534 



PRODUCTION 



Sect. XIX. 



A curious 



o 



y 



h 



a 



Ki 



fts be?weeii 



thefe 



getabl 



monfters and thofe of the animal world ; as a duplicature of limbs 

 frequently attends the latter, as chickens and turkeys with four legs 



/ 



and four wings, 

 parts fubfervient 



nd calves with two heads. And in m 



the 



generation become defi 



wh 



they 



propagate their fp 



flo 



which 



prod 



no 



feed 



iaiSlly as in thefe full 



And in refpe£t to botanic fyflems, it 





may be obferved from' thefe vegetables 



of luxuriant growth 



that 



the ftamens and piftils are lefs liable to change than the corols and 

 nedaries, ar 



d are therefore more proper parts for the claffification of 



plants 

 fyftem 



on which idea I 



h 



ftru6led h 



ailed 



And laftly th 



th 



caly 



the next mod 



changeable part of the flow 



, or perianth, is 



I 



this is feldom doubled or m 



y 



plied 



and 



hen 



by infpedling the calyx the genera of many 



double flowers may be detefted ; thus the double ranunculus poirelTc 



lyx, but the double anemone is without one, like the fi 



o 



of thofe g 



The greater duration of double flowers than Angle ones is fo 



re 



£) 



markable in fome poppies, that their fingle flowers lofe 



few h 



while in the double ones it 



feveral da 



this circumftance is well worthy the attention of thofe, wh 

 poppies for the purpofe of 



wounding the head, which inclofes 



feeds, for the opium, which thus exfud 



As poppies with doubl 



flowers may probably be capable of yielding opium, before they fhed 



flo 



and as Ion 



g as other 



Dr. Smith afcribes this event 



th 



poppies 

 z organ 



ft 



they fhed th 



m 



of reprodu6l 



bei 



"g 



obliterated, and the confequent want of impre 



by th 



to 



ftimulus of which he thinks the vegetable irritability may be foon 



«xhaufl:ed in fiugle fl 



dadd 



that on the fame 



many plants refift a greater degree of cold for feveral winters before 

 flowering; but after that event they perifli at the firfl: approach of 

 ^d, and can by no art be preferved fo as to furvive the winter." 



I And 



; 



