INDEX 
369 
Hairs, glandular, 73 
hooked, 73, 74 
multicellular, 72 
non-glandular, 72 
root, 74, 86 
stellate, 72 
stinging, 74 
unicellular, 72 
Haloxylon, 271 
Hamamelidaceae, 285 
Hamamelidis Folia, 286 
Hamamelis virginiana, 286, 287 
Hancornia, 62 
Hanstein, 67 
Hard Bast, 105 
Haustoria, 195 
Hawthorn, 286 
Head, defined, 139 
Hedeoma pulegioides, 344 
Hedera Helix, 323 
Helianthemum, 317 
canadense, 317 
Helianthus, tuberosus, 351 
Heliotropes, 336 
Helleborus niger, 275 
Helonias, 252 
Helvellales, 213 
Henbane, 338 
Hepaticae, 231 
Hepburn, 62 
Herb, defined, 100 
Herba Majorans, 344 
Hesperidin, micro-chemic test for, 51 
Hesperidium, 165 
Heterocysts, 184 
Hevea braziliensis, 303 
Hibiscus Syriacus, 311 
Hilum, 155, 169 
Histology, defined, 1 
of Aconitum, 93 
of annual dicotyl stem, 101 
of anther, 149, 150 
of bark, no 
of California Privet root, 91-93 
of Cascara Sagrada, no 
24 
Histology of dicotyl tuberous root, 93 
of dicotyl roots, of primary 
growth, 89, 90 
of secondary growth, 90, 91 
of dicotyl stems, 101-108 
of fern lamina, 17 
root, 16, 17 
sori and sporangia, 19 
stem, 13-16 
stipe, 17 
of fruits, 166, 167, 168 
of Greenbrier stem, 114, 115 
of herbaceous monocotyl stem, 1 13 
of leaves, 130-136 
of monocotyl roots, 88, 89 
of monocotyl stems, herbaceous, 
113 
woody, X14, 115 
of perennial dicotyl stem, 104, 105 
of seeds, 1 70-1 73 
Holdfast, 194 
Honey dew, 214 
Honeysuckle Family, 346 
Horsetails, 237 
Host, 195 
Hounds’ tongue, 336 
Humulus lupulus, 267 
Huxley, 40 
Hybrid, 2 
Hydnacese, 222 
Hydnum, 222 
Flydrangea, 284 
arborescens, 285 
Hydrastis canadensis, 273 
Hydrophytes, 83 
Hydrophyllaceae, 336 
Hydropterales, 241 
Hymenium, 224 
Hymenomycetes, 220 , 
Hyoscyamus, 339 
niger, 339 
Flypha, 195 
Hyphs, aerial, 205 
submerged, 205 
Hyssopus officinalis, 344 
