2i8o 



SUBJECT INDEX 



Parietal layer, primary, 1359 



Parthenocarpy, 1525-7 



Parthenogenesis, 1475, i477 



Passifloraceae, 1694 



Passion Flower, 1694 



Patouillard, 2140 



Patterns in flower colour, 1153 



Payer, 1095, iioo, iioi, 1105 



Pax, 1836, 2032, 2086 



Pedaliaceae, 191 5 



Pedicel, 1083 



Pedicel, anatomy of, 11 15 



Peloria, 1 100, 1 156 



Penduliflor>-, 1074 



Pepo, 1538 



Perdita TBee), 1260 



Perianth, 1083, 1144-50 



— asymmetric, 1 1 5 5 



— colour in pollination, 1253 



— evolution, 1 166 



— functions in anthesis, 1 153-5 



— withering, 1480 

 Pericarp, 1527 

 Pericladium, 1142 

 Perigone, 1 144 

 Perigyny, 1085, 1103 

 Periplasmodium, 1365 

 Perisperm, 1384, 1462, 1495 

 Personales, 1907 

 Persoon, 2134, 2138 

 Perttula, 1281 



Petals, histology, 1165 



— structure, 11 59 



— vascular supply, 11 65 

 Petaloid sepals, 11 11 

 Petalomania, 11 13 

 Petal-sepal intermediates, 1160 



Petoiiriis sciureus, (Marsupial) as pollinator, 



1298 

 Philesiaceae, 200J 

 Phoranth, 1079 

 Phyad, 2126 



Phyllodes in Monocotyledons, 1966 

 Phyllospermae, 1226 

 Phyllospory, 1201 

 Phytolaccaceae, 17 17 

 Piperaceae, 1738 

 Piperales, 1737 

 Pistil, 1202 

 Pittosporaceae 1646 

 Placentae, 1208 

 Placentation, 1224-30 



— free central, 1229 



— in coenocarpous ovaries, 1226 

 Plantaginaceae, 1891 

 Plantaginales, 1891 

 Platanaceae, 1647 

 Pleiochasium, 1075 

 Pleiomery, 11 06 

 Plumbaginaceae, 1893 

 Plumbaginales, 1893 



Plumule, abortive, 1596 



Pollen, 1359-79 



— ■ chemical analysis, 1364 



— flowers, 1260 



— fodder, 1364 



— green in Lythriim, 1364, 1367 



— longevity, 1433 



— starchy and fatty, 1364 



Pollen grains, 1086 



Car ex, 1364 



external markings, 1367 



forms, 1368-76 



germination, 1433 



mitosis, 1377-9 



outline, 1370 



permanent tetrads, 1373 



prothallial cell, 1376 



Ranales, 1375 



size, 1 37 1 



systematic importance, 1371 



wall, 1362-4 



Pollen mother cells, 1197, 1359, 1360 



division, 1360-2 



formation, timing, 1359, 1360 



Pollen tubes, 1086, 1433, 1436-41 



callose plugs, 1436 



chemotaxis, 1439 



ectotropic and endotropic, 1439, 1441 



haustoria, 1437 



multiple, 1437 



rate of growth, 1437 



Podostemaceae, 1682 



— pseudo-embr>'o-sac, 1423 



— seedling development, 1596 

 Polar nuclei, 1419 

 Polemoniaceae, 1894 

 Pollination, 1086 



— hybrid reactions, 1435 



— mechanisms, types of, 1281 

 Pollination, modes of, 2181-2358 



— Acer negundo, 1804 



— Aconituin uapellus, 1626 



— Alisma plantago, 1977 



— Allium ursimnn, 2024 



— Anacamptis pyramidalis, 2099 



— Antirrhinum tnnjus, 191 9 



— Aqiiilegia vulgaris, 1624 



— Arisaemo, 2018 



— Arctostaphylos uva-ursi, 1865 



— Arctotidae, 1961 



— Aristolochia clematitis, 1706 



— Arum maculatum, 2017 



— Asarum europaeum, 1338 



— Asclepiadaceae, 1341 



— Aspidistra lurida, 1303 



— Aster novi-belgii, i960 



— Banana, 1298 



— Bauhinia megalandra, 1 297 



— Berberis vulgaris, 1 3 1 5 



— Bignonia capreolata, 1299 



— Calanthe masuca, 21 14 



— Caryophyllaceae, 1728 



— Catasetum, 21 15 



— Cattleya, 2 1 1 2 



— Centaurea cyanus, 1963 



— Cent rant bus ruber, 1 944 



■ — Cephalanthera damasonium , 2102 



— CeratophyUum demersum, 1293 

 • — Chenopodiaceae, 1723 



• — Chrysanthemum leucanthemum, 1304 



— Chrysanthemum segetum, 1961 



— Corallorhiza trifida, 21 12 



— Coryanthes speciosa, 1340 

 • — Corydalis, 1636 



— Crucianella stylosa, 1344 



— Cyclamen, 1876 



— Cypripedium, 1339 



