INDEX 
380 
Rhodophycese, 194 
Rhodymenia palmata, 195 
Rhoedales, 280 
Rhubarb, 270 
Rhus, cotinus, 304 
Glabra N. F., 304 
japonica, 304 
semialata, 304 
toxicodendron, 304 
typhina, 304 
venenata, 304 
Ribes, 284 
Riccia, 232 
Ricinus communis, 303 
Rocella, 230 
Rock Rose Family, 317 
Root, defined, 85 
adventitious, 87 
anomalous, 87 
cap, 86 
classification as to form, 87, 88 
conical, 87 
distinction from stem, 87 
duration of, 88 
epiphytic, 87 
functions, 85, 86 
fusiform, 87 
generative tissues of, 86, 87 
hairs, 86 
histology, 88-93 
lateral, 16 
primary, 87 
secondary, 87 
system, 94 
tubercles, 93-96 
Roots, Dicotyledon, abnormal struc- 
ture in, 93 ( 
of primary growth, 89-90 
of secondary growth, 90-91 
Monocotyledon, 88, 89 
napiform, 87 
nodule producing, 94 
Roridula, 283 
Rosa, canina, 289 
centifolia, 289 
Rosa, Gallica, 288 
Rosaceae, 287 
Rosales, 284 
Rosette aggregates, 55 
Rosmarinus officinalis, 344 
Rubber, 62 
Rubi Fructus, 288 
Rubi ldaei Fructus, 288 
Rubiacea?, 343 
Rubiales, 345 
Rubus N. F., 286 
cuneifolius, 286 
Idasus, 288 
nigrobaccus, 286, 288 
strigosus, 288 
villosus, 286, 288 
Ruellia ciliosa, 342 
Rumex N. F., 270 
Rumex, 269 
acetosella, 269 
crispus, 270 
obtusifolius, 270 
Rusts, 218 
Ruta graveolens, 299 
Rutacese, 297 
hesperidin in, 51 
Ruteas, 297 
Sabal, 284 
Sabbatia angularis, 332 
Sabina, 244 
Saccharomyces anomalus, 200 
apiculatus, 204 
cerevisiae, 200, 201 
ellipsoideus, 203, 204 
exiguus, 200 
farinosus, 200 
Ludwigii, 200 
mali Duclauxii, 200 
marxianus, 200 
membranifaciens, 200, 204 
pastorianus, 200 
Saccharum, 272 
officinarum, 248 
Saddle Fungi, 213 
