( go ) 
Ms mind the cflential circumftance of the 
firft twenty clauses* viz. their having their 
ftamens and piftils in one flower. To this clafs 
of one-houfe belongs the nutmeg (myrlftica), 
for the knowledge of which flower the world 
is Indebted to Dr. Thunberg, who has given a 
defcription of the genus from the real flowers, 
whereas the former characters were taken 
from a plant which had no affinity to the true 
nutmeg. The clafs Dicecia, or two-houfes, 
contains thofe flowers which have their fta- 
mens growing on one plant, and their piftils 
on another. Vallifneria belongs to this clafs : 
the wonderful progrefs of the flowers of this 
plant feems to furnifh a ftrong argument for 
the fenfation of plants ; but this is not the 
time to enter into the difcuffion of that part 
of our fubject. Hemp (cannabis), hop (ha- 
mulus), mercury (mercurialis), and willow 
(falix), all belong to the clafs two-houfes : 
there are fifteen orders contained in this clafs* 
characterized from the fame circumftances 
with thofe of Moncecia, or one-houfe, and 
named by words expreflive of thofe circum- 
ftances. Great fault is found with the con- 
tradictions that this occasions ; and certainly 
this part of the fyftem is open to cenfure, 
3 an< ^ 
