228 



INDEX 



Reproductive organs of flowers, 



position of, 190 

 Resinous bud, Fig. 85, p. 147 

 Resting spore, 30 

 Reticulate veined leaves, 165 

 Retrograde metamorphosis, 181 



Fig. Ill, p. 181 

 Retuse apex of leaves, 159 



Fig. 95, p. 160 

 Rheum rhaponticum, Fig. 122, p. 



193 



Rhizoids, 56, 70 

 Rhizomes, 80, 134 



Figs. 73, 75, 76, pp. 128, 134, 135 



type of, 137 

 Rhizopus nigricans, Figs. 14-17, 



pp. 45-48 



Rhubarb, pie, Fig. 122, p. 193 

 Rhus glabra, Fig. 97, p. 162 



hirta, Figs. 82, 102, pp. 142, 167 

 Robinia pseudo-acacia, Figs. 89, 



95, 97, 130, pp. 152, 160, 162, 202 

 Root tubercles,. 130 

 Roots, 125 



color, 131 



duration, 130 



Figs. 71-74, 76, pp. 126-129, 135 



fractures, 132 



functions, 125 



general characters, 125 



modification, 130 



nature, 130 



odor, 132 



origin, 130 



outline of sections, 132 



size, 131 



surface markings, 131 



taste, 132 



texture, 131 



types, 130 



Rose, Fig. 89, p. 152 

 Rotate corolla, 180 

 Rotund outline of leaves, 161 



Fig. 96, p. 161 

 Rough bark, Fig. 83, p. 143 



Royal fern, Fig. 38, p. 74 

 ubus nigroba< 

 pp. 196, 198 



>, P- '4 

 , Figs. 



125, 126, 



Rudbeckia hirta, Fig. 108, p. 175 

 Rumex acetosella, Fig. 92, p. 155 

 Runcinate margin of leaves, 158 



Fig. 93, p. 157 

 Rusts, 55 

 Rye, Fig. 122, p. 193 



S 



SACCATE corolla, 180 

 Saccharomyces cerevisise, 41 



Fig. 13, p. 42 



Sagittaria latifolia, Fig. 92, p. 155 

 Sagittate base of leaves, 156 



Fig. 92, p. 155 

 St. John's woert, Figs. 110, 1136, 



pp. 181, 183 



Salix cordata, Figs. 87, 89, pp. 150, 

 152 



sp., Figs. 106, 119, pp. 173, 188 

 Salveform corolla, 180 

 Samara, 193, 195, 200 



Figs. 122, 129, pp. 193, 201 

 Sambucus canadensis, Figs. 102, 



108, pp. 167, 175 

 Sanguinaria canadensis, Figs. 75, 



76, pp. 134, 135 

 Saponaria officinalis, Fig. 108, p. 



175 



Saprophytes, 49 

 Saprophytic bacteria, 36 



fungi, 51 

 Sarcocarp, 192 

 Sarracenia purpurea, Fig. 103, p. 



168 

 Sarsaparilla, wild, Figs. 93, 108, 



pp. 157, 175 



Sassafras, Figs. 93, 94, 104, pp. 157, 

 158, 169 



sassafras, Figs. 82, 93, 94, 104, 



pp. 142, 157, 158, 169 

 Scaleless buds, 146 

 Fig. 85, p, 147 

 Scaly bark, Fig. 83, p. 143 



buds, 146 



Fig. 86, p. 148 



bulbs, 137 

 Schizocarps, 199 



Fig. 129, p. 201 

 Schizomycetes, 51 

 Scirpus atrovirens, Fig. 91, p. 154 

 Secale cereale, Fig. 122, p. 193 

 Secundine, 184 

 Sedge, Fig. 91, p. 154 

 Seed coat, 117 

 Seeds, 108, 192, 206 



color, 209 



dispersal of, 211 



dormancy or rest period, 210 



embryo, 208 



germination, 210 



