Otago Central, 204. 
Ottelia ovalifolia, 191. 
Ovary, 23, 156. 
Ovate, 137. 
Ovules, 156. 
Oxalis leaflets, 138. 
closing of, 135, 187. 
Oxidation, 27-8. 
Oxygen, 27-8. 
for germination, 41. 
in photosynthesis, 124. 
Palisade tissue, 118. 
Palmate, 140, 142. 
Palmatifid, 142. 
Palmatisect, 142. 
Panax leaf, 142. 
in mixed forest, 209. 
umbel, 176. 
Panicle, 176. 
Pansy, 256. 
pollination of, 169. 
Papilionacex, 229. 
Parallel veins, 138. 
Parietal, 158. 
Parsonsia 
in rain forest, 206. 
seed dispersal, 185-6. 
Parasites, 82, 99, 144, 210. 
Parents, advantage of two, 162. 
Parsley, 243. 
Parsnip, 176, 248. 
Passion flower 
tendril, 99. 
leaf, 141, 142. 
Pastinaca, 243. 
Pate, 142. 
Pea, garden, 229-31. 
pollination, 166. 
sweet, tendrils of, 99. 
Peach, leaf, 1388. 
Pear, 237. 
Peat, 79. 
Pedicel, 174. 
Peduncle, 174. 
Peltate, 138, 139. 
Pennyroyal, 96, 178, 198. 
Peony, 225. 
Pepper, 137, 164, 176. 
Perennial, 94, 
Perianth, 152. 
Pericarp, 179, 182. 
Pericycle, 93. 
Perigynous, 161. 
Periwinkle, 257. 
leaves, 114. 
Petals, 21, 152. 
closing of, 154. 
function, 152. 
protect yollen, 154. 
Petiolate, 143. 
Petiole, 18. 
climbers, Oe 
Phanerogams, 218. 
Phenomena of germination, 438-5. 
Phormium, 251. 
cookianum, 199. 
leaf, 138. 
INDEX 
265: 
Phormium, continued— 
rhizome, 101. 
struggle for existence, 197. 
Phosphates, 75, 79. ( % 
Phosphorus, 74, TO. 7S. 
in proteins, awe 
Photosynthesis, 118-25, 
comparison with respiration, 
127. 
Phyllode, 184, 135, 
Phyllotaxis, 1138. 
Pimento, 240, 
Pimento acris, 240. 
Pineapple fruit, 184. 
Pingao, 200. 
Pinnate, 140. 
types, 140, 141, 142. 
Pinnately compound, 142. 
Pinnatifid, 142. 
Pinnatisect, 142, 
Pinus insignis 
habit, 94, 
leaf, 188; root, 53. 
Piper excelsum, 176. 
Piripiri (bidibidi) 
description, 236; head, 176. 
pollination, 165, 
seed dispersal, 186-7. 
Pistil, 23; 
and carpel epee n orate 156. 
Pisum sativum, 229-3 
Pitcher plant, 144. 
Pith of root, 69; of stem, 92. 
Pittosporum tenuifolium 
leaf margin, 140. 
pollination, 154. 
seed dispersal, 187. 
Placentation, 157-9. 
Plantain, 257. 
pollination, 165; pia 176. 
Plant description, 217-58 
societies, 194-216. 
Plum, 237. 
Plumule, 24, 33. 
Poa, 2038, 254. 
Pohutukawa 
habit, 94. 
order, 240. 
Pollen, 21. 
Sag, 155: 
Pollination, 160-738. 
and fertilization, 160. 
by animals, 172. 
insects, 165. 
water, 173. 
wind, 165. 
cross, 161. 
definition, 161. 
in arum, 165. 
brier, 2384, 
buttercup, 222. 
carrot, 242. 
cliantus, 172. 
daisy, 246. 
fuchsia, 168. 
grass, 254. 
hyacinth, 250. 
iris, 168. 
