FERTILIZATION OF THE FLOWEKS, 



87 



We aay flowoiH nm jtroli/rrous wIumi oitlicr 

 the glumes, puleii, Htuinen.s or ovary, oraiUof 

 these develop into small leaves in place of 

 Jiowers. This is not uncommon in Indian 

 corn and .Tuneus. The bulblets of onions or 

 *' onion sets" are fumiliar extimplos. 



In this connection a rei'orcnco to figure 53 

 will show several forms of ovaries and style)*, 

 und imjtress the reader with the importance fl,li4l'KiuiiH'"oi'^/vi;n<m 



, .. ,, ., nil", iinttnixc (TiiiKitliy). witli 



of examining these minute and delicate a poithm it'i)resi'iitin« 



tlu) hIumiMi aiKi a iiortloii 



organs for L'encric and si)ecitlc characters. ronrfsii.tinnth.hiad.-of 



O to I a leaf, slltflitly eiilargud. 



— (Su(lworth). 



FJk. fi3.--7, Pistil of Mfbnm minima; ii. Pistil of Arrhenatherum arenaceum; 3, Pistil 

 Vl ^Jlll<'e'^nquattca; 4, Pistil of Mdica unillnra; «. Pistil of Bromm moUin; 8, 

 Pistil of ^?onecHnw tyratensis, meadow fox tail: T. Pistil of Kardm stricta. All 

 magnified.— (From Aaroatographia 8ynopttca by Kunth). 



Fertilization of the Flowers.— When the flowers arrive at 

 a certain stage of growth, the stigmas are ready to receive the 

 pollen, which sends a miniature thread down the style to the 

 ovule. The pollen of grasses is in the form of round, smooth 

 Ceils, and escapes readily. The flowers of grasses, except where 



