CCCiv .PROCEEDINGS THE HOYAL HORTICUl/lHH; A I . S()(METV. 



Diohapetalum veneiiatum, 362 

 Diclilaena qiiercina, xxxiv 

 Dicksonia antarctica, 202, 205 



stems for orchids, 377 

 Dicoeciim hirimdinaceum, 354 

 Dicotyledons and Monocotyledons com- 

 pared, 455 

 " Die Reizbewegungen der Pflanzen," 



by E. G. Pringsheim, reviewed, 299 

 Dierama pulcherrima, 199 

 Digitalis purpurea, variation in, 185 

 Digitaria sanguinalis, 379 

 DiUwynia propagation, 453 

 Dimerosporium, 362 

 Dimorphism, 125, 362 

 Dioon, 357 



spinulosum trunk, 361 

 Dioscorea, 362 



fioridana, 638 



glauca, 638 



hirticaulis, 638 



paniculata, 638 



var. glabrifolia, 638 



quaternata, 638 



source of drug, 638 

 Diospyrus Kaki, 201 



morphology of, 362 

 Diplarrhena, xl 

 Diplodia natalensis, 160 

 Diploma in Horticulture, v 

 Dipnall, T. H., on springs and summers 



of 1911-12, 536 

 Dipodium sp., xl 

 Disa, 378 



lugens, 363 



sagittalis, B.C., xxxiv 

 Diseases of plants, 363. See also special 

 plants 



Disinfection of plants, 638 

 Diuris sp., xl 

 Dodecatheon, 373 

 Dolichos seineri, 374 



sesquipedalis, disease, 110 



sp., 374 

 Dombeya calantha, 363 

 Donors of plants, etc., in 1912, 617 

 Doryanthes, 192 

 Double flowers, 469 

 Douglas fir, 125, 136 



disease of, 636 



uses of, 363 

 Draba rupestris, xxxix 

 Dracaena, cambium in, 456 



fragrans cuttings, 4^)0 



Goldieana, xxx 



in Fiji, 2, 7 

 Dracaenas at Isole St. Leger, 518 

 Dracocephalum arguense, 126 



bullatum, cxxxviii 

 Drainage, principles of, 126 

 Drimys Winteri, 193, 197 

 Drosera, 383 



cuttings of, 456 

 Drosophila melanogaster, 369 



obscura, 369 * 

 Drosophyllum lusitanicum, ccxxxvii 

 Drought and gardening, 206 

 Dry andra longif olia ,167 



nobilis, 167 



Dryandra plumosa, 167 

 pteridifolia, 167 

 ramata, 167 

 tenuifolia, 167 

 Drymophoeus, 159 

 Dryopteris acrostichoides, 130 

 Duggar, B. M., " Fungous Diseases of 



Plants," 87 

 Duncan, F. M., " Romance of the 



Seasons," 84 

 Dune plants, evaporation of, 364 

 their anatomy, 638 

 Durham, F., on analysis of pea trials at 



Wisley, 67 

 Dyckia brevifolia, 191 

 remotiflora, 191 

 Dyke, W., " Cucumber Culture," 91 



" Manures for Garden and Farm 

 Crops," 311 

 Dykes, W. R., " Irises," 85 



Earle, A. M., " Sundials and Roses of 



Yesterday," 308 

 Earle, Mrs. C. W., and Case, E., " Garden- 

 ing for the Ignorant," 312 

 Earth almond, see Arachis hypogaea 

 " Earthworms and their Allies," by F. E. 



Beddard, reviewed, 85 

 Echeveria Purpusii, 191 

 Echinocactus, 380 

 Echinodontium tinctorum, 677 

 Echinopsis Eyriesii, 191 



minuscula, 364 

 Echium ' Pride of Madeira,' Ixv 



truncatum, A.M., Ixvii, Ixix 

 Edelweiss, 231 

 Edraianthus Pumilio, 233 



serpyllifolius major, 233 

 Education, Agricultural, 103, 104 

 Edwardsia grandiflora, 65 



microphylla, 193 

 Eelworm, 359, 643 



plants resistant to, 360 

 Eichhornia crassipes, 126 

 Elaeagnus argentea, 655 



Fredericii ' Anna ' fruiting, xxxix 

 macrophylla fruiting, xxxix 

 pungens, 65 



fruiting, xxxix 

 var. aureus maculatus, 65 

 variegatus, 65 

 Elaeis guineensis, 183 

 Elaeocarpus cyaneus, F.C.C., cxxxix, 

 cxlii 



Elaphidion villosum. 155 

 Electroculture, 126 



*' Elementary Lessons in Plant Life," by 



D. G. Scott, reviewed, 82 

 " Elementary Plant Biology," by J. E. 



Peabodj^ and A, E. Hunt, reviewed, 312 

 " Elements of Agriculture," by W. 



Fream, reviewed, 596 

 Eleocharis, 381 



Elkington, W. M., " The Small-Holder's 



Handbook," 595 

 Elliottia racemosa, 364 

 Elm disease, 639 



efiPect of drought, 397 



