38 COMPANION TO TROPICAL READERS 



with coloured crayons of the sections; state which are 

 similar in structure to one another. 



LEAVES I and II 



(See Tropical Readers, Book I, pp. 86-93.) 



Expt. 33. Simple and Compound Leaves. Collect 

 and make drawings of 



(a) Ten simple undivided leaves, e.g. orange, mango, 

 sweet-sop. 



(b) Six simple leaves that are divided or lobed, e.g. 

 bread-fruit, castor oil. 



(c) Twelve compound pinnate leaves, e.g. logwood, 

 tamarind, Barbados pride, poinciana. 



(d) Six compound digitate leaves, e.g. silk-cotton (Ceiba), 

 choya (Cleome). 



Expt. 34. Leaf Stalks. Examine the stalks of leaves, 

 and collect four belonging to each of the under-mentioned 

 classes : 



(a) Petiolate leaves, e.g. mango, custard apple. 



(b) Sessile (without stalks), e.g. wandering Jew, to- 

 bacco, French cotton, monkey fiddle. 



(c) Stipulate, e.g. rose, gungo, rattle-bush. 



(d) Sheathing, e.g. sugar cane, Indian shot, guinea 

 grass. 



Expt. 35. Shapes of Leaves (fig. 17). Collect simple 

 leaves or leaflets that are the following shapes : 



(a) Linear, e.g. guinea grass, crocus. 



(b) Oval, e.g. guava, pimento. 



(c) Egg-shaped {ovate), e.g. dumb cane, four o'clock, 

 arrowroot, clammy cherry (scarlet). 



(d) Egg-shaped upside down (obovate), e.g. cashew, lignum- 

 vitre (leaflet). 



(e) Elliptical, e.g. grape fruit, star apple, aralia (leaflet). 



