266 
continued— 
172. 
Pollination, 
knightia, 
manuka, 
orchids, 
primrose, 
rewarewa, 172. 
salvia, 169. 
vallisneria, 
wallfiower, 
yucea, 170. 
self, 161, 163. 
Polypody, 213. 
Pome, 182. 
Pomegranate, 240. 
Pond-weed, 125, 
Poplar habit, 94. 
leaf, 
sucker, 101. 
Poppy, 256 
Poroporo (bullibulli), 
Potamogeton, Toy. so, 
Potash in pape noes 
Potassium, 75, 76, 79 
Potato flowers, 257. 
tuber, 103. 
Potometer, 130. 
Prairie grass, 252. 
Pressure of germinating seeds, 
Primary root, 53. 
Primrose, 257. 
placentation, 157-9. 
pollination, 166, 
sepals, 150. 
Prince of Wales Feather, 
Pronuba, 170. 
175. 
227. 
195. 
182. 
121. 
210. 
Prostrate stems, 96. 
Protandrous, 165. 
Protection 
against animals, 134, 136. 
cold and heat, 136, 229. 
water and wind, 137. 
by petals, 154. 
sepals, 152. 
of fruit, 187. 
of leaves, 136-7. 
Proteins, 31, 74, 108. 
formation of, 120. 
Protoplasm, 82. 
formation of, 120. 
Protogynous, 165. 
Prunus, 237. 
Psidium guyava, 240. 
Pterostylis, 169. 
Pukatea, 208. 
Pumpkin, 257. 
Punica granatum, 
Pungent, 143. 
Puriri, 94. 
Quartz, 78. 
Queensland, 197. 
240. 
Raceme, 176. 
Radicle, 24, 33. 
Radish, 182, 229, 
43. 
BOTANY 
136. 
Ragwort, 
206-9. 
Rain forest, 
Rangiora 
in successions, 
order, 247. 
Rangitoto, 213. 
Ranunculacesw, 220-5. ' 
Ranunculus hirsutus, 220. 
lyalli, 138, 224. 
Raoulia, 136, 247, 248. 
Raspberry, 237. 
Rata 
climbing, 97, 
in mixed forest, 
order, 240, 
stamens, 21. 
Raupo, 197, 218. 
Receptacle, 150. 
Red sink, 69. 
Reduced stomata, 133. 
leaf surface, 133. 
Relations of inflorescences, 
Reniform, 138. 
Reproductive organs, 
218. 
213. 
100, 101, 102. 
208. 
177. 
149, 
22-5, 
materials, 107-9. 
109. 
109. 
108. 
108. 
Reserve 
in fruits, 
leaves, 
roots, 
seeds, 
stems, 108. 
Respiration, 125-7. 
of aérial parts, 126. 
comparison with photosyn- 
thesis, 127. 
of germinating seeds, 
opening flower, 126. 
root, 80-1, 126. 
Reticulate veined, 138. 
Rewarewa leaf, 1438. 
44-5. 
208. 
251. 
follicle, 181. 
pollination, 172. 
in mixed forest, 
Rhipogonum scandens, 
Rhizome, 101. 
Rimu leaf reduction, 133. 
cushion form in alpine meadow, 
212. 
in mixed forest, 208, 209. 
mountain, 210. 
Rosa rubiginosa, 234-6. 
Rosacesw, 234-7. 
Rosette, 114, 136, 212, 247. 
Root, 18-15, 52-89. 
acid, 80. 
adventitious, 53. 
and stem, 107. 
cap, 15, 54, 61. 
experiments, 52-8. 
hairs, 14, 62-6. 
maize, 14. 
pressure, 66. 
tvpes, 70-4. 
Ruapehu, 204, 209. 
Rubus, 2387. 
australis, 236. 
Runner, 101, 
Rushes, 213, 255. 
