

SECT. I. THE SEED. 251 



the structure of seeds and fruits, without actually 

 investigating every thing for himself; or to qualify 

 himself for original investigation, by studying the 

 works of the most approved master, must, like the 

 candidate for literary fame to the models of classical 

 excellence, give his days and his nights to the 

 volumes of Gaertner. On this account I shall con- 

 tent myself with presenting to the reader a con- 

 densed view of the result of his investigations, 

 distributed under such arrangement, and interspersed 

 with such other observation, example, or remark, as 

 shall seem most likely to give elucidation to the 

 subject ; with a view to which I shall first of all 

 institute that division of the mass of the seed by Division 

 which it is regarded as consisting of two principal principal 

 parts distinguishable without much difficulty ; parts> 

 namely, the integuments and nucleus, or em- 

 bryo and its envelopes. 



SUBSECTION i. 

 Integuments. The integuments proper to the invested 



. r . by a* epi- 



seed are two in number, an exterior integument dermis, 

 and an interior integument ; which are sometimes, 

 however, enveloped by the additional integument 

 already noticed as constituting an appendage of the 

 seed, under the title of the pellicle or seminal 

 epidermis of Gaertner. 



ARTICLE l. The Exterior Integument. The Or testa, 

 exterior integument which Gaertner denominates 

 the Testa is the original cuticle of the nucleus, not 



