APPENDIX 405 



2. Make a series of annotated sketches illustrating the 

 structure of B. Draw from memory a longitudinal section of 

 the flower from which it has been derived, indicating clearly 

 the parts which have withered and those which have undergone 

 further development. All the drawings should be as nearly as 

 possible on the same scale. 



3. Select any five of the following plants and in each case 

 (a) make descriptive notes of the habitat, (6) state the month 

 or months of flowering, (c) mention briefly any peculiarities 

 of habit : Plantain or Waybread (Plantago major), Common 

 Reed (Phragmites communis), Ling (Calluna vulgaris), Sundew 

 (Drosera), Marram-grass (Psamma), Thistle (Car dims), Sloe or 

 Blackthorn (Primus spinosa), Honeysuckle or Woodbine (Loni- 

 cera Periclymenum) . 



4. Make a careful drawing of a portion of a branch of any 

 plant which climbs by means of tendrils. Indicate the 

 morphological nature of the tendrils of the plant you select 

 (giving full reasons for your conclusions) and describe exactly 

 the way in which they perform their function. 



5. Draw three successive stages in the germination of any 

 seed, showing precisely how the different organs of the embryo 

 behave. How would you show experimentally what conditions 

 are necessary for successful germination ? 



6. Growing plants are continually absorbing fresh supplies 

 of inorganic substances from their environment. Describe 

 in detail how you would find out which chemical elements are 

 necessary to the life of a green plant. State how and in what 

 forms the plant obtains each of these elements. 



7. Mention four plants that are pollinated by butterflies 

 or moths and state how their flowers are adapted to these 

 special insect-visitors. Draw a longitudinal section of the 

 flower of one of these plants, indicating the positions of the 

 nectaries, stamens, and pistil, and the position taken up by 

 the pollinating insect. 



8. Enumerate (illustrating the points with the aid of 

 diagrams) the resemblances and differences of structure 

 between a Tulip bulb and a Horse- Chestnut bud. What is the 

 morphological nature of each, and from what sources are the 

 principal food-supplies obtained when growth recommences ? 



