INDEX AND GLOSSARY. 
307 
Raceme, 150. 
Racemous, resembling a raceme. 
Rachis, 36, 146. 
Radiate aud Radiant, PP. 219, 220. 
Radiate-veined. See Palmate-veined, 10. 
ftadicat, from the root. 
Radical number, 118. 
Radicle, 190, 191. 
Ramial, of the branches. 
Lamous, branched. 
Ray, Ray-flowers, 156. 
Receptacle, 64. 
Reclinate, 140. 
Recurved, bent or curved backward. 
Refleced, ourved back and downward. 
Regular flower, 86. 
heniform, kidney-shaped.—Figs. 23, 24. 
Repand.—Fig. 53. 
Reticulute, netted. 
Retuse, 34. 
Revolute, 189. 
Rhizome, 281. 
a a or rhombic, oval, with angular 
sides, 
Rib (costa), ridge caused by raised veins. 
Ringent, gaping, as when a labiate corolla 
has an open throat. 
Root.—Lesson 27. 
Root-stock, 231. 
Rosaceous, 87. 
Rostrate, with a beak. 
Rotate, 90. 
Rudiments, 116. 
Rugous, wrinkled. 
Ranucinate, 22.—Fig. 86. 
Runner, a slender branch striking root, 
as in Strawberry. 
Saceate, bag-like, or sack-like. 
Sugittate, arrow-shaped, 19. 
Salver-form, 94. 
Samara (a key), 169. 
Sap, 204. 
Scabrous, rough. 
Scale-stems, 228, 
Scape, 144. 
Scarious, dry, thin, scale-like. 
Scorpoid cyme, 159. 
Secund, all turned to one side. 
Seed.—Lesson 24. 
Segments, parts or divisions. 
Sepal, 65. 
Septinate, 40. 
Sericious, 61. 
Serotinous, late in the season. 
Serrate and Serrulate, 30. 
Sessile, 5. 
Setaceous or Setous, bristly. 
Sheath, lower part of the leaf or leaf-stalk 
which surrounds the stem. 
Shrub, 215, 
Silicle and silique, 181. 
Simple, not compound, of one piece. 
Simple pistil, 124. 
Sinuate, 21.—Fig. 82. 
Sinus, arounded recess between the lobes 
of the leaves, &e. 
Solitary, 145. 
Spadiciflor, 258. 
Spadix and spathe, 148. 
Spatulate, 17. 
Species, 241. 
Spike, 146. 
Spine, 56. 
Spinescent or Spinous, 187. 
Spiral arrangement, 49. 
Spores, 251. 
Spur, 78. 
Squarrous, of a ragged eepeomnees as, 
with crowded, spreading bracts or 
leaves, &e. 
Stamens, 67. _ 
Staminate, with stamens only, barren. 
Stellate, whorled. 
Stem.—Lesson 28. 
Sterile, 109. 
Stigma, 122. 
Stings, sharp, poisonous hairs, 59. 
Stipe, the stalk of a pod, &e. 
Stipitate, borne on a stipe. 
Stipule, 4. 
Stipulate, with stipules. 
Stolan, a branch which strikes root at the 
end, producing a new plant. 
Stoloniferous, bearing stolons. 
Straight-veined, when the principal veins 
pass direct to the margin. 
Striate, slightly furrowed with streaks. 
Strigous, clothed with short, stiff, and 
close-pressed hairs. 
Strobile, same as cone, 183, 
Style, 122. 
Sub (in composition) denotes the quality 
in a lower degree, as, 
Sub-entire, nearly entire. 
Submersed, under water. 
Subterranean stems, 225. 
Subulate, awl-shaped, Fig. 7. 
Succulent, thick, Juicy, fleshy. 
Superior, 82. 
Supra-axillary, arising from above the 
axil, as do the flowers of Potato. 
