CCCiv PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Odontoglossum x ' Theodora,' F.C.C., 

 lxxiii 



„ X Wyonianum, A.M., 



lxix 



" Oecology of Plants," E. Warming, 239 

 Oenothera hybrids, 552 

 ,, sp., ccxxii 

 Olearia, 128 



Oligobotrya Henry i, 129 



Olive culture in Northern Africa, 129 



Oncidium barbatum, B.C., lxxiv 



„ Charlesworthii, F.C.C., clxii 

 ,, X hybridum, cclxxvi 

 ,, pumilum, B.C., clxx 



Retemeyerianum, B.C., clxiv 

 Onion maggot, 104 

 „ the wild, 552 

 Opuntia rubricata, 552 

 Orchard apples, 518 



„ manuring, 552, 553 



. survey of Jackson County, 129 

 ,. starting young, 311 

 „ tillage v. grass in, 518 

 Orchid committee meetings, Ixii, clx, 

 cclxiii 



„ hybrids, xxxvii, cxiv, cxvi 

 „ portraits, 130, 311 

 c; Orchid Stud Book," R. A. Rolfe and 



C. C. Hurst, 406 

 Orchids, albinism in, xxxiii 



and their commensal fungi, 313 

 ,, and Mendelism, xxxiv 



evolution in symbiosis, 132 

 ,, from Samoa, new, 132 

 ,, in the Rockies, 132 

 Orchid malformations, xxxii, xxxiii, 

 xxxiv, xxxvii, xxxviii, xl, xlii, cxviii, 

 ccxxx 



Orchids, variation in, cxiv 



Oyster- shell scale, 553 



" Our Forests and Woodlands," John 



Nisbet, 67 

 Oxalis ceruua, dispersion of, 342 

 Oxidizing power of roots, 560 



Packing fruit for export, 133 



Paeonia, ' Queen of Singles,' A.M., cxlvi 



., ' Leonora,' A.M., cxlvi 

 Paeonies, 553 



Chinese, 39 

 Paeony, double yellow tree, 313 

 Pansies, ccxxxi 



the British, 174 

 Paraffin, action on tree roots and soils, 

 133 



„ emulsion, 122 

 „ spraying trees in leaf with, 133 

 Parasites of insects, 293, 308, 534, 543, 



568, 572 

 Parasitic rose canker, xxxii 

 Parsley at Wisley, 1908-09, 90 

 Parsnips, diseased, xxxiv 



from wild stock, xxxvii 

 Parthenocissus tricuspidata, 554 

 Parthogenesis in Nicotiana, 551 



in Pinus, 555 

 Paton, J. Aikman, on some hybrid 

 tuberous Solanums, 53 



I Peach Aphis, 133 



,, die back, 134 



„ weevil, control of it, 554 

 Peaches, shot-hole in, cxxv 

 Pea, malformed, cxxi 

 Pear, ' Blickling,' F.C.C., xliii 



,, damage by hail, xxxviii 



,, shoot, structure of, 313 

 Pears for export, 519 

 Peas, commended, cxxix, cxxx 



,, hybridization of, 542 



,, inheritance of character in seeds, 

 xxxix 



Peatmosses, poisoning in, 134 

 Pecan, cultivation of, 135 

 Pecans, cultivated, 554 

 Peganum Harmala, germination of, 539 

 Pelargonium, ' His Majesty,' A.M., cclx 

 Peliosanthes violacea var. Clarkii, 554 

 Pennisetum hybridum atrosanguineum, 

 313 



Pentadesma Kerstingii, seed of, 135 

 Pentstemon, a comparative study of, 313 

 ,, ' Clad in Beauty,' XXX, clvi 



'Myddelton Gem,' A.M., 

 ccxlviii 



,, ' Schwester Sophie,' XXX, 



clvi 



Pentstemons at Wisley, 436 

 ! ' Perfect Garden : how to keep it 

 beautiful, The,' W. P. Wright, 268 

 Peridermium Strobi, 535 

 Phaius pauciflorus, B.C., clxxi 

 Philbrick, Miss H. C, on the Lily of the 



Valley, 36 

 Phlox, ' Croesus,' XXX, cliv 

 ,, decussata, sport in, cxxv 

 ,, ' Esperance,' XXX, clvi 

 „ ' Espoir,' XXX, cliv 

 „ ' G. A. Strohlein,' XXX, clvi 

 „ ' Mme. M. Carvalho,' XXX, cliv 

 ,, ' Miss Lingard,' XXX, cliv 

 ,, ' Mounet Sully,' XXX, clvi 

 ,, ' Muriel Rogers,' XXX, cliv 

 ,, ' Sesostris,' XXX, clvi 

 ,, ' Snow Queen,' XXX, cliv 

 Phloxes at Wisley, 446 

 Phoenix Roebellini, 313 

 Phrygia, flora of, 301 

 " Physiography for Schools," R. D. 



Salisbury, 403 

 Physiology of pruning, 330 

 Picris formosa, 555 

 Pinus Bungeana, 135, cxxiv 

 ,, edulis, 555 



Jeffreyi, 555 

 ,, parthenogenesis in, 555 

 ,, Sabiniana, cones of, cxxi 

 Pisum sp., etc., cxvi 

 Pitophora, 135 

 Plagiospermum sinense, cxiv 

 Plant dispersion, remarkable instances of, 

 342 



„ life and ultra-violet rays, 319 

 " Plants and their Ways," Ernest 



Evans, 245 

 Plants containing cyanogen derivatives, 



135 



Platanthera chlorantha spurred, 555 



