14 AN INTRODUCTION 



COROLLA and CALYX, are the teguments or 

 covers of the stamina and pistillum ; the Calyx aris- 

 ing from the cortical Epidermis, or outer bark, and 

 the Corolla from the Liber, or inner bark. * 



RECEPTACULUM, is that part which connects the 

 parts before- mentioned. 



From these characters the following principles 

 may be deduced : 



]. That every vegetable is furnished with flqwer 

 and fruit; there being no species where these are 

 wanting. 



. That there is no fructification without anthera, 

 stigma, and seed. 



3. That the antherae and stigma constitute a 

 flower, whether the covers are present or wanting. 



4. That the seed constitutes a fruit, whether there 

 be a pericarpium or not. 



In respect to the seed ; its essence consists in the 

 Corculmn, which is fastened to the Cotyledon, and 

 involved therein, and closely covered with its proper 

 tunic. 



The essence of the Corculum consists in the Plu- 

 mula; which is the vital speck oi the plant itself, ex- 

 tremely small in its dimensions, but increasing like a 

 bud to infinity. The Rostellurn however must be 

 included, being the base of the plumula, which de- 

 scends and strikes root, being the part originally con- 

 tiguous to the mother plant. 



That the Propagines, or seeds of mosses, consist 

 only of the Piumula and Rostellum, has been al- 

 ready shewn. (See Chap. 7.) 



* This supposed origin of the Calyx and Corolla has not 

 been confirmed by the more accurate anatomy of modern 

 physiologists. 



