomboidal-leafed ; rhombi- 

 form'is (forma, shape), rhomb- 

 shaped ; rhom'boid, rhomboi'deus, 

 rhomboi'dal, rhomboida'lis (elSos, 

 resemblance), approaching a rhom- 

 bic outline, quadrangular, with the 

 lateral angles obtuse. 



rhynchos'porous (pvyxos, a beak, 

 (TTropd, a seed), when the fruit ends 

 in a beak. 



Rhytido'ma'fpirriSu/xo, a wrinkle), the 

 formation of plates of cellular tissue 

 within the liber. 



Rib, a primary vein, especially the 

 central longitudinal or midrib ; 

 ribbed, furnished with prominent 

 ribs. 



Ricino'lein, the glyceride of Ricino- 

 leic Acid, present in the seeds of 

 Ricinus. 



Ric'tus (Lat., the opened mouth), 

 the mouth or gorge of a bilabiate 

 corolla. 



Ridge, an elevated line on the fruit 

 of Umbelliferae ; either primary 

 or secondary. 



rig'ens (Lat.), stiff, rigid ; riges'cent, 

 riyes'cens, having a stiff consis- 

 tence. 



right-hand'ed = DEXTRORSE ; cf. Ap- 

 pendix C. 



rig'id, riy'idus(La,ti. ), stiff, inflexible ; 

 rigid'ulous, somewhat rigid. 



Ri'ma (Lat. , a cleft), (1) a chink or 

 cleft ; (2) the ostiole of certain 

 Fungi (Lindley) ; rima'tus, J (Mod. 

 Lat.), rimose ; ri'miform (forma, 

 shape), shaped like a cleft; ri'mose, 

 rimosus, ri'mous, with chinks or 

 cracks, as old bark ; rimulo'sus 

 J (Mod. Lat.), a diminutive of ri- 

 mose. 



Rind, (1) the outer bark of a tree, all 

 the tissue outside the cambium ; 

 (2) sometimes restricted to the 

 tissues exterior to the active 

 phloem ; (3) the outer layer or 



cortex of Fungi ; (4) in Lichens 

 the Stra'tum cortica'le, also styled 

 Rind-lay'er. 



Ring, see ANNULUS for the various 

 senses in which it is used; ~ Bark, 

 the outer bark when disengaged in 

 strips or layers (Hartig) ; <- Pores, 

 vessels in wood when arranged 

 in the annual rings, as seen in 

 transverse section ; <~ Scale, dis- 

 ease caused by Trametes Pini, Fr. ; 

 ~ Type, an appearance in nuclear 

 division ; Idng'worm, a disease of 

 the skin due to TricUophyton 

 tonsurans, Malmsten. 



rin'gent, rin'gens (Lat., gaping), 

 wide open, gaping, as the mouth of 

 a labiate corolla ; ringentiflo'rus 

 (flos, a flower), the receptacle of 

 such Compositae as bear ringent 

 florets (Henslow) ; ringentiform'is 

 (forma, shape), apparently gaping. 



ripa'rian, ripa'rious, ripa'rius (Lat., 

 frequenting river-banks), growing 

 by rivers or streams. 



Ripe, mature, the completion of an 

 organ or organism for its allotted 

 function ; ri'pening, maturing. 



riva'lis (Lat., pertaining to a brook), 

 growing by a brook-side. 



rivularia'ceous, resembling the genus 

 Rivularia; rivula'rioid (eldos, re- 

 semblance), means the same. 



ri'vose, rivo'sus ('! rivus, a stream), 

 having sinuate channels (Crozier). 



rivula'ris (rivulus, a rill), growing by 

 watercourses ; riv'ulose, having 

 small sinuate channels (Crozier). 



rizo'mic, an error for KHIZOMATIC. 



Rod - fructiflca'tion, special simple 

 gonidiophores in Basidiomycetes ; 

 Rod'lets, straight rigid bacteria. 



Rogue, a gardener's name for a plant 

 which does not come true from 

 seed, a variation from the type. 



Root, the descending axis, growing in 

 the opposite direction from the 

 stem, enodose, mostly developing 

 underground, and absorbing mois- 

 ture from the soil ; ~ Bacillus, a 

 bacillus which has its station on 

 roots, as the nitrifying bacteria ; ~ 

 Cap, large cells which form a cap- 



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