CCXCviii PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Potato brown rot, 380, 640 

 scab, 372 



„ canker, 362, 368, 372, 376, 377, 

 380 



„ cultivation, 279, 639 

 „ diseases, 275, 278, 279, 280, 281, 

 362, 640 



„ ' Erin's Queen,' A.M., 572, ccxxiv 

 „ tertilizers, 280, 475 

 ,, fungi in, 385 

 „ globular bodies in, 385 

 „ ' Great Scot,' A.M., 573 

 „ industry in Colorado, 475 

 ,, leaf blotch, see vol. xxxvi, p. 618 

 ,, ,, curl, see vol. xxxvi, p. 618 

 ' Scottish Prolific,' A.M., 572, 

 ccxxiv 

 ,, seed, 476 



,, spongy bodies, &c., in, 279 



spraying, 280, 476, 639 

 ,, streak disease, ccxix 

 „ ' Toogood's Tremendous,' A.M., 

 574, ccxxiv 

 tumour, 362, 368, 369, 376 

 ,, wart disease, varieties affected 

 by, 281 



Potatos, degeneration of, 475, 476 

 „ grafts of, 475 

 ,, selected from trial, ccxxiii 

 tried at Wisley, 1911, 569 

 Potentilla delphinensis, 310 

 „ frigida, 66 

 ,, nivea, 66 

 Poterium Sanguisorba, 526 

 " Practical Flower Garden, The," by 



H. R. Ely, reviewed, 588 

 " Practical Plant Physiology," by F. 

 Keeble and M. C . Rayner, reviewed, 

 436 



Praeger, R. L., " Open-air Studies in 



Botany," 192 

 Preserved pineapples, 272 

 Prickly pear, alcohol made from it, 236 

 Priestley, J. H., on electricity in relation 



to horticulture, 15 

 Primroses doubling, xxxiv 

 ,, malformed, xxxiii 

 ,, with green flower, xxxi, xxxiii 

 Primula Allionii, 87 

 ,, Auricula, 80 

 ,, farinosa, 309 

 ,, ,, varying, ccxviii 



,, graveolens, 309 

 ,, Littoniana, 282 

 ,, malacoides fasciated, xxx 

 ,, Maximowiczii, 476 



obconica ' Chenies' Excelsior,' 

 A.M., liv 

 ,, pedemontana, 86 

 ,, portae, 86 

 ,, pubescens, 307 

 ,, pulverulenta ' Hidcote strain,' 



A.M., cxxxvi 

 ,, sinensis abnormal, xxx 

 „ „ its genetics, 040 



,, ,, stellata malformed, ccxv 



„ viscosa, 309 

 Vitahana, 309 

 Winteri, F.C.C., xliii, xliv 



" Profitable Bee Keeping," by H. Geary, 

 439 



Propagation and cultivation of fruit 



trees in Japan, 95 

 Prostanthera pulchella, 476 

 Proteoteras aesculanum, 647 

 Protomyces tuberum solani, 372 

 Prumnopitys elegans, 50, 52 

 Prunus cerasifera, 447, 472 



„ gumming, 462 



,, incisa, 97 



,, japonica, 97 



,, microcarpa, 477 

 Miqueliana, 97 



„ Padus, 274 



,, Pissardii, 447 



,, Pseudo-cerasus var. Sieboldii, 97 

 ,, ,, var. spontanea, 



97 



,, serotina, 274 

 tomentosa, 97 

 varieties, 475 

 virginiana, 274 

 Pseudanthonomus crataegi, 234 



,, malaccense, 477 



Pseudomonas medicaginis, 233 

 Pseudopanax chatamicum, 57, 58, 59 

 Psoralea sp., 261 

 Psylliodes punctulata, 256 

 Pteris aquilina, spongy bodies present 

 in cells of, 279 

 ,, esculenta, 63 

 Pteronia incana, 477 

 Pteronus ventralis, 647 

 Puccinia asparagi, 273 

 „ coronifera, 478 



dispersa, 478 

 ,, graminis, 478 

 ,, malvacearum, 274, 631 



pruni, 638 

 ,, triticina, 478 

 Pucciniastrum minimum, 283 

 Pulvinaria innumerabilis, 647 

 Punnett, R. C, " Mendehsm," 581 

 Purslane, origin of, 319 

 Pyracantha angustifolia, 282 

 Pyronia X ' John Seden,' xxxii, xxxiv 

 Pyrus baccata var. mandshurica, 95 

 Gallery ana, 95 

 ,, floribunda purpurea, 447 

 ,, malus var. tomentosa, 95 

 ,, spectabilis, 95 

 ,, Toringo, 95 

 ,, varieties, 475 



Quercus Cerris, cxix 



,, coccinea, 445, cxix 



conferta," 493 

 ,, palustris, 445 

 ,, Robur, cxix 

 ,, rubra, 445 



„ sp., attacked by Peridermium, 

 472 



Quince rust, 275 



„ -with felted growth, ccxii 



Radishes attacked by Rhizoctonia, 275 

 at Wisley, 1911, 427 



