294 TESTA, THE SKIN. 



do not ascend, the functions of a real Coty- 

 ledon, as far as air is concerned, and those 

 of the Albumen may be united in these 

 lobes, as is the case with most Leguminous 

 plants ; which is rendered more probable, 

 as several of the latter have the corre- 

 sponding parts likewise remaining under 

 ground. Hence the divided Vitellus of 

 the Cyanms is to be considered as a pair 

 of subterraneous Cotyledons, and the plant 

 consequenthr ranp;es near its natural allies 

 the Poppy tribe, as Mr. Salisbury, without 

 the aid of physiology, has shown in the 

 Annals of Botany , v. 2. p. 70, 75. 



Testa, f. 4, the Skin, contains all the parts 

 of a seed above described, giving them their 

 due shape ; for the skin is perfectly formed, 

 while they are but a homogeneous liquid. 

 This coat differs in thickness and texture 

 in different plants. It is sometimes single, 

 but more frequently lined with a finer and 

 very delicate film, called by Gaertneril/e/w- 

 hrana, as may be seen in a Walnut, and 

 the kernel of a Peach, Almond, or Plum. 

 In the Jasmine a quantity of pulp is lodged 



