EXPERIMENTS AND PRACTICAL WORK 51 



(b) Collect four flowers with brightly coloured sepals, 

 e.g. orchids, poinciana. 



(c) Collect four flowers with brightly coloured "honey 

 guides " (i.e. distinct bright lines down the petals), e.g. 

 morning glory, celandra. 



(d) Collect four flowers that have a strong scent, e.g. 

 stephanotis, Cape jessamine, frangipanni, trumpet flower. 



Expt. 71. The Characteristics of Wind -pollinated 

 Flowers. 



(a) Inconspicuous Colouring. Examine four wind-polli- 

 nated flowers and observe their inconspicuous colouring, 

 e.g. sugar cane, corn. 



(b) Exposed Stigmas. Examine the tassel of a young 

 ear of corn and observe that the thread-like styles are 

 sticky, and that they extend beyond the sheath, thus 

 permitting of their being pollinated by wind -borne 

 pollen. 



(c) Extended Anthers. Collect some wind-pollinated 

 flower (e.g. grass) and observe that its anthers hang 

 out from the flower, so that the wind may easily blow 

 the pollen to another plant. 



SEEDS AND SEEDLINGS I and II 



(See Tropical Readers, Book II, pp. G2-67.) 



Expt. 72. Seed Coats. Soak seeds of corn, broad- 

 bean, and castor-oil plants, together with three other 

 kinds of seeds in water. After they have become 

 swollen, remove the coverings and examine the parts. 



Expt. 73. Parts of Corn and Bean Seeds. After 

 soaking corn and bean seeds in water, examine and 

 make drawings of their parts, showing the nature of 

 the seed coats, the number of the cotyledons, the posi- 

 tion of the embryo, and the food reserve. 



