696 
INDEX 
Porogamic fertilisation, 8i, Chala - 
zogamae 
Portfolio for pressing, 1 1 
Portland arrowroot, Anun 
Position of organs, 28 
Posterior, 73 
Posticous, on the posterior side 
Potamium (CL), a river formation 
Potato, Solanum ; sweet-, Ipomoea 
Potter, M. C. , 154 
Pounce, Callitris 
Pound and Clement, 184 
Poverty grass (Am.), Aristida 
dichotomci Michx. 
p.p., pro parte, partly 
Praecox (Lat.), appearing early 
Praemorse, as if bitten off, 53 
Prairie, 188 ; -clover (Am.), 
Petalostemon ; - grass (Am.), 
Sporobolus asper Kunth ; -tur- 
nip, Psoralea 
Pratal, growing in meadows 
Pratensis (Lat.), of meadows 
Pref., prefix 
Prefoliation, vernation 
Preserving, 11, 12, 13, 14 
Pressing plants, 11, 13 
Prickles, 53, 114 
Prickly ash, Zanthoxylum ; . -let- 
tuce, Lactuca ; -pear, Opuntia ; 
-pole (W. I.), Badris ; -poppy 
(Am.), Argemone\ -shield fern, 
Aspidium\ -withe (W. I.), 
Cereus triangularis Mill. 
Prim (Am.), privet 
Primine, outer coat of ovule 
Primrose, Primula ; evening-, 
Oenothera ; -willow (W. 1 .), 
Jussieua 
Prince wood bark (W. I.), Exo- 
stemma 
Principles of classification, 12 1 
Privet, Ligustrum 
Procerus (Lat.), lofty 
Process, a projecting appendage 
Procumbent, 144 
Proletarians, 59, 151 
Proliferous, bearing offshoots 
Prolification, 23 
Promotion nuts, cashew nuts 
Pronuba moth, Yucca 
Propulsive mechanism (seed dis- 
persal), hi 
Prostrate stem, 44 
Protandry, 96, 98 
Protection against grazing animals, 
153; -of buds, see Bud; -of 
honey, 88; -of pollen, 73, 86; 
-of young leaves, 157 
Protective movements of flowers, 
104 ; -of leaves, 49 
Proteids, 34 
Proterandry, protandry ; -gyny, 
protogyny 
Prothallus, 55, 79 ; Filin' neae 
Lepto . , Pteridophyta , Botry- 
chium , Selaginella 
Proto- (Gr. pref.), first, earliest ; 
. -corm, Lycopodiaceae\ -gyny, 86, 
96 ; -plasm, 33 
Proximal, nearest to axis 
Pruinose, with waxy powdery 
secretion on the surface 
Prune, Prunus 
Pruriens (Lat.), causing itching 
Psammophilous, sand-loving 
Pseud- (Gr. pref.), false ; -axis, a 
sympodium ; -obulbs, Orchida - 
ceae\ -ocarp, 106 
Psilium (Cl.), a prairie formation 
Pt., point 
Pteridophyta, 124 
Ptero- (Gr. pref.), wing- 
Puberulous, minutely pubescent 
Pubescent, 53 
Puccinia, Malva 
Puccoon (Am.), lithospermum , 
Sa?iguinaria ; yellow-, Hydras- 
tis 
Pudding pipe tree, Cassia 
Pulas, Butea 
Pulchellus (Lat.), beautiful 
Pulque, Agave 
Pulvinate, cushion-shaped 
Pulvinus, 49, Mimosa 
Pumelo, Citrus 
Pumilus (Lat.), low, small 
Pumpkin, Cucurbita 
Punctate, dotted 
Pungens (Lat.), sharp-pointed 
Punctum vegetationis, growing 
point 
