INDEX. 



211 



Pollination, 30. 

 Polypetalous, 162. 

 Polysepalous, 162. 

 Poppy,. com {Palaver Bhoeas), 



150; fruit of, 164, fig. 48. 

 Prickles, 114; of roses and 



brambles, no. 

 Primary cortex, 45 ; wood, 51. 

 Primordial, or naked cell, 34. 

 Primrose flower, structure • of, 



137 ; fruit of, 163, fig. 47. 

 Promycelium spores, 83. 

 Protection against climate, 98; 



against living enemies, 113. 

 Protective arrangements, 90. 

 Proterandrous, 135. 

 Proterogynous, 135. 

 Prothallus, 122. 

 Protoplasm, 32. 

 Protozoa, 6. 

 Puccinia gramims, life-history 



of, 82, 8s, fig. 24. 

 Purification of atmosphere by 



plants, 70. 



Bafflesia, 81, 82. 



Baphides, 36. 



Eelationship amongst plants, 



158. 

 Reproduction in plants, 116. 

 Eeproductive phase of plant- life, 



5- _. 

 Eespiration, 28, 70. 

 Eoot-hairs, 58. 

 Koot, uses of, 26. 

 Boots of seaweeds, 15. 

 Eose no. 



Eotation of crops, 59 ; of proto- 

 plasm, 35. 

 Bush" (Jimcw), 33. 

 Eussia matting, 51. 

 Bust of wheat, life history of, 82. 



Sage (Salvia scala/)-ea), 143, fig. 

 42 ; mode of fertilization, 



143- 



Sap-cavity, 32. 



Saprophytes, 86. 



Scalariform cells, 34. 



Seaweed {Fucus vesiculosus), 95, 

 fig. 2. 



SeafortMa elegans, 46, fig. 14. 



Secondary wood, 57. 



Section of stem of Boshmeria 

 a/rgentea, 52, fig. 18. 



Seeds, 31. 



Self-fertilization, 23. 



Sepals, 30. 



Sessile, 152. 



Sieve-plates, 51. 



Sieve-tubes, 51. 



Sigillaria, 190. 



Solar light, composition of, 65 ; 

 spectrum, 65. 



Special creation, 7. 



Species, 10; of plants, 185. 



Spiderwbrt (Tradeseantia Bel- 

 lei), section of stem, 50, fig. 



17- 

 Spiral vessels, 51. 

 Sporangia, 122. 

 Spore, 122. 

 Sports, 17. 

 Stamens, 30. 



