1922] 
Lohnis, F., work of 505 
Lowe, E. N., work of 422 
Lupo, Patsy 486 
M 
ggenenig” T. H., “ North American slime- 
I 
MacDougal, D. T., work of 334 
McDougall, W. B "9 
ork of 2 
Maice, pe ie of hiocapiadl types 337 
ally, W., work of 332 
Maravalia 60; pallida 60 
s 
Melin, E., work of 506 
Mellor, Ethel, Tyee of 423 
Merismosti 
Michigan, pine formation 26 
pri flora 244 
Milesia uel be 
Misciscippe oe s of 422 
Modilevski, J., work of 503 
ee 160 
Moore, S. LeM., work of 159, 160 
ens of forest trees 506 
N 
Neottia N: ie fiir cytology of 503 
Pd Caledonia, plants of 159 
w Jersey, ‘fo rest geography of 80 
Nitrogen, content in alfalfa 401; rage 
yes ee ts 2473 fixati in 
rica 
Noack, me apa of 419, 500 
Noé, ,9 c: 414 
North os a 415 
-Norton, J. F. 5 
Nuclear division: new type of 3 
Nutrient salts of low Sclubitity. oe 
Olsen, C., work . ae 
Onions, pink root of 3 
Orchid pers oie ntaaiie c germination 
Orobanchaceae and Scrophulariaceae i 
Orthogenesis 282, 284 
iy 
ope ~ gi of 498 
Peperomia 133; amphoricarpa 138; ari- 
olia 142; astyla 137; Bakerii 145; 
a campylotropa 137; 
1 38; cordulata 143 
rmis 143; Saeeey 41; gracil- 
lima 138; gpl Pen 144; Killipi 
INDEX TO VOLUME LXXIII 
511 
1433, en 140; maculosa 146; 
mexicana monticola 1 36; Muel- 
leri 142; ovato- salts 139; Painteri 
136; re oe Se peltata 139} 
news 145; podocarpa 144; pub- 
rula 14 schizandra 137; schizo- 
stac aa I 383 ae 1393 Se 
145; tecticola 142; tenuimuc — 
137; Tuerckheimii bass varieg: ame 
Peridiniales, asia 329 
erkins Tomes i ork of 244 
Permeabili 
Sistas ie aa cil: of 5 
Phakopsora, Crotonis on “Vitis 59 
Phane are ave 160 
Pine formation, Michigan 26 
ie ro ions 332 
relations of 2 
Plant diseases, bioche ort of 287 
Pool, R. J., work 0 of 246 
Porphyra, ytology of 331 
Po tassium sad growth of wee 424 
Potato w transmission of 333 
Prairie vegetatio n 158 
mila 
66; Spegazzinii 66; cee rellae 66; 
Triumfettae 66 
Pucciniosira pallidula 67 
R 
Raber, O. L., work of 336 
Rand olph, L. F. 7 
sedis Indigoferae 6 
Rayner, M. Cheveley an: work of 502, 
— ae hy Pon of 248 
- Sey of 49 
Regeneration, cueenin relations of 
4 
Re a “Devonian floras 
Bergerstein’s “Die Transpiration der 
Pflanzen”’ 239; rmann and Clark’ 
Eve 
xinkuckee” 242; Hedric k’s 
and plant 153; 
ig s “Root devi oo in grass- 
land formation” 412 
oO 
Di a EEE A a 
State Z 
opus, ine of 422; nutrients for 
421 
