1921] 



INDEX 



245 



Prunus virens rufula, 117 

 virginiana, 114, 115 



— demisya, 98, 115 



— mchinocarpa, 117 



pachyrrhachis, IIG 



Ptelea trifoliata, 148 



mollis, 99 



Pyrus sect. Eriolobus^ 49 



arbutifolia citropurpureaj 44 



— macrophylla, 43 

 rnelanocarpa pubescejis, 44 



— pumila^ 43 

 aromaticaj 59 

 bacccUa cerasifera. 54 

 betulifolia X elaeagrijolia, C2 

 Calleryana Fauriei, Gl 



graciliflora, 61 



tomentella, 61 

 cerasifera hyemalis, 54 

 congesta, 62 

 crassipeSj 60 

 deprcssa^ 44 

 Fauriciy 61 

 fcrruginca, 59 

 jloribunda, 44 

 hondoensis, 59 

 insueta^ 60 

 insulsa, 60 

 iwatensiSy 60 

 jucunda^ 60 

 Kavvakamii, 61 

 Kochnci, 61 

 laoscnaiSj 49 

 7nacroslipeSj 60 

 Maximomcziana, 60 

 mclanocarpa atropurpurca, 44 



— subpubescens J 44 

 rnokpoensiiSy 45 

 nambuanay 60 

 obovoidea^ 60 

 ovoid ca, 60 

 pulcherrima Arnoldiana^ 57 



rufofcnuginca, 59 



serrulata, 60 

 iremulajiSy 60 



ussuriensis hondoensis, 59 



— ovoidea, 60 



rz^Zis, 60 



Quercus alba, 141, 204, 208 



latiloba, 208 

 repanda, 208 

 X bicolor, 142 

 bicolor, 141 



X lyrata, 142 

 borealis maxima, 142 



— X imbricaria, 143 

 Catesbaci, 207 

 cincrea. 207 

 Cocksii, 208 

 Comptonae, 208 

 Durandii, 207 

 imbricaria, 142 



X inarilandica, 143 

 X rubra, 142 



— X velutina. 142 

 Jackiana, 142 

 laurifolia, 207 

 Leana, 142 



Quercus ludoviciana, 208 

 lyrata, 141, 208 

 macrocarpa, 141, 207 

 marilandica, 142, 207 

 Mohriana, 97 

 Muelilenbergii, 141, 208 

 nigra, 207 



trideutifera, 207 

 palustris, 141 



X Phcllos, 143 

 Phellos. 142, 207 



X velutina, 143 

 Prinus, 141, 208 

 rhombica, 207 

 rubra, 141. 207 



leucopliylla, 207 



— pagodaefolia, 207 



— triloba, 207 

 runcinata, 143 



Shumardii, 207 



Schncckii, 142, 207 

 stt:'ilata, 141, 208 



araneosa, 208 



Margaretta, 208 



paludosa, 208 



stolonifera, 208 

 tridentata, 143 

 velutina, 142, 207 



missouriensis, 226 



Rehder, Alfred. Azalea or Loiselcuria, 

 156 



New species, varieties and combinations 

 from the herbarium and the collections of 

 the Arnold Arboretum 42, 121, 174 

 Philadelphus verrucosus Schrader spon- 

 taneous in Illinois, 153 

 Rhamnus caroliniana, 149, 213 

 Rhododendron roseum, 151 

 Rhus canadensis, 148 



— copallina, 148, 212 

 glabra, 148, 212 

 microphylla, 99 

 Toxicodendron, 99, 148 

 trllobata, 99 



vernix, 212 

 Ribes gracile, 145 

 Robinia neomexicana, 164 



— luxurians, 165 

 Pseudoacacia. 148, 164, 212 



Rosa Carolina. 147 



dasistema. 147 

 palustris, 147 

 rubiginosa, 147 

 rudiuscula, 147 

 setigera, 147 



— tomentosa, 147 



Rubus alleghaniensis, 146 



— hamhuaarum, 179 



— canadensis, 146 

 Henryi bambusarum> 179 

 occidentalis, 145 

 rubrisetus, 146 



— villosus, 145 



Swingle, Walter T. A new species of 



Pistacia native to southwestern Texas, P. 

 texana, 105 



Salix, see Notes on American Willows. A 



