1907] 



INDEX TO VOLUME XLIV 



473 



Thioploca, Lauterborn on 318 

 Tomato rot, Smith on 394 

 Torreya calif ornica 226; taxifolia 226 

 Tower's "Evolution in Leptinotarsa" 456 

 Townsend, CO., work of 76 

 Toxylon pomiferum 225 

 Toxicity of solutions, Fitch on 157 

 Transeau, E. N., personal 79, 464 

 Trees, names of North American 225 

 Trelease, William, personal 79 

 Treub, Melchior, personal 79 

 Tricyrtis, Queva on anatomy 237 

 Triglochin maritima, anatomy 179 

 Tropics, Fritsch on algae 73 

 Tubers of Dioscorea, Queva on 395 

 Ttimion calif ornicum 226; iaxi folium 226 

 Tumor, Smith and Townsend on bacterial 



76 



u 



Ule, E., work of 314 



Ulmus racemosa 225; Thomast 225 



Underwood, L. M., personal 240; work 



of 317 r O 



Uredineae, morphology of spore forms ai 

 Uredospores, morphology of 88; primary, 



Christman on 463 

 Uromyces, morphology of spores 81 

 Uvularia and Tricyrtis, Queva on anatomy 



of 237 



V 



Van Calcar*5 "Immunitats- und Speci- 



fitats-Lehre" 151 



Vascular system, of ferns, Tansley on 74; 

 of Potamogetonaceae 162 



Vaucheria sessilis, effect of solutes on 259 



Vegetation in Somerset, Moss on geo- 

 graphic distribution 156 



Velenovskf s " Vergleichende Morphoio- 



VinS, Druce and, "DiUenian Herbaria" 



67 

 Violets, Brainerd on 317; House on 317 



Vochting, H., work of 315 

 Volvaria eurhiza, Fetch on 233 



Vries, Hugo de 401; "Plant breeding" 



147 



w 



Wallace, Alfred Russell, personal 320 

 Washingtonia, filifera 418; filifera micro- 



sperma42o; filifera robusta 420; fruit 



of 425; gracilis 420; Sonorae 421; seed 



of 425; the genus 408 

 Washington plants, new 302 

 Water, Dixon on ascent 461; plants, 



germination of 37S; subsoil, Pearson 



on 239 

 Weberbauer, A., work of 313 

 Wettstein, Richard, personal 464 

 Wheat, effect of solutions on 264 

 Whitford, H. N., personal 340 

 Wieland, G. R., personal 79 

 Wigglesworth, Grace, work of 159 

 Wilcox, E. Mead 76 

 Willis, J. C., work of 319 

 Witte, H., work of 399 

 Wittrock, V. B., work of 397 

 Woodburn, W. L. 227 



X 



Xeroph}^ic character of g>Tnnosperms, 



S topes on 77 



Y 



brevifolia 226; 



Yamanouchi, Shigeo 142, 31?, 3?^ 

 Yeast elvcoRen and sporulation m, Kom 

 on 157; origin of, Viala and Pacottet on 



154 

 Young, Mary S. 89 



Young, Robert T. 321 



Yucca arborescens 226; 



elata 226; radiosa 226 



z 



Zahlbruckner, A., work of 156 

 Zannichellia palustris, ^^atomy 176 

 Zea, crossing of Reana and, \ ilmonn on 



239 

 Zostera marina, anatomy 172 

 Zymase from Aspergillus, Jumtzky on 399 



