REJECTED OLD, AND NEW GENERA. 129 



Old Genera. New Genera. 



Tuber Lycoperdon, with a more solid substance!" 



r, .j CElvela, with a substance smooth on both 



^"S^es { sides. 



Lycoperdoides Lycoperdon, with a cellular substance. 



Amanita Agaricus, with the pileus on a stipes. 



-p»7 „ C Boletus, with a volva at the base of the 



Fhallus | stipes. 



T17 „ , . ("Boletus, with a pileus not closed in the 



Phalloboletus. ........ < s \^ es 



Polyporus j[ Boletus, with pores not to be distinguish- 



Erznaceus Ulex, thick-set with spines. 



Thysselinum „ Selinum, with a milky juice. 



Moly Allium, with a sweet scent. 



Acetosa Lapathum*, with an acid taste, 



Colocynthis Anguria*^, with a bitter fruit. 



CHAR XXXII. 



Of the Genera rejected by the System, as grounded on 

 the Variations of some Parts only of the Fructifica- 

 tion. 



IT has been observed, in Chap. XXIX., that there are few 

 genera, wherein all the parts of fructification are constant in 

 every species ; and that this inconstancy of particular parts had 

 been another source of error in former botanists. We shall here 



* Now Rumex, 



f Now Cucimis. 



K 



