134 



THE COTTON PLANT IN EGYPT chap. 



The ma Iter might he of importance with regaid to 

 photosynthesis. 



Colour of petal. — The limb oi the petal, apart from 

 the colour of the basal spot, which we shall discuss shortly. 



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Fit:. 54. — Typical Plant of "77." .Ti ly 10, liKItt, 



ranges in colour from almost pure white to a rich golden 

 vellow. Eai'h pure strain of cotton has a definite petal 

 colour, which is white to creamy in Uplands and Hindi, 

 while ill Egyptian families it ranges from lemon to golden. 



