INDEX AND GLOSSAKx 



35] 



Perianth: floral envelopes of lily-like 



plants (more properly of monocoty- 



ledonous plants I, 1 275 1. 

 Periblem, -j:.::. 

 l'erii-ari>: ripi-m-d ovar; 

 Peiichaetia, 190. 



Perigynoas: borne around the ovary. 

 Peristome, 191. [(283). 



Perithecium, 1 - 



Persistent: remaining attached, (204). 

 Personate, 137. 

 Petal: one of the separate leaves of a 



corolla, (251 1. 

 Petiolole: -talk of a leaflet, 1 196 . 

 Petiole: leaf-stalk, ' W I. 

 Petunia, 330, Pigs. 189, (90. 

 Phaseolns, 319, Pigs. 171, 172. 

 Phellogen, 266. 

 Phenogam: seed-bearing or flowering 



plant, (325 , 286. 

 Philadelphns, :;::'.. 

 Phloem, 257. 

 Phlox, 137, 225, Fit,'. 218. 

 Phosphorus, 72. 

 Photosynthesis: the making of organic 



matter from CO a and water, In the 



presence of Light, 

 Phyllodinm: leaf -like petiole, (214). 

 Phyllotaxy: arrangement of Leaves and 



flowers on the stem, (111). 

 Physostegia Inflorescence, Pig, 17.",. 

 Picea, 288, Pigs. 270, 271, 124. 

 Tic- plant, 305, Pigs. 78, 79, 

 Pigweed, 3, 62, Pigs. 372 

 Pine, 15, 287, Pigs 10, 21, 1 15, 272 I 



cone, Pig. 272; foliage, Pig. 145; stem 



Fig. 107; I'll tale, Pig. 364; trei I 

 pollination, 132. 

 rink. 807; dehiscence, 152, Kit; 2 

 Pinnate, 91. 

 Pinnatdfld, 92. 



Pinus, 287, Pig. 121 r^, 



Pi til; ovnle-bearing or seed bearing 

 Pistillate: having pistils and no 

 Pianm sativum 

 Pitchforks, 162 

 Pits 



Plankton 



Plantain Infloi 1 16 



Plant-breeding 231 



Plant I I defined 



Plasmodl 



Plerome, 253. 



Plnm, 20, 321, Pigs l'.'i 262 ITS 



phyllotaxy, 19; pollination 



blossom, Fig. 194; dru] 



thorns, 1". 

 Plnmnle: bud in the embryo 

 Plur-annual: of one season's duration 



because killed by frost 1 1 . 

 Pod : dehiscent pericarp 

 Poinsettia bracts, 1 7, starch, 241 

 Polarity, 50. 

 Polianthes tuberose 

 Pollards, 74, Fig -7. 

 Pollen germinating, I 

 Pollen: spores borne bj I 

 Pollination: transfer of pollen fn 



men to pistil, 1 26 

 Pollinium : pollen in a 

 Polygonatum, 294. 

 Polygonum 

 Polyhedral 

 Polypetalous : corolla ot part-, 



or petals 

 Polypode, 17 1 

 Polypi 121. 



l'ol\ sepalous calj i oi n parat 



sepals, -'."'1 1. 



I'olj i richnm c dj 



Pome: fruit of 

 Poplar bud, 36 ; cn( I 



1 ;.: . Inflor 



shapi 

 Poppy, opium 

 Portulaca frnit 

 larigold, 







am! 



Pries 



P * 



i 



