638 
INDEX TO VOLUME IV 
lonchocarpa, 262; Mixlfordae, 264; 
Nelsonii, 259; nivalis, 262; oligosperma, 
259; oreibata, 257; pterosperma, 266; 
sphaerocarpa, 266; sphaeroides, 265; 
sphaerula, 258; subsessilis, 267; un- 
cinalis, 265; ventosa, 264; vestita, 261 
Duration of leaves in evergreens, 145 
Effect of soil temperature on the growth 
of bean plants and upon their suscep- 
tibility to a root parasite, 513 
Electrolytes, measurement of the con- 
ductivity of, 411 
Elliott, John A. Taxonomic char- 
acters of the genera Alternaria and 
Macrosporium, 439 
Endemic flora, origin of, in Hawaii, 602 
Endophyllum circumscriptum, 49, 52; 
«decoloratum, 49, 52; Stachytarphetae, 
50, 52; Wedeliae, 49, 52 
Endophyllum-like rusts of Porto Rico, 44 
Endosperm color, inheritance of, in 
maize, 396 
Endothia parasitica, influence of climatic 
factors on the development of, 7; 
gyrosa, 7; radiralis, 7; Influence of 
temperature on growth of, 112 
Endothia pigments, 336 
Environment, as related to leaf-structure, 
533 
Evaporation, relation between, and 
plant succession, 161 
Evergreens, duration of leaves in, 145 
Fertility in Cichorium intyhus: the 
sporadic occurrence of self-fertile 
plants among the progeny of self- 
sterile plants, 375 
Fritillaria, rusts on, 368 
Fusarium Martii phaseoli, root parasite 
of beans, 513 
Galactose, toxicity of, for green plants, 
430 
Galls, produced by Gymnospor.angia, on 
cedar, 241 
Galvanometer, use of, with a 6o-cycle 
alternating current in the measure- 
ment of the conductivity of electro- 
lytes, 411 
Gates, Frank C. The relation between 
evaporation and plant succession in 
a given area, 161 
Gaultheria shallon, 154 
Green, Newton B. The use of the 
vibration galvanometer with a 60- 
cycle alternating current in the meas- 
urement of the conductivity of elec- 
trolytes, 411 
Grossenbacher, J. G. Crown-rot of 
fruit trees: histological studies, 477 
Gunner a petaloidea Gaud., a remarkable 
plant of the Hawaiian Islands, 33; 
manicata, 33 
Gymno sporangium glohosum, producing 
galls on cedar, 246; J uni peri-virgin- 
ianae, producing galls on cedar, 241 
Halorrhagaceae, 35 
Hanson, Herbert C. Leaf -structure 
as related to environment, 533 
Harris, J. Arthur. On the distribu- 
tion of abnormalities in the inflores- 
cence of Spiraea VanhouUei, 624; and 
Lawrence, John V. The osmotic 
concentration of the tissue fluids of 
Jamaican montane rain-forest vegeta- 
tion, 268 
Harvey, R. B. and True, R. H. The 
influence of light and chlorophyll 
formation on the minimum toxic con- 
centration of magnesium nitrate for 
the squash, 407 
Hawaii, Gunnera petaloidea occurring in, 
33; phytogeography of Manoa Valley 
in, 561 
Hawaiian species of the genus Cyrtandra, 
section Cylindrocalyces Hiilebr., 604 
Hawkins, Lon A. and Stevens, Neil E. 
Endothia pigments I, 336 
Hippocratea volubilis, host of Botry- 
orhiza, 48 
Hubert, Ernest E. (See Weir, James 
R., 327) 
