396 



INDEX. 



Pistillum, use of the term discussed, 

 297. 



Planchon's Monograph of Ampelidece, 

 250. 



Plant Archaeology, 269. 



Plants, ancestry of, 269. 



Plants, aneniophilous, 234. 



Plants, Climbing, Danvin's Movements 

 and Habits of, 158. 



Plants, Cultivated, A. De Candolle's 

 Origin of, 311 ; improvement of, 

 109. 



Plants, connubial relations of, 241. 



Plants, Darwin's Power of Movement 

 in, 304, 



Plants in Glazed Cases, Ward's Growth 

 of, 59. 



Plants, history of their distribution, 70. 



Plants, Naudin on the Nature of Hered- 

 ity and Variability in, 212. 



Plants, physiology of, 81. 



Plants, relation of, to STirronnding con- 

 ditions, 68. 



Plants, Self-fertilization of, by George 

 Henslow, 263. 



Plants, self-sterile, 224. 



Poinsettia, adaptation to insect-fertil- 

 ization, 234. 



Pollen, direct action of, on ovary and 

 ovules, 87 ; value of, discussed by 

 Darwin, 228. 



Popular names of British plants dis- 

 cussed, 106. 



Portulaca oleracea, introduction into 

 North America, .326. 



Potato, origin of, discussed, 69 note, 

 317. 



Primula Sinensis, glandular hairs of 

 the leaves of, 209. 



PrimulacecE in the Prodromus, 18. 



Proflromus, De Candolle's, 15. 



Proserpina, Ruskin's, 199. 



Pruinosus defined, 297. 



Publication of botanical works dis- 

 cussed, 285. 



Publicity of publication discussed, 

 369. 



Purslain, introduction into North 

 America, .326. 



Pyrularia, 28. 



Pyrtis, characters of, 193. 



Pyrus, Decaisne's monograph of the 



genus, 186. 

 Pyrus, division of the genus, 194. 

 Pyrus, limitation of the genus, 189. 

 Pyrus, morphology of the g^ynseciom 



of, 190. 

 Pyrus, orthog^phy of, 329. 



Quaternary climate described, 275. 

 Quercus Ilex, 139. 

 Quercus Eobur, 138, 139. 

 Quincuncial imbrication, 120. 



Races, fixity of new, in cultivation, 110. 

 Radicle, character of the, 121. 

 Radicle of the embryo, true character 



of, 74. 

 Radlkofer's Process of Fecundation in 



the Vegetable Kingdom, 91. 

 Ranunculus alisincEfolius, 184. 

 Ranunculus fascicularis, 184. 

 Ranunculus orthorhynchus, 184. 

 Red Clover, fertilization of, 226. 

 RestiacecE, monograph of, 248. 

 RhamnaceoR, stamens of, 76. 

 Rhipogonum, 249. 

 Riddles, botanical, 291. 

 Root, mode of penetration into the 



soU, 306. 

 Root-hairs, 75. 



Root-tip, functions of, discussed, 307. 

 Rosa setigera, mode of growth of, 171. 

 Ruskin's Proserpina, 199. 



Salsolacea in the Prodromus, 26. 



Santalace(t in the Prodromus, 28. 



Saporta's Monde des Plantes avant 

 I'Apparition de I'Homme, 269. 



Sarracenia, history of discoveries re- 

 lating to, 210. 



Saxifrages, glandular hairs of the 

 leaves of, 209. 



Schanolirion album, 280. 



Seeds, reproduction by, 58. 



Self-fecundation discussed, 267. 



Self-fertilization in the vegetable king- 

 dom, 217, 263. 



Self-sterile plants, 224. 



Sequoia, history of, 277. 



