GLOSSARY. 



431 



Rhizanthous (-us). Root-flowered ; flower- 

 ing from the root or seeming root. 

 Rhizina. The peculiar roots or root- 

 hairs of Mosses, Lichenes, &c. 

 Rhizocarpous (-us). Rhizocarpic (-icus). 

 Literally root-fruited; used by De- 

 Candolle for a perennial herb. 

 Rhizome, Rlii:.u/nn. A rootstock; a 

 stem of root-like appearance pros- 

 trate on or underground, from which 

 rootlets are sent off; the apex pro- 

 gressively sending up herbaceous 

 stems or flowering stalks and often 

 leaves; 5G. 



Rhizomorphous (-us). Root-like in ap- 

 pearance. 



Rhombic (-icus). Rhomb-shaped. 

 Rhomboidal (-alls). Approaching a 

 rhombic outline ; quadrangular, with 

 the lateral angles obtuse. 

 Rib. A primary and strong vein or 

 conspicuous portion of the framework 

 of a leaf ; 92. 

 Ribbed. Furnished with prominent 



ribs. 



Rictus. The mouth or gorge of a bila- 

 biate corolla. 

 Rima. A chink or cleft. 

 Rimose (-osus). With chinks or cracks, 



like those of old bark. 

 Ring. In Ferns, &c. See Annulus. 

 Rinyent (-ens). Grinning or gaping ; as 

 is the mouth of an open bilabiate 

 corolla; 248. 

 Riparius. Growing along the banks of 



rivers, &c. 



Rivdiis. Growing along brooks. 

 Rivularis. Growing in watercourses or 



rivulets. 



Root. The descending axis. Roots are 

 axes which grow in the opposite di- 

 rection from the stem, are not com- 

 posed of nodes and internodes, are 

 mostty developed underground, and 

 absorb moisture, &c., from the soil; 

 27. 



Root-cap, 13, 28. 



Root-hairs. Attenuated unicellular 

 outgrowths or hairs from the newly 

 formed parts of a root, for absorp- 

 tion; 13, 29. 

 Rootlet. A very slender root or branch 



of a root. 



Rootstock. See Rhizoma: 56. 

 Roridus. Dewy; covered with particles 



resembling drops of dew. 

 Rosaceous (-eus). Arranged like the 

 five petals of a normal rose; 246. 

 Sometimes used for rose-color. 



Roseus. Rose-colored ; pale red. 

 Rostellate (-atus). Diminutive of Ros- 

 trate. 



RostMum. A diminutive beak. Also 

 the name applied by Linnaeus to the 

 Caulicle or Radicle. 



Rostrate (-atus). With a Rostrum, a 

 beak or spur; narrowed into a slender 

 tip or process. 



Rosular, Rosulate (-atus). Collected in 

 a rosette. 



Rotate (-atus). Wheel-shaped; circular 

 and horizontally spreading very flat ; 

 248. 



Rotund (Rotundus, Rotundatus). Round- 

 ed in outline ; 95. 



Rouyh, Rouyhish. See Scabrous. 



RubMus, Rubescent (-ens), Rubens. Red- 

 dish. Rubescent also is turning red. 



Ruber. Red in general. 



Rubicundus. Blushing, turning rosy- 

 red. 



Rubiginose (osus). Brownish rusty-red. 



Ruderal (-alls). Growing in waste places 

 or among rubbish. 



Rudiment. An imperfectly developed 

 and functionally useless organ ; a 

 Vestige. 



Rufous (-us), Rufescent (-ens). Pale 

 red mixed with brown. 



Ruyose (-osus). Covered or thrown into 

 wrinkles, Rugae. 



Ruminated (-atus). As if chewed ; said 

 of the albumen of a nutmeg, &c. ; 311. 



Runcinate (-atus). Saw-toothed, or 

 sharply incised, the teeth or incisions 

 retrorse. 



Runner. A prostrate filiform branch 

 which is disposed to root at the end 

 or elsewhere ; 53. 



Running. Same as Repent. 



Rupestris, Rupicola. Growing on rocks 

 or in rocky places. 



Rujitllis. Bursting irregularly. 



Rusty. Same as Rubiginose, Rufescent, 

 and Ferruginous. 



Rutildiis. Deep red with a metallic 

 lustre. 



Sabulosus. Growing in sandy places. 

 Saccate (-atus). Sacciform. Sac-shaped; 



baggy. 

 Sagittate (-atus). Sarjitlij'orm (-ormis). 



Arrow-head-shaped. 

 Salsuginosus. Growing within reach of 



salt water. 

 Salver-shaped. See Hypocraterimor- 



phous; 248. 



