THE SEEDS OF OYMNOSPERMS. 439 



the cone; in the Cypress and other Cupressine*, on the other hand, towards the 

 free margin of the scale (figs. 337 . < ), and away from the axis of the cone. 



In several species, as in the Stone Pine (Finns Pinea) and the Arolla Pine 



(Pmus Cemhra), the seed-coat attains a thickness of 1* to 2 millimetres, so that 



1 resembles a nut in appearance. Both these species, indeed, serve as an 



Fig. 333. The Lotus Lily (Nelumbium speciosum). (From a photograph.) 



article of diet, being eaten like nuts. The seeds of Pines and Fir-trees are provided 

 with a one-sided wing (cf. figs. 335 3 ' 4 > 5 ) which plays an important part in their 

 dispersal by wind. In the Maidenhair Tree (Oinkgo biloba) the integument of the 

 se^d becomes succulent and coloured a bright orange, so that the seed in a way 

 resembles a drupe (cf. fig. 337 7 ). In Cycas revoluta, also, the integument becomes 

 red and fleshy (cf. fig. 208 7 , p. 74). 



