6 5 8 
INDEX 
Poor man’s weather-glass, Ana - 
gallis 
Poplar, Populus 
Poppy, Papaver ; Welsh-, Meco- 
nopsis ; yellow horned-, Glau- 
cium 
Porcupine wood, Cocos 
Pores, dehiscence by, 108 ; in 
anther, 78 
Porogamic fertilisation, 81 ; Chala - 
zogamae 
Portfolio for pressing, 1 1 
Portland arrowroot, Arum 
Position of organs, 28 
Posterior, 73 
Posticous, on the posterior side 
Potato, Solanum ; sweet-, Ipomoea 
Potter, M. C., 154 
Pounce, Callitris 
Pound and Clement, 184 
p.p., pro parte, partly 
Praecox (Lat.), appearing early 
Praemorse, as if bitten off, 53 
Prairie, 188; -turnip, Psoralea 
Pratensis (Lat.), of meadows 
Pref., prefix 
Prefoliation, vernation 
Preserving, 11, 12, 13, 14 
Pressing plants, 11, 13 
Prickles, 53, 114 
Prickly ash, Zanthoxylum ; lettuce, 
Lactuca ; pear, Opuntia ; shield- 
fern, Aspidium 
Primine, outer coat of ovule 
Primrose, Primula ; evening-, Oe- 
nothera 
Principles of classification, 12 1 
Privet, Ligustrum 
Procerus (Lat.), lofty 
Process, a projecting appendage 
Procumbent, 144 
Proletarians, 59, 15 1 
Prolifi cation, 23 
Pronuba moth, Yucca 
Propulsive mechanism (seed-dis- 
persal), 1 1 1 
Prostrate stem, 44 
Protandry, 96, 98 
Protection (against grazing ani- 
mals), 153; (of buds), see Bud 
protection ; of honey, 88 ; of 
pollen, 73, 86 ; of young leaves, 
157 
Protective movements of flowers, 
104 ; of leaves, 49 
Proteids, 34 
Proterandry, protandry 
Proterogyny, protogyny 
Prothallus, 55, 79 ; Filicineae 
Leptosporangiatae , Pteridophyta , 
Selaginella 
Proto- (Gr. pref.), first, earliest 
Protocorm, Lycopodiaceae 
Protogyny, 86, 96 
Protoplasm, 33 
Proximal, nearest to axis 
Prune, Prunus 
Pseudaxis, a sympodium 
Pseudo- (Gr. pref.), false- 
Pseudobulbs, Orchidaceae 
Pseudocarp, 106 
Pt., point 
Pteridophyta, 124 
Ptero- (Gr. pref.), wing- 
Puberulous, minutely pubescent 
Pubescent, 53 
Puccinia, Malva 
Pudding-pipe tree, Cassia 
Pulas tree, Butea 
Pulchellus (Lat.), beautiful 
Pulque, Agave 
Pulvinate, cushion-shaped 
Pulvinus, 49, Mimosa 
Pumelo, Citrus 
Pumilus (Lat.), low, small 
Pumpkin, Cucurbita 
Punctate, dotted 
Puniceus (Lat.), bright carmine 
Pupunha, Badris 
Purging cassia, Cassia ; flax, 
Linum 
Purple loose-strife, Ly thrum 
Purpureus (Lat.), purple 
Purslane, sea-, Arenaria 
Pusillus (Lat.), small, weak, 
slender 
Putamen, stone of a drupe 
Pyrene, single stone of a drupe 
Pyriform, pear-shaped 
Pyxis, 108 
Quadri- (Lat. pref.), four- 
