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1917] 



INDEX TO VOLUME LXIII 



533 



"Bref och Skrifvelser af och till Carl 

 von Linne" 156; Jackson's "A glossary 

 of botanic terms" 156; Lotsy's " Evo- 

 lution by means of hybridization" 

 153; Moon's "The book of forestry" 

 154; Rydberg's "North American 

 flora" 325; Scott's "Theory of evo- 

 lution" 325 



Rhizina undulata, ascocarp of 282 



Richards, H. M. 83 



Riddle, L. W., work of 167 



Rigg, G. B. 415; work of 424 



Robertson, C. 307 



Rocky Mountains, subalpine plants of 



423 

 Roesleria and Pilacre 248 



Roots, excretion of acids 422; formation 



in Bryophyllum 25; Texas rot fungus 



of 334 . 



Rosa, gymnocarpa 508; imperfection of 



pollen and mutability no 



Rosen, H. R., work of 157 



Rubiaceae 422 



Rubus, aboriginum 506; acaulis 509; 

 argutus 506, 510; canadensis 506, 512; 

 carpinifolius 507; cuneifolius 505; 

 Enslenii 507; frondosus 506; hispidus 

 507; lucidus 507; macropetalus 504; 

 nigrobaccus 505, 509, 511; occidentalis 

 504, 509, 511; orange rusts of 501; 

 procumbens 506; pubescens 511; Ran- 

 dii 510, 512; sativus 505; stellatus 

 509; strigosus 509, 511; trivialis 507; 



vitifolius 504 

 Rydberg, P. A., "North American flora" 

 325; work of 423 



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Sabatia 86 



Safford, W. E., work of 166 



Sap, extraction of 528 



Schisandra grandiflora 522; cathayensis 



522; rubiflora 523 

 Schneider, C. 398, 516 

 Scott, W. B., "Theory of evolution 



325 

 Seedling of Dioscorea 334 



Seeds, temperature and life duration of 



169 



Senecio 421, 527 



Septobasidium 244 



Shantz, H. L., work of 160, 327 



Shepard, H. B., work of 526 



Shreve, Edith B., work of 326, 327 



Shreve, F., work of 332 



Shull, C. A. 83, 162, 330, 528 



Shull, G. H. 246; work of 246 



Skene, ML, work of 423 



Skottsberg, C, work of 423 



i) 



Smith, E. M., work of 526 



Smith, G. M., work of 330 



Smith, N. R., work of 86 



Smith, Pearl M., work of 334 



Soil, bacteriology 155; a new constituent 



528; moisture index 151 



Sorbus, Ambrozyana 401; hupehensis 

 aperta 403; laxiflora 404; obtusa 403; 

 tatsienensis 404 



Spessard, E. A. 66 



Spiraea teretiuscula 399 



Spirogyra, effects of barium, strontium, 

 and cerium on 406; sexuality of fila- 

 ment 486 



Sprague, T. A., work of 527 



Staining, manipulating organisms in 410 



Standley, P. C., work of 155 



Statice 86 



Stenophyllus 244 



Sterculiocarpus 168 



Stevens, F. L. 297; work of 330 



Stewart, A., work of 156 



Stewart, V. B., work of 85 



Stober, J. P. 89 



Stomata 94 



Strontium, effect on Spirogyra 406 



Subalpine plants of Rocky Mountains 



423 

 Subantarctic and New Zealand floras 423 



Succulents, respiration in 83 



Sulphur nutrition 330 



Synaedrys 167 



T 



Tammes, Tine, work of 165 



Taylor, Ara villa 414 



Taylor, N., work of 335 



Temperature, and moisture indices 165; 

 and nectar secretion 253; and respira- 

 tion rate 524 



Ternstroemites 168 



Theobroma 527 



Thuranthos 422 



Tobacco, mosaic disease of 245 



Tottingham, W. E., work of 330 



Translocation and cane sugar 87 



Transpiration 159, 326 



Trees, large 331 



Trelease, S. F., work of 159 



Tribroma 527 

 True, R. H., work of 422 

 Tunmann, O., work of 416 

 Tupper, W. W., work of 527 



u 



Uranthoecium 167 



United States, vegetational map of 332 



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