torr] 
Modry, bead work of 411 
Molliardia 
Monardella savebralia be haute ve 25% 
Morrow, G work of 4 
Moss, ae E., work of 321 
Mosses, Bolivian 163; Mexican 161; of 
work of 324 
Murdock, A. W., work of 481 
Murrill, W. A., rk of 162, 409 
Myxotheca 4 08 
N 
Nabokich, A. J., work of 2 
Nasturtium side pee Toalisiee 264; 
Naturhiches Pflaisgen faciiliies 
Navesink Highlands, vegetation ce 325 
Nawaschin, Sergius, work of 1 
Neljubow ms Th wate eae 27 
Nelson: Aven 261 
Neuberg, C., wor 
Newbigin, Marion I., work of 234 
A ios rate fi 402 
New Zealand, algae of ie _— 159 
Nidularia, morphology © 
Nienbur , Wilhelm, wo ae 247 
Nieuwland, J. A., work of 247, 409 
Nilsson-Ehle, H., work of 318 
Fs 
N = te rage — vegetation of 325 
oe ie of sr 
North “American. Flor 
Nor , work oe 238 
Nuclei ‘syndiploid 248 
Oats, inhibiting factor in 318 
Oenothera, gene etic studies in 68 
ac ©, ae of 411 
ridez 269; 
um palmat me fertile ke of 
siidecsha © ef 478 
: Opsianthes gaurioides 267 
Opuntia 161, 
Orchid, a new 400; jabs nl 496; Boe 
th Am 
ers 
Sees mn 
meethy los: 
Overholts, L. O., wor rk of 409 
Overton, j. B. 242 
as gh rie seacaiaticns of Xanthium 
seeds 
Palladine, W., work of 491 
Palmer, Edward 61 
INDEX TO VOLUME Lil 
501 
Pammel, L. ri _ of 248 
Pasanth mosse! 
achat pane sac of 328, 490 
Paniceae 407 
Panicate 409 
Paraguay, Leguminosae pee Convolvu- 
laceae of 408; plants of 1 
Parasitism, analysis of 249 
od in Taraxacum 167 
Pentstemon cera 272; perpulcher 
273; 8 
Permeabilit 
 eroxidase fe chromogens 491 
etals, ig of 3 
7 
*hacelia luteopurpurea 27 
-*haeostoma — 267; perviior 267; 
rhomboidea 267; xanthiana 
hilippine Caricohdeae 409; oni 161; 
orchids 4 Piperaceae 161; plants 
161; er 162; Urticaceae 162, 
Sisal ieee’ fedek heed be 
wy ww 
409 
Phlox aculeata 
 saiomiomerscigy e ate plants 241 
Phycomycetes 23 
Phyllocactus Fichlamii 163 
Physostegia, emb mee 218 
Phytomyxaceae 413 
eye Oey a new gree 158 
Pierce, Newt gee work of 1 
Piper, ’Bolivia 
Piperacene, Philippine 161 
Pitt 
Pit sn, a a 32 es 
Plant and a eding 
Plant Sageetin sage gr iin aad ucpeation 193. 
Polygonums, phe ibious 247 
Polypodium prolo ic we 161 
Pol 
Polytaenium quadriseriatum 407 
Potato, after-ripening of 306 
265 
Primula, hereditary factors in 317 
Pritchard, F. J. 169 
