1904] 
Nerium Oleander, transpiration of leaves 
286, 447 
Newcon FCs ie Uebel 160; on 
thigmotropism of roo Too 
New York Hortcultiral Society, nat 
of “abner 1 Conference on plant 
breeding and hy bridization 470 
croferics Murril 13 
ungus 
ae pvempes havea 
embryonal substance 235 
hele aaee 155 
Nucleus, Némec on a er ron fusio 
232 illi ivisio 
ence on Se on 231 
atshar pede Rakes 394 
O 
Oaks, variation 401 
Oangium, defined 246 
Oedogonium, aNibar organs 2 
Oenothera, Mackenzie on Oe clavi- 
ormis 52 
Olea iia ig! Peete 285, 447 
Olneya tes 
Olsson- ‘Sefer, Pp. , 152, 309, 310; on telma- 
243. 
Oogenesis 258; in Albugo Ipomoeae- pee 
; he dra I; 
uranae gee in Ephe trifurca 
in Vaucheria 
Oomycetes 259 
Opuntia 54 
Orchids, Holm on roots 307 
hi Im 
Orthocarpu us, Heller on 395 
Ornithophily, Fries on 1 152 
Osmosis, Nathansohn on 477 
Osterhout, G. E., on Atabis and Aulosper- 
mum 2 
sew ge W. J. V., on cytological tech- 
nique 
Otidea Sitick, Guftiiernall a 224 
Overton, B., on ceprhencgeneee in 
corniculata, 
aecidia 66. 
Oxidases, Porodko on 151 
FP 
Pachylophus, elas on 2 
Panicum, — m 299; o paiile 2098; 
virgatum 
INDEX TO VOLUME XXXVIII 
489 
peer iss E.. onregulation of turgor in 
olds 479 
Papaveractae, 7 on seed-coats 306 
m, artificia 
Par vias "6. “rade "Bejoinelcus* 468 
Parish, S. B. 459 
Parkin, J., and Pearson, on Ceylon pata- 
Barkineonis microphylla 54 
Parmelia, Borreri 271; conspersa 271 
Pamulariella, Hennings on 23 
a 54 
on 311; in 
alictrum purpuras- 
ns, Ove n 224 
Puineloin aimidi atum 299 
Patanas, Ceylon, Parkin and Pearson on 
see on ae 
a 
Patouillard, N., on Seuratia 313 
hae te Prantl’s “Lehrbuch der Botanik”’ 
150 
pia H. H. W., Parkin and, on Ceylon 
as 309 
eas, pom ae n beans 
Peck, C. H., Algshan fungi 73} on new 
species of fungi 2 a 
Peirce, G. J..21 
nak coger guste clandestinum 461 
Peltandra inica, central ae 166 
Peltistroma, . Henhi ngs 0 
Pericarp of Me locanna, ‘Supt on 307 
Per “Fragmenta florae 
a8; arlo WO; Per 
Margaret ag Flahault, ‘a 239, 3193 
c Fujii, K. 320; 
