INDEX 
457 
Honduras Sarsaparilla, histology of 
root, 124 
Honey dew, 265 
Honeysuckle Family, 399 
fruit, 209 
Hordeum sativum, 299 
Horsetails, 289 
Host, 247 
Hounds’ tongue, 390 
Humulus, 319 
glandular trichomes of, 107, 109 
Humulus lupulus, 109, 319 
Hura crepitans, 206 
Huxley, 62 
Hyacinth, 302 
Hybrid, 2 
Hydnaceae, 274 
Hydnum, 274 
Hydrangea, 336, 337 
arborescens, 337 
Hydrastis canadensis, 325 
Hydrophytes, 408 
Hydrophyllaceae, 388 
Hydropterales, 292 
Hydrotropism, 64 
Hymenium, 272, 275 
Hymenomycetes, 272 
Hyoscyamus, 391 
muticus trichome, 107 
niger, 391 
Hypericaceae, 367 
Hypericum, 367, 368 
perforatum, 368 
Hypha, 247 
Hyphae, aerial, 248 
stoloniferous, 248 
submerged, 248 
Hyssopus officinalis, 397 
Ignatia, 384 
Illicium verum, 324 
Imbedding, celloidin, 28, 29 
paraffine, 23, 26 
Impatiens, 5 
Indigenous, defined, 1 
Indigo, 344 
Indigofera tinctoria, 344 
Indirect nuclear division, 71, 74 
Indusium, 290 
Inflorescence, defined, 177 
ascending, 177 
centrifugal, 177 
centripetal, 177 
cymose, 177 
determinate, 177 
descending, 177 
indeterminate, 177 
mixed, 177 
Inflorescences, of Pine, 294 
of Zea Mays, 298 
Imperatoria Ostruthium, 378 
Indehiscent fruit, 203 
Indeterminate inflorescence, solitary. 
178 
Indian Corn, histology of seed, 215 
Indian Turnip, 301 
Indirect nuclear division, 71 
Integuments of angiospermous ovule, 
196 
Intercellular-air-spaces, lysigenous. 119 
schizogenous, 119 
Internal glands, 119 
phloem, 146 
Internode, defined, 137 
Intussusception, 62 
Inula N. F., 406 
Inula Helenium, 406 
Inulase, 95 
Inulin, 82 
Invertase, 75, 95 
Involucre, 178 
Ipecacuanha, 398 
Ipomcea, 388 
orizabensis, 388 
pandurata, 388 
simulans, 388 
Iridaceae, 304 
Iris, 304, 309 
