INDEX. 
cxlix 
Odontoglossum x ' Urania,' cxxii 
Uro-Skinneri, xxix 
Wentworthianum, 566 
Oenothera blandina, 229 
cana, 228 
Lactuca, 228 
laeta, 230 
Lamarckiana, 228, 229 
lata, 229 
liquida, 228 
mutants, 228 
pallescens, 228 
scintillans, 228 
velutina, 229 
Olea fragrans, 247 
Olearia canescens, 230 
flavescens, 230 
Gunniana, 230 
angustifolia, 230 
brevipes, 230 
microcephala, 230 
salicifolia, 230 
lyrata, 230 
macrodonta, 85, 581 
moschata, 581 
quercifolia, 230 
rugosa, 230 
stellulata, 230, 581 
subrepanda, 230 
Olives, stocks for, 247 
Olpidium Brassicae, 552 
Oncidioda x Charlesworthii, leaf- 
structure, xxix 
x Cooksoniae, leaf structure, 
xxix 
Oncidium incurvum, structure of 
hybrids, xxix 
macranthum, structure of 
hybrids, xxix 
sarcodes, 566 
Onion ' Autumn Triumph, ' xxxvii 
cultivation, 11, 230, 564 
effect of hail upon, xxxvi, xcviii 
fly. 230, 564 
neck-rot disease, 565 
pickling, 565 
' Premier,' cvi 
Onions, autumn sown, tried at Wisley, 
147, civ 
spring sown at Wisley, 156, cvii 
Onoclea Struthiopteris, 285 
Oospora piricola, 232 
Ophrys, mimicry in, 230 
Opuntia inermis, 571 
vulgaris, 571 
Orange, navel, 230 
oil, 565 
Orchard economics, 565 
Orchid hybrids, leaf structure, xxix 
Orchids in open air, 566 
Orchis foliosa, 284, 287, xxxvi 
incarnata, xxxvi 
latifolia, xxxvi 
maculata superba, 287 
Oreocarya dura, 250 
propria, 250 
Organic matter in soil, 231, 243, 
574 
Osmanthus Delavayi, 81 
Osmunda cinnamomea, 285 
Claytoniana, 285 
vulgaris, 285 
" Our Vegetable Plot," by S, Grave- 
son, reviewed, 540 
Oxidase in plant tissue, 231 
Oxy coccus macrocarpus, 553 
Ozothamnus rosmarinifolius, 581 
Paeonia albiflora, xxxv 
Broteri, xxxv 
Emodi, xxxv 
lobata, xxxv 
officinalis, xxxv 
Palms, transpiration of, 566 
Pampas grass, 283 
Papulospora sp., in potato, 239 
Parandra borer, 565 
Parrotia persica, 343 
Parsnip cultivation, 12, 566 
diseases, 566 
Pastinaca sativa, 248 
Pathology of plants, 236 
Payne, C. H., " The Chrysanthemum,'" 
533 
Pea ' Clipper,' F.C.C., civ 
cultivation, 567 
Peach, double, fruit, c 
' Early Crawford/ 222 
effect of ringing, 567 
' Elberta,' 222 
' Lady Palmerston,' 222 
' Late Crawford,' 222 
purple-leaved, c 
' Salwey/ 222 
scab, 238 
spot, 566 
' Valparaiso,' cv 
Peaches for drying, 222 
Lygus pratensis attack, 577 
Peanuts, 567 
Pear ' Arthur Chevreau,' 232 
attacked by capsid bugs, c 
' Beurre d'Amanlis,' 27 
' Beurre Clairgeau,' 27 
' Beurre Hardy,' 27 
blister mite, 232 
blossom, bacterial blight of, 232 
classification, 232 
' Catillac,' 27 
determination of names, 232 
disease, 232 
' Doyenne du Cornice/ 23 
fertility, 232 
' Jargonelle,' 23, 24 
leaf-spot, 210 
' Louise Bonne/ 27 
Rhizoctonia, 572 
' Snorter's Prolific/ cx 
storage, 528, 546 
thrips, 233 
' Williams' Bon Chretien/ 23, 24, 
27 
wood leopard- moth in, 227 
woolly aphis, 567 
Pears for pergolas, 298 
storage, 24 
when to gather, 24 
