350 



INDEX 



Monocotyledons (with 

 one seed-leaf), 171, 

 286. 



Mosses, 250, 306, 309. 



Moths, 15, 16. 



Moulds, Ch. X. 



Mucilage (gununy 



varieties of cellu- 

 lose), 88, 239. 



Mucor, 210. 



Mudplants, 193. 



Murray, 182. 



Mushrooms, 222, 225, 



Mycelium (the absorb- 

 ing part of fungi), 

 217, 225. 



Mycorhiza (fungus ser- 

 vant), 126, 237, 309. 



Myosotis, Forget-me- 

 not, 15, 53. 



Myrmecophilous 

 (plants which keep 

 ant guards), no. 



Myxomycetes, 234, 

 310. 



M'Call, 157. 



Mac Kay, 317. 



Narthecium, 42, 46. 



Nectria, 229, 310. 



Nettle, 26, 135, 144, 



150, 312, 336, 337- 



Nitrogen, 128, 201, 202, 

 203, 204. 



Niven, 267. 



Nucleo-proteid (pro- 

 teids with phos- 

 phorus), 213. 



Nucleus, 74. 



Oak, 25, 54, 103, 120, 

 155, 267, 286. 



Oats, 22, 27, 54, 55, 84, 

 86, 297, 298, 318, 

 322, 323, 324, 327, 

 332. 



Oils, 36, 38, 77, 164. 



Ohve, 35, 39, 279. 



Operculum (the cap- 

 sule-lid of mosses), 



257- 

 Orange, 33, 35, 36, 37, 



41, 72, 80, 142. 

 Orchids, 27, 49, 68, 



75, 268. 

 Ormerod, 112. 

 Oscillatoria, 189, 339. 

 Osmosis (diffusion into 



or out of cells), 119, 



123. 



Ott, 78. 



Overton, 149. 



Ovate (egg-shaped), 

 132. 



Ovules (female spor- 

 angia, which become 

 the seed), 10. 



Palms, 76, 108, 165, 



171. 



Panicle, 23. 



Pansy, 12, 21. 



Papyrus, 114, 173, 



Paraphyses (barren 

 cells amongst the 

 asci), 242. 



Parasites (attacking 

 live plants or ani- 

 mals), 220, 237. 



Parmelia, 240, 247, 

 248, 250, 306. 



Pasteur, 209, 213. 



Paterson, 151. 



Peat, 118, 263, 264, 

 265, 266, 288, 315. 



Pedicel (flower stalk), 



50. 69- 



Peduncle (stalk of in- 

 florescence), 50, 69. 



Peltigera, 239, 240, 

 241, 248, 306. 



Penicillium, 96, 210, 

 211, 212, 218. 



Percival, 232. 



Pericycle (outermost 

 cells of central cylin- 

 der), 98, 122, 123, 

 159, 160, 163. 



Peridineae, 176, 177, 



Peristome (the teeth 

 forming the inside 

 covering of the moss 

 capsule), 257, 258. 



Peronospora, 211, 232. 



Pertusaria, 249, 306. 



Petals, inner flower 

 leaves, 10, 53. 



Phloem (food ma- 

 terials are carried by 

 phloem tissue), 122, 

 159, 160, 162. [224. 



Phosphorescence, 177, 



Photosynthesis, 131. 



Phragmites, 42, 186, 

 188, 323. 



Phycomycetes, 232. 



Phvscia, 247, 248, 306. 



Phytophora, 88, 218, 

 233- 



Pine, 24, 47, 53, 78, 

 80, loi, 161, 168, 

 193, 267, 286, 324. 



Pith, 159. 



Plankton (floating life 

 of sea, lakes, rivers, 

 etc.), 175, ^77' 180. 



Plantain, 65, 139, 194, 



19s. 330. 336, 337- 

 Plasmodiophora, Plas- 



mopara, 95, 236. 

 Plasmodium, 236, 310. 

 Pleurococcus, 182, 183, 



251,. 307- 

 Plowright, 232. 

 Plum, 41, 81, 323. 

 Plumule (shootbud of 



seed), 71. 

 Poa, 89, 190, 330. 

 Podetia (the little 



stalks of some 



lichens), 244. 

 Poisons, 82, 104, 202, 



222, 223. 

 Pollen (male spore), 



10, 24, 26, 31 ; resist- 

 ance, 28, 29. 

 Polygonum, 301, 335. 

 Polyporus, 227, 310. 

 Polytrichum, 173, 258, 



262, 263, 307. [80. 

 Pomegranate, 38, 41, 

 Poplar, 146, 286. [334. 

 Poppy, 17, 28, 31, 

 Potamogeton, 54, 185, 



190. 

 Potato, 29, 59, 62, 67, 



90, 119; disease, 233. 

 Potentilla, 63, 137, 



192, 193, 332. 



Prickles, 97, 106. 



Proteid (consists of 

 carbon, hydrogen, 

 oxygen, nitrogen, 

 sulphur), 75. 



Prothallium (product 

 of germination of 

 fernspores), 276. 



Protonema (the green 

 threads produced by 

 moss-spores), 256. 



Protoplasm (the living 

 matter of animals 

 and plants), 71, 74. 



Prunus, 81, 144, 517, 



323- . [231- 



Puocinia, 211, 230, 

 Puff ball, 219, 228. 



