656 
INDEX 
Peltate leaf, 52 
Pencil cedar, Juniperus 
Pendulous, drooping 
Pendulous inflorescence, 86; ovule, 
82; shoots, 157 
Penny - cress, Thlaspi ; -royal, 
Mentha ; -wort, Cotyledon , 
Hydrocotyle 
Penta- (Gr. pref.), five 
Pentacyclic, 70 
Pentamerous, 70 
Pentandrous, with five sta. 
Penzig, O., 148 
Pepo, 108 
Pepper, Piper ; Japan-, Zanthoxy- 
lum ; -mint, Mentha', red-, Cap- 
sicum ; -tree, Schinus ; wall-, 
Sedum ; water-, Elatine 
Pepperidge, Nyssa 
Perennial plants, 151, 60, 168; 
stem, 44 
Perfoliate leaf, 51 
Perfumes, 200, Acacia 
Peri- (Gr. pref.), around 
Perianth, 75, 67, 70, jii 
P ericarp, 106, no 
Periderm, bark 
Perigone, perianth 
Perigyny, 71, 72, 76, 77 
Periodicity in life-history of plants, 
1 44, 1 5 1, Agave , Fagus 
Perisperm, T05, 106 
Periwinkle, Vinca 
Pers., Persoon 
Persian lilac, Indian lilac; powder, 
Chrysa 7 ithemum 
Persimmon, Diospyros 
Persistent perianth, 77 
Personate corolla, 77 
Peru-bark, Cinchona 
Peruvian bark, Cinchona ; nut- 
megs, Laurelia 
Pet., petal, 67, 77 
Petaloid perianth, 77 ; stami- 
nodes, 79 
Petiolate leaf, 51 
Petiole, 46, 50 
Petraeus (Gr.), growing on rocks 
Petty whin, Genista 
Pfl. R., Pflanzenreich 
Phaenogams, Phanerogams 
Phaenology, 144 
Phanerogams, Spermaphyta 
Pheasant’s eye, Adonis 
Phellogen, 158 
Phil. Is., Philippine Islands 
Phloem, 33, 157, 158 
-phorus (Gr. suff.), stalk, bearer 
Photography, 12, 15 
Phyla, 30 
Phyllo- (Gr. pref.), leaf- 
Phylloclades, 166, Carmichaelia, 
Phyllocladus 
Phyllodes, 166, 167, 49, Acacia 
Phyllomes, leaf-structures 
Phyllotaxy, 45 (fig.), 51 
-phyllum (Gr. suff.), -leaf 
Phylogeny, 2, 20 
Physical barriers to migration, 145 
Physic-nut, Jatropha Curcas L. 
Physiological division of labour, 
20, 88 
Physiology, 2, 20, 32, 56 
Phyto- (Gr. pref.), plant- 
Piassaba fibre, Attalea,Leopoldinia 
Picotee, var. of carnation 
Pigeon-pea, Cajanus 
Pignons, Pinus 
Pig’s balsam, Hedwigia 
Pile-wort, Ranunculus 
Piliferous, hair-bearing 
Pill-wort, Pilularia 
Pillar-root, 40, 19 1 
Pilose, 53 
Pimpernel, Anagallis ; yellow-, 
Lysimachia 
Pinaster, Pinus 
Pine, Pinus ; -apple, Ananas', 
Bunya-Bunya-, Araucaria ; ce- 
lery-, Phyllocladus ; frankin- 
cense-, Pinus', golden-, Pseudo - 
larix\ loblolly -, Pinus; Norfolk 
Island-, Araucaria ; Oregon-, 
Douglas Fir ; parasol-, Sciado- 
pitys ; screw-, Pandanus 
Piney varnish, Vateria indica 
L. 
Pinguin, Bromelia Pinguin L. 
Pink, Dianthus ; Indian-, Spigelia ; 
-root, Spigelia ; sea-, Armeria 
Pinna, leaflet of a pinnate leaf 
Pinnate leaf, 51 ; venation, 51 
