Rays, 308
Receptaculum, 244, 304, 305
Reclinatus, folia, 147
Reclinatus, caulis, 118
Rectus, caulis, 130
Recurva, folia, 147
Reflexa, folia, 147
Reniforme, folium, 156
Repandum, folium, 163
Repens, caulis, 117
Repens— — —, radix, 106
Resupinata, folia, 148
Revolutum, folium, 164
Rhombeum, folium, 155
Ribbed leaf, 166
Ribless leaf, 167
Ringens, corolla, 257
Rosacea, corolla, 257
Rostrum, seminis, 301
Rotata, corolla, 257
Rugged leaf, 165
Rugosum, folium, 165
Runcinatum, folium, 157
Sagittatum, folium, 156
Samara, 279
Sarmentosus, caulis, 120
Scaber, 125
Scaly roots, 112,
Scandens, caulis, 118
Scapus, 128
Scar of the seed, 295
Scimitar-shaped leaf, 170
Secunda, folia, 147
Seed, 244, 287—304
Seed-vessel, 244, 276—287
Semen, 244, 287—304
Semicylindraceum, fol. 169
Sempervirens, fotium, 172
Separated flowers, 306
Serratum, folium, 162
Serratulum, folium, 163
Sessiles, flores, 132
Sessilia, folia, 149
Sharp leaf, 160
Sheath, 250, 251, 309
Sheathing leaves, 150
Shrubs, 136
Silicula, 280
Siliqua, 280
Silver grain, 53
Simplicia, folia, 151
Sinuatum, folium, 157
Solitarius, pedunculus, 131
Spadix, 250, 265
Sparsa, folia, 145
Sparsi, pedunculi, 131
Spatha, 250
Spatulatum, folium, 154
Species of plants, 359—370
Spica, 231—233
Spicula, 233
Spike, 231—233
Spikelet, 233
Spina, 223
Spinosum, folium, 162
Spiral vessels, 47
Sporæ, 497
Sporangium, 496
Stamen, 243, 270—273
Standard, 258
Stigma, 273
Stipes, 134
Stipula, 218—221
Stone fruit, 282
Striatus, 126
Strictus, caulis, 120
Strobilus, 286
Strophiolum, 302
Stylus, 273
Submersa, folia, 148
Subrotundum, folium, 153
Subsessile, folium, 174
Subulatum, folium, 169
Sulcatus, 126
Supradecompositum, fol. 180
Sword-shaped leaf, 170
