HALF AN HOUR WITH CORALLINES. 



93 



exceedingly slender, and the texture thin. The 

 capsules are liable to folding and wrinkling, when 

 dry, on this account. The latter have eight 

 longitudinal ridges, which terminate in as many 

 projections of the apex (Fig. 45, 1) c). At the out- 

 side, Diphasia rosacea is never above two inches in 

 height. And yet small and delicate though it be, it 

 spreads rapid destruction around the place where 



Fig. 44. 



Lily Coralline. 



it takes up its abode. Another species of Diphasia, 

 irregularly branched, which may also be collected, 

 is that known as the " Sea-Tamarisk (D. tamarisca). 

 This, however, is of a strong, robust habit, and often 

 grows to a large size. The cells have the upper 

 half diverging, with a three-toothed aperture. The 

 male capsules are the smallest. These are some- 



