ff, 
Lyeoperdellon =i 
d ie tie 
Lynde, 
C.J, ae of 339, 340 
M 
- McAllister, fe ce of 441 
Macbride SF 
Macdougal, D. RS work = 536 
cNu tte W., wor - of 4 
Macranthera 15 
Magnolia, development of 1 
Magnoliaceae, primitiveness of 1 
] k of 167 
work of 542 
‘ 439 
Mega: sporangium, postsynapsis in 40 
] peg ge 
] soThe flora of Manila” 333 
] pee ae fungi 1 
Mexico, Liassic flora of 340; new plants 
of 158 
Michigan trees 77 
Microspermum 4 
Microsporangium, maturation phases in 
32 
Microtome knife, control of temperature 
a F. A., work of 339 
Mischocod: 
Mitosis, bibliography - in Con 
jugatae 254; angi Paha Po of 
84; a Oenothers 
Miyagi 
Masel history and See of 88 
Monocotyledony, origin of 5 
INDEX TO VOLUME LVII 
Mosses of New Zealand 
Mutants, cytology of 86; ot pares a7 
N 
Naoumoff, N., work of 1 
Natit vegetation and ae production 
355 
Nawaschin, S., work of 162 
Mectaes and ‘phylogeny 344 
elson, Aven 
ra of 
ealand, mosses ae 
pris: effect of shading on transpira- 
io: —_ oe 
Niccwia d,jJ.A oy! 159 
Nito) slvind. ltfaspor formation in 540 
Nitrite assimilation 544 
Nolte, A. be toi of 538 
Nopalea 
North “sin n flora 
ae aor M. gion 86, 339 
O 
Odontosoria 1 
158 
a 155; Lamarckiana, origin of 
453 heey e 166; mutations and 
Sheri 
Ohio nn distribution and development 
Oklahoma, trees ge phe of 159 
Olive, E. W., work of 250 
Oph 1553 a anatomy 
n, Marie, —— of 166 
Opperm 
Opun 137; culture of 253 
Orchids, of tropi ical America 159 
8 
Oxygen, réle in orninbeie 64 
i 
Pace, Lula, work of 443 
Paleobotanical notes 439 
eS —— flora of Iowa” 334 
rE 
ara. 
material imbedded in 70, 330 
