INDEX 



267 



Oi^posite bud-scales 42, 4G, 49, 54 

 Opposite leaves 11 

 Origin of periderm 94, 9(5 

 Osier 249, 254, 255 

 Outgrowths of epidermis 81 



Palm 29, 84, 93 



Pansy 92 



Papaya 29 



Pappus 93 



Parasitic plants 124, 129, 142 



Pear 33, 52, 53, 55, 59, 61, 80, 

 96, 109, 110, 111, 114, 116, 117, 

 119, 121, 122, 128, 239, 240 



Peeling of epidermis 94 



Peltate scales 90, 91 



Perfoliate Honeysuckle 168 



Periderm 94, 96, 98, 107 



Periodic growth 64, 75 



Persistent epidermis 81, 94 



Perulas 19, 133 



Petiole 11, 101, 105 



Petty Whin 190 



Fhlladelphus 25, 35, 96, 122, 197 



P. Coronarius 96 



Philodendron 29 



PJtlomis 90 



Picea 30 



P. excelsa 20, 31, 139 



Pilose hairs 126 



Pine 7, 9, 17, 18, 19, 20, 21. 25, 

 28, 31, 34, 36, 51, 53, 54, 55, 

 57, 59, 63, 68, 77, 80, 96, 99, 

 116, 121, 123, 133 



Pinguicula 92 



Finns Aiistriaca 136 



P. Cembra 126, 134 



P. excelsa 134 



P. Laricio 136 



P. montana 136 



/-. monticola 134 



P. Pinaster 136 



P. Pinea 136 



P. Strobus 134 



P. sylvestris 109, 135, 136 



P. Taeda 134 



PiperaceaB 91 



Pith 212 



Plan-diagram of bud 9, 41, 46 



Plane 35, 52, 53, 56, 57, 59, 61, 

 95, 109, 112, 117, 118, 121, 122, 

 123, 127, 189, 213, 214 



Plane leaf 58, 63 



Platanus 25, 35, 189, 197 



P. occideutalis 213, 214 



P. orientalis 214 



Plicate leaf 44, 58, 63, 70 



Plum 33, 52, 54, 61, 80, 83, 110, 



116, 117, 119, 121, 123 

 Plumule 3, 6, 7, 9, 12 

 Polished surface 127 

 Polygonum 37 

 Poplar 23, 24, 26, 33, 45, 53, 55, 



59, 61, 68, 80, 93, 95, 96, 119, 



121, 122, 142 



Populus alba 108, 227, 228 



P. canadensis 27, 109, 223 



P. niyra 27, 45, 109, 221-223 



P. pyvaviidalis 221 



P. tremula 219, 220, 221, 227 



Portugal Laurel 52, 150 



Position of buds 25, 30, 36 



Position of leaf-scars 116 



PotentiUa 88, 90 



Prickles 5, 81, 92, 124, 127, 189, 



199 

 Primary bud 3, 9, 13 

 Primary root 5, 6 

 Primary stem 6 

 Primulacete 91 

 Privet 51, 53, 54, 63, 97, 98, 109, 



110, 115, 116, 117, 118, 119, 



122, 144, 173, 174 

 Protective functions of bud-scales 



23, 27 

 Pruinose twigs 112 

 Pramis 28, 34, 37, 55, 60, 68, 



95, 96, 118, 126, 241-247 

 P. Amygdalus 60 

 P. Avium 25, 27, 50, 59, 60, 69, 



108, 110, 111, 219, 244, 246, 



247 

 P. Gerasus 60, 244, 245, 247 

 P. domcstica 192, 242, 243, 247 

 P. insititia 126, 192, 231, 243, 



245 

 P. Laiiro-cerasus 149 

 P. Lusitauica 149, 150 

 P. Padus 34, 60, 126, 241, 242 

 P. spinosa 60, 162, 192, 193, 243, 



245 

 Pseudo-distichous 137 

 Pseudo-terminal bud 113, 114 

 Pseudo-whorls 30, 31, 34, 133 



