1913] INDEX TO 
Orton, C. R., work be: * 33% 332 
Osawa, I. work of 
Ovarial injections 1 
Owens, Charles ae walk of 331 
Oxyrhynchus 9 
r 
Paleobotany, literature on 463; notes on 
Palm, a new erro 336 
Parajaeschkea 
——s —" plants 252 
anata: ‘Californian species 300; califor- 
nica 309; californica simplifolia 
Tryl 303; 
adenia subnuda rsti Cire 
Schottii 309; Schott puberula 3 
spinosa 312; Whee 
Fed? - M - ie Ianuginos 374 
klo, J., w 254 
Aci Ely aes 
Songer eau lies pandus 382; rex 
Periodicity of ara — 333 
Perkins, J, work of 4 
erymenium ruaco ooh 
Petry, E. im 5 vase of 331 
Petry, Loren C. 155 
Phacelia folios osepala 377 
Phloem of dicotyledons 236 
Phomopsis citri 93 
Phoradendron 94 
hosphorescence in plants 
Photometric leaves and shoots 408 
Phyllocarpus, seedling of ches septen- 
437 
oe 
Physcia tribacia 396 
Picea mariana, eS in 452 
Pilea 9 
Pilger, R., work of 9 
Pine-barrens of New 5 
tid associations of baavac! Coast 45 
Plant a in Sweden 328 
Plant 
Plants and | insects, homologizing of 462 
Plasmolysis, protopla asmic contractions 
resem 
— atrosp . 3909 
f 2 
Potentilla ee 375; iaik. dichroa 
375 
VOLUME LV 477 
Pott-Leendertz, R., work of 9 
Preston, Howa rd W. , “Key to the trees” 
30, 402 
rothallia, fossil 2 
Protista,n nuclei ge 
Protoc of Cokiciseus 155 
Puce aes 
Pulle, A. ak of 462 
Quehl, L., work of 332 
R 
Radlkofer, L., work of 94, 4 
Ranunculaceae povbahahx of 264 
Ray tracheids i in Coniferales 56 
Rea, C., work of 332 
Reed, Howard S. 421 
R r, A., work of 94, 332 
Revegetation of a denu area 80 
Reviews: r’s “Natural history of 
coal”? 170; Balls’s otton plant in 
Egypt” 329; Clements, Rosendahl, 
and Butters’ ‘Min ta trees and 
shrubs” 330; Collins and Preston’s 
“Trees the northeastern United 
States” 330, 402; Gliick’s = — 
und Sum ewichse”” 3 28; 
“Carolus Linnaeus’ "3305 B Haberland’s 
“ Physiologische Pflanze 402; 
Hartman’s “Protistet pare ag ee: 
Heinricher’s ‘Pa ischen Samen- 
pflanzen” 252; Janet’s “Le Volvox”’ 
403; Jongmans’ a Die pal botanische 
Literatur” 463; Mitlacher’s “Die 
offizinellen Pflanzen und D ? 4033 
Molisch’s “‘Leuchtende Pflanzen” 253; 
Newman’s “Plant b in Scandi- 
navia” 328; Ridgway’s ‘‘Color stand- 
rds and color nomenclature” 461; 
Russell’s “Soil conditions and plant 
growth” 167; Saccardo’s ‘“‘Sylloge 
Fungorum” 331 
paniculata 431 
ododendron 332 
Ricker, P. L. wont 
Riddle, L. W., wo: 
Ridgway, Ro rt Colo ‘standards and 
color tacts 
Rigg, George 
Ritter, G. E., I 
Robert, Mlle., work of 85, 
Rombach, Sara, work of 258 
Root-tubercles of sis teararabaactan plants 
254 
Rosaceae 94 
Rosendahl, = O., “Minnesota trees and 
shrubs” 3 
