3i6 



INDEX. 



Palladine (Transpiration als Ursache der 

 Formjinderung etiolirter Pflanzen. 

 Ber.d.Deut. Bot.Ges.8 :364. 1890), 



23 

 Papaz^er, 271 



somnt'fer-um, 10 

 Pastinaca sativa, 143,144, 243, 244,259,261, 



286 

 Paver (Mem. sur la tendance des racines 



a fuir la lumiere, Compt. rend. d. 1. 



Acad. d. Sc. i : 1194. 1842), 5 

 Peas, etiolation of, i 

 Peltandra Virginica, 144-147, 215, 2l6, 



220, 257, 259, 286, 296 

 Pericycle in etiolated stems, 251 

 Periderm, formation of on woody etio- 

 lated stems. 249 

 Pertz, researches of, 305 

 Petiolate leaves, etiolation of, 257 

 Petutiia, 275, 276 

 Pezizaceae, relation to light, 5 

 Pfeffer, on nature of etiolation (Pflanzen- 



physiologie. 2: 114. 1901), 284 

 P/iaseolus, 26, 147- 149, 224, 230, 246, 263, 

 265 

 multijiorus, 8, 9, 30, 226 , 282 

 vulgare, 16 

 Phegopteris effiisa, 34 

 Philotria Canadensis, 217, 2i8 

 Photo-epinasty, 14, 23 

 Photo-hyponasty, 14, 23 

 Phototonus, 18, 216 

 Phy corny CCS, I9i 31 

 Phyllocactus latifrons, 237 

 Phytolacca decatid) a, 149, 150, 243, 247, 



249, 251, 263, 265, 267, 286 

 Pilot ulus, 291 



Pisum sativum, etiolation of, 7, 34 

 Pilobolus tnicrosporus, 17, 30 

 Podophyllum peltatum, 150, 152, 220, 243, 



244, 259, 261, 263, 265, 269 

 Poggioli, S. (Opuscules scientifiques de 



Bologne, i : 9), 4 

 Polygonum, 9 



cuspidatum, normal and etiolated 

 stems, 248 

 Polystichum acrostichoides, 151-154, 220, 



254, 278, 295, 297 

 Populus Simonii, 154-156, 239, 240, 241, 



242, 246, 247, 249, 251, 268, 286, 295 

 Potentilla, 157, 261 



reptans, 32 

 Potts, G. (Zur Physiologie des Dictyos- 



telium mucoroides. Flora. 91 : 2S1-347. 



1902), 279 

 Prantl, R. (Ueber den Einfluss des 



Lichtes auf das Wachstum der Blatter. 



Arb. a. d. Bot. Inst. Wiirzburg. \ : 371. 



1873). .I3> 2S2 

 Proserpinaca palustris, 217 

 Prunella grandijiora, 17 

 Pteris chrysocarpa, 9 



longifolia, 157, 15S, 220, 254, 278 

 Pulmonaria officinalis, 17 



Polygonum Fagopyrum, 227 

 Polypodium repens, 34 



^uamasia (see Camassia), 214, 255, 306 

 ^uercus, 115, 161-169, 189, 250, 251, 252 

 palustris, 15S, 159, 230, 231, 239 

 rubra, 159-161, 230, 231, 239 



Radish, 211 



Rane, F. Wm. (Electro-horticulture with 

 the incandescent lamp. Bull. No. 

 37. W. Virginia Exp. Station. 1894), 

 211,293 

 on the effects of artificial illumination 

 on plants. 275 

 Ranunculus Asiaticus, 205 



divaricatus, 27, 217 

 Raphanus, 19 

 Rate and mode of growth as affected by 



light and darkness, 304-309 

 Rauwenhoff, on etiolated stems, 248, 283 

 (Sur les causes des formes anormaies 

 des plantes. Ann. Sc. Nat. VI. 5: 

 267. 1878), 18 

 Ray, J. (Historia plantarum. i : 15. 16S6; 



also in imprint of 1693), 1 

 Re, F. (Saggio di nosologia vegetabile. 

 p. 23 1807), 4 

 (Saggio teorico-pratico sulle malattie 

 delle piante, p. 147, 1807), 4 

 Rennert, R. J. (Seeds and seedlings of 

 Arisaema triphyllum and Arisaema Dra- 

 contium. Bull. Torr. Club. 29: 37-54. 

 1902), 50, 221 

 Rheum, 167-169, 259, 260 

 Rhizomes, etiolation of, 216, 217 

 Rhododendron, 26 

 7naximum, 210 

 Rhus, 169, 239, 240, 241 

 Richards, H. M., observations of, 33 

 Ricinus communis, 169, 170, 230, 231, 299 

 Ricome, M. II. (Action de la lumiere sur 

 les plantes preablementetioles. Rev, 

 Gen. d. Bot. 14 : 26, 72, 120. 1902), 

 33, 297, 298, 299 

 (Sur le developpement des plantes 

 etiolees ayant reverdi a la lumiere. 

 Compt. Rend. 131 : 1251. 1900), 33 

 Robinia pseudacacia, 29 

 Roots, etiolation of, 233-235 

 Rowlee, W. W. (Eftect of the electric light 

 upon the tissue of leaves. Proc. 19th 

 Annual Meet, of the Soc. for Promo- 

 tion of Agric. Science. Boston, Mass. 

 pp. 50-58. 2 pis. 1898), 210 

 Rumex, 168, 170, 171, 219, 260 

 Rzentkowsky, T. (Untersuchung iiber die 

 Entwickelung des etiolirten Phaseolus 

 multijiorus. Mitth. a. d. Univ. z. War- 

 shau ; abstract in Bot. Jahresber. 4 : 745. 

 1876), 16, 304 



Sachs, investigations of, 39, 2S1, 282, 305 

 on etiolation, 275 



