TO BOTANY. 11 



-, the first principle of the new plant within the 

 seed. 2. Plumuta, a scaly part of the corculum; 

 which ascends. 3. Rostellum, a plain part of the Cor- 

 culum ; which descends. 4. Cotyledon, a side lobe 

 of the seed, of a porous substance, and perishable. 

 5. Hilum, an external mark or scar on the seed, where 

 it was fastened within the fruit. 6. Arltlus, the 

 proper exterior coat or tunic of the seed ; which 

 comes off of itself. 7- Coronula, the little crown of 

 a seed ; which is either CalycuMs, the calyx of a flo- 

 ret, adhering to the seed, and assisting it to fly ; or 

 Pappus, a down, which is a feathery or hairy crown 

 answering the same end, and connected with the seed 

 by Stipes, a trunk, which here signifies the thread on 

 which the down is raised and supported. 8. Ala, 

 wing, a membrane affixed to the seed, and which, 

 by its flying, helps to disperse it. 



Nux, a Nut; which is a seed inclosed with an os- 

 seous epidermis, a bony or hard outer skin, com- 

 monly called the shell. 



PROPAGO; which is the seed of a moss, first dis- 

 covered by Linnaeus, who peeled off the bark, and 

 detected it in the year i730. These seeds have nei* 

 ther tunic nor cotyledon, but consist only of the plu- 

 mula of a naked corculum, where the rostellum is 

 inserted into the calyx of the plant. 



CHAR VIII. 

 OF THE RECEPTACLE. 



THE RECFPTACLE, is the base which connects 

 the other six parts of a single fructification. Its va- 

 rious appellations are as follows : 



A PROPER RECEPTACLE, is that which belongs 

 only to the parts of a single fructification : And this 

 is called a receptacle of the fructification, when it is 



