1 6 One Thousand Objects 



the pollen of the majority of coniferous trees. >.IHP) 

 fig. 14.) 



1 1 8. DOCK POLLEN (Rumex sp.} Most species of 

 Dock yield a spherical, rough, granulated pollen, of rather 

 small size, and is useful in helping to a variety in the col- 

 lection of pollen grains, rather than from any peculiar 

 beauty of its own which it may possess as a recommenda- 

 tion. (PI. II., fig. 15.) 



119. PRIMROSE POLLEN (Primula vuigaris). The gra- 

 nules are very small and of a nearly ellipsoidal outline, with 

 six longitudinal furrows, which leave an equal number of 

 prominent ridges, which give the pollen a stellate appear- 

 ance in an end view, which is represented in the figure. 

 (PL II., fig. 1 6.) 



120. CUCUMBER POLLEN (Cucumis sativd). A sphe- 

 rical pollen, with three little warts or projections on the 

 surface. Several others of the Cucumber family possess 

 similar pollen. 



121. FUCHSIA POLLEN (Fuchsia cocdneci). Of a tri- 

 angular form, somewhat flattened, with papillae at the 

 angles. 



122. COLTSFOOT POLLEN (Tussilagofarfar}. The gra- 

 nules are nearly spherical, with three obscure bands. The 

 whole surface covered with long spines. 



123. BLUEBELL POLLEN (Campanula tracheliuni). Of 

 a spherical form, the surface partly covered with little 

 spines, and apparently also punctate. 



124. POLLEN OF ORCHID (Orchis mascula). This may 

 be taken as a type of Orchid pollen. The pollen adheres 

 together in a mass by means of elastic threads, which 

 unite at the base into a caudicle, terminating in a viscid 

 disc. 



The small SEEDS of plants are very interesting objects 

 for low powers, and the following will be found a good 

 representative collection. Those which are not native are 

 in common cultivation, and may be purchased from a re- 

 spectable florist. 



125. OPIUM POPPY SEED (Papaver somniferum}. The 

 seeds of either the white or grey variety are good opaque 



