ii6 SCIENCE PRIMERS. [INDEX. 



Orchis: roots, 46; flower, 85; stamens, 104; pollen, 108; fer- 

 tilization, 103; fruit, 128 

 Poeony: seed, 136 

 Palm: seed, 131 

 Parnassus : grass of, 98 

 Parsley: leaves, 68 <?; inflorescence, 68 

 Parsnip: inflorescence, 78; fruit, 128 



Pea : leaves, 68 ; stipules, 68 ; flower, 83, 85 ; corolla, 95 ; 

 stamens, 104; fruit, 121, 117, 128; bloom on, 138; seed, 

 33; germination, 3539 



Pear: vernation of, 69; fruit, 125, 128; grits, 6, 14 

 Pennywort : leaf, 68 

 Periwinkle: aestivation, 101 



Pimpernel : inflorescence, 76; aestivation, 101 ; corolla, 96 

 Pine: *wood, 13, 140; leaves, 68;* * pollen, 141 ; cone, 125, 128; 



fertilization, 120; seed, 136 

 Pink: inflorescence, 77; flower, 85 

 Plantain: inflorescence, 78; fertilization, 120 

 Plum: fruit, 128 

 Pomegranate: seed, 131 

 Poplar : inflorescence, 78 

 Poppy: fruit, 128 



Potato: stem, 49; tubers, 64; fruit, 128 

 Primrose : flower, 85 ; calyx, 9 ; corolla, 93, 96 ; fertilization, 



122; fruit, 128 

 Privet: leaves, 68 

 Quince: fruit, 128 

 Radish : root, 45 

 Raspberry: fruit, 128 



Rose: prickles, 138; leaf, 68; stipules, 68; flower, 85; double 

 flower, 86; calyx, 93; stamens, 107; fruit, 125, 128 



Rosemary: vernation, 68 



Sacred bean of India : germination of, 137 



Sarracenia : pitchers of, 30 



Scabious: inflorescence, 78 



Shepherds-purse : roots, 45 



Snapdragon : inflorescence, 78 ; flower, 83 ; corolla, 95 



Spiderwort: * hairs of stamens, 137 



Spindle-tree : seeds, 136 



Spines, 68 



St. John's wort: stamens, 104 



Star of Bethlehem : inflorescence, 78 



* Starch, 6, 17 



Stitchwort : inflorescence, 77 



*Stomates, 27, 72, 75 



