INDEX TO VOLUME X 
571 
Hesperis, chromosomes of, 352 
Hibbertia, 52, 181 
Hitchcock, A. S. Type species of the first 
100 genera of Linnaeus’ Species Plantar- 
um, 510 
Holcus lanatus, Sorghum, vulgare, 511 
Homalobus, 486 
Homeria, 178 
Horticulture, sterility in relation to, 474 
Hovea, 47 
Hybrids, pollen- and seed-sterility in, 462 
Hydrocotyle, 528 
Hydrodictyon, 392 
Hvdrogen-ion concentration as related to 
the Fusarium wilt of tomato seedlings, 
537; the effect of the, on the protoplasm 
of the root hairs of wheat, 211 
Hymenophyton, 531; flabellatum, 177 
Immunity induced by saturation of the 
soil, experiments dealing with, 141 
Incompatibilities, the physiology of, 459 
Influence of plants on the air in houses, the, 
383 
Inheritance of flower types and fertility in 
the strawberry, the, 259 
Ionidium filiforme, 53 
Iron, the availability of, in nutrient solu¬ 
tions for wheat, 203 
Isoelectric point for plant tissue and its sig¬ 
nificance, an, 412 
Isopogon, 52 
Ixia, 178; africana, chinensis, 512 
Jacksonia, 183 
Johnson, Arthur Monrad. Crvptomor- 
pha, a new section of Saxifraga, 394 
Jordanon, 244 
Jovellana, 534 
Jungermannia excisa, archegonium of, 158 
Juniperus virginiana , 506 
Justicia betonica, sexangularis, 512 
Kauri pine, 517 
Kennedya, 47 
Kentrophyta, 486 
Kingia, 184 
Kleinhovia hospita, 507 
Knightia excelsa, 522 
Kochia, 179 
Krauhnia, 486; frutescens , 492 
Lambertia formosa , 52 
Laportea gigas, 44; moroides, 43 
Larix decidua, 506 
Lathyrus, chromosomes of, 352 
Laurelia, 534; Novae Zealandeae, 523 
Lemna, the embryo of, 336; minor, perpu- 
silla, 336 
Lemon trees, optimum soil-moisture con¬ 
ditions for, 134 
Lemons, internal decline of, I. Distribu¬ 
tion and characteristics, 67; II. Growth 
rate, water content, and acidity of, at 
different stages of maturity, 117 
Lentinus lepideus, 399 
Lenzites sepiaria, trabea, 399 
Lepidophytineae, cambium of, 505 
Leptopteris hymenophylloides, superba, 530 
Leptospermum ericoides, 519; laevigatum, 
176; Nichollsii, 525; scoparium, 519 
Leschenaultia formosa, 180 
Leucopogon, 53, 183 
Libertia, 534 
Libocedrus Bidwillii, 526 
Licuala Muelleri, 42 
Ligustrum ovalifolium, experiments in ring¬ 
ing, 372 
Lilac, experiments in ringing, 366 
Linnaeus’ Species Plantarum, type species 
of the first 100 genera of, 510 
Linneon, 244 
Liquidambar, 174 
Liriodendron tulipifera. 506 
Litsea glutinosa, 506 
Livistona australis, 49, 174 
Lobelia gibbosa, 53 
Lomaria, 55 
Lomatia, 54 
Loranthus, 47 
Lunularia cruciata, 522; vulgaris, arche¬ 
gonium of, 158 
Lychnis, 270; dioica, 223, 271; diurna, ves¬ 
per tina, 223 
Lycopersicum esculentum, 71, 537 
Lycopodium, 531; cernuum, 49 
Lygodium, 41; articulatum, 519, 532; scan- 
dens, 44 
Lythrum Salicaria, studies of, I. The effi¬ 
ciency of self-pollination, 440 
Macrozamia, 49; Fraseri, 180; spiralis, 48 
Maltose or phloridzin that is abundant in 
apple tissue, is it?, 288 
Mangifera monandra, 506 
