CCCvi PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 



Poplars in N.-E. America, 285 

 Porcellio attacking mushrooms, 787 

 Porosagrotis vetusta, 775 

 Potamogeton, American sp., 285 

 Potato ' Conquest,' 322 

 cultivation,. 492 



disease, 314, 491, see Phytoph- 

 thora 



' Evergood ' resistant to disease, 

 317 



' Great Scot,' 322 



' Irish King,' A.M., cxxviii 



' Langworthy, ' 322 



' Magnum Bonum,' 321 



scab, 793 



sprouts ingrowing, 301 

 ' Sutton's Supreme,' 322 

 tuber moth, 793 

 ' Up-to-date,' 317, 321 

 wart disease, 280, 321 

 ' What's Wanted,' 322 

 ' White City/ 322 

 Potatos, diseased, ccxxvii, ccxxix 

 importation, 794 

 selected from trial, cxxvii, 

 cxxviii 



Potentilla argyrophylla, cxxxvii 

 atrosanguinea, cxxxvii 

 ' Boule de Feu,' A.M., cxxxvii 

 Praeger, L., " Weeds," 442 

 Preston, H. W., see Collins, J. F. 

 Primula acaulis, 167-169, 171, 172, 

 219, 222, 224, 226, 227 

 double, malformed, xlv 

 var. balearica, 222 

 var. ' Evelyn Arkwright,' 

 101 



var. rubra, 171, 222, 225, 

 226 



var. Sibthorpii, 101 



x admontensis, 113, 119 



x adulterina, 127 

 alba, 114 



x alba, 125 

 alba plena, 222 

 albiflos, 131, 161 

 algida, 103, 167, 172, 173, 206 

 Allionii, 109, ill, 112, 117, 125, 



193, 221, 222, 224 

 alpestris, 222 

 alpina, 114, 222 



x alpina, 125 



altaica, 101, 171, 172, 222 

 ambigua, 222 

 ambita, 131, 142, 143 

 americana, 180, 181, 182, 222 

 amethystina, 131, 154, 213 

 amoena, 101, 167, 171, 172, 222 



genuina, 101 

 androsacea, 131, 133, 149, 150 

 angustidens, 131, 139, 166 

 angustifolia, 180, 183 



var. Cusickiana, 180 

 var. Helenae, 180 

 apennina, 107, 111, 123, 125, 



222, 224 

 x Arctotis, 114, 125 

 argutidens, 131, 153 

 atrodentata, 187 



Primula atropurpurea, 222 

 Aucheri, 167, 170 

 Auricula, 103, in, 113-17, 119, 



122, 125, 191, 193, 220, 222, 



225 



forma exscapa, 104 

 forma monacensis, 104 

 forma serratifolia, 104 

 var. albocincta, 104 

 var. albomarginata, 104 

 var. Balbisii, 126 

 var. Bauhini, 113, 222 

 var. ciliata, 104, 113, 115, 



222, 223, 225 



x spectabilis, 113 

 var. Obristii, 104, 222, 



225, 226 

 var. Widmerae, 104, 222 

 x hirsuta, 114 

 auriculata, 155, 168, 172, 173, 

 206 



Balbisii, 104, 222 

 baldensis, 222 

 baldschuanica, 168, 173 

 Balfouri, 201 



Barbeyana, 131, 133, 149, 150 

 barblcalyx, 131, 142, 143 

 bathangensis, 131, 145, 146 

 Bayernii, 168, 173 

 Beesiana, 132, 137, 166-168 

 begoniaeformis, 132, 142, 143 

 bella, 132, 163-165 

 bellidifolia, 151, 187, 188, 199, 



204, 206, 207 

 bellunensis, 104, 222 

 Benkoiana, 222 



x Berninae, 123, 127, 128 

 bicolor, 222 

 biennial species, 185 



x biflora, 116, 121, 122, 127 



x Bilekii, 120 

 Biondiana, 132, 156 

 biserrata, 132, 137 

 blattariformis, 132, 145, 146 

 Bonatiana, 132, 163, 164 

 Bonatii, 132, 142, 143 

 Bonjeani, 223 



borealis, 132, 134, 156, 168, 



172, 180, 182 

 Bornmulleri, 209 

 Boveana, 168-170 



x Bowlesii, 124, 127, 227 

 bracteata, 132, 151 

 brevifolia, 132, 154 

 breviscapa, 132, 147 

 Broadheadeae, 180, 181 

 bullata, 132, 150, 151, 219 

 Bulleyana, 132, 166, 167, 172 

 cadinensis, 223 



x caesarea, 119 

 caliiantha, 132, 161 

 calycina, 106, 223 

 Candolleana, 223 

 canescens, 223 



capitata, 132, 154, 155, 187, 



188, 199, 204-7, 220 

 capitellata, 167, 172, 206 

 carniolica, 104, 105, m, 115, 



125, 221, 223-5 



