THE BORAGE FAMILY. 213 



III. Compare a number of inflorescences with reference 

 to the occurrence of bracts. Read Gray, Structural Botany, 

 pp. 153-155. 



IV. If they can be obtained at the same time, compare 

 the inflorescence of other representatives of the Borragi- 

 naceae, such as puccoon and forget-me-not, with that of 

 fyound's-tongue. Do they agree essentially in the arrange- 

 ment of flowers ? 



Flower. 



I. Note first the numerical plan of the flower. Is the 

 number five maintained throughout ? 



II. Observe the peculiar structure of the corolla, par- 

 ticularly the conspicuous folds or scales arching over the 

 essential organs. Is the flower perfectly regular ? 



III. Taking a recently opened flower, make a longi- 

 tudinal section so as to show the precise relation of all the 

 parts. Draw. 



Does the position of stigma and anthers, and the mode 

 of dehiscence of the latter, afford any indication as to the 

 way in which pollination is effected? 



IV. Examine the ovary, noting the number of its divis- 

 ions, and their form and position. 



Fruit. 



I. Study the fruit in different stages of development, 

 taking flowers of different ages for the purpose. Observe 



1. Its rapid increase in size. 



2. The formation of peculiar barbed appendages, thickly 



covering its surface. 



II. Make longitudinal sections of young fruits so as to 

 show the form and position of the seed. Compare with 

 similar sections of older fruits. 



