INDEX 
456 
Hairs, glandular, 107 
hooked, 108, 109 
multicellular, 109 
non-glandular, 109 
root, 121, 122 
stellate, 107, 109 
stinging, 108 
tufted, 109 t 
unicellular, 107 
uniseriate, 109 
Halophytes, 410 
Haloxylon, 323 
Hamamelidaceae, 337 
Hamamelidis Folia, 338 
Hamamelis virginiana, 338 
Hancornia, 94 
Hanstein, 99 
Harebell, corolla of, 187 
Hard Bast, 144 
Harshberger, 264 
Haustoria, 123, 247 
Hawthorn, 338 
Head, defined, 179 
Heath Family, 379 
Hedeoma, 397 
Hedeoma pulegioides, 397 
Hedera Helix, 376 
Helianthemum, 369, 370 
canadense, 370 
Helianthus tuberosus, 404 
Heliotropeae, 388, 390 
Heliotropism, 64 
Helleborus niger, 327 
Helonias, 303 
Helophytes,409 
Helvellales, 264 
Henbane, 391 
Henna, 372 
Hepaticje, 283 
Hepburn, 94 
Herb, defined, 139 
Herba Majoranae, 397 
Hertwig, 64 
Hesperidin, micro-chemic test for, 82 
Hesperidium, 209 
• Heterocysts, 229 
Hevea, 94 
Hevea braziliensis, 355 
Hibiscus Syriacus, 363 
Hilum, 
of ovule, 19 
of seed, 214 
of starch grain, 76 
Hip, 207 
Histology, defined, 1 
of Aconitum, 132 
of a dicotyl root, 127, 131 
of annual dicotyl stem, 140 
of anther, 190 
of Aristolochia Sipho stem, 140, 
144 
of bark, 149 
of California Privet root, 127, 
131 
of Cascara Sagrada, 149 
Histology of dicotyl tuberous root, 132 
of dicotyl roots, of primary 
growth, 125, 126 
of secondary growth, 126, 127 
of dicotyl stems, 140, 146 
of fern lamina, 38, 39 
root, 36, 37 
sori and sporangia, 40, 41 
stem, 33, 36 
stipe, 37 
of filament, 190 
of fruits, 211, 213 
of Greenbrier stem, 153, 154 
of herbaceous monocotyl stem, 152 
of leaves, 167, 176 
of mericarp, 212 
of monocotyl stems, herbaceous, 
152 
woody, 153, 154 
of perennial dicotyl stem, 143, 144 
of seeds, 215, 218 
of Vanilla capsule, 211 
Holdfast, 244 
