30 
CLASSES OP LINNAEUS. 
The next class is named by an abbreviation of the world gynia 
which signifies pistil, prefixed to andria, showing that the sta- 
mens and pistil are united. 
Position. 
18. Gyn-andria. ( Stamens growing out 
\ of the pistil. 
The two following classes are named by 
prefixing numerals to cecia, which signifies a 
house. 
19. Mon-cecia. 
20. DI-CEC1A. 
f Stamens and Pistils 
j on separate corollas 
upon the same plant , 
or in one house. 
'Stamens and Pistils, 
J in separate corollas 
| upon different plants 
or in t wo houses. 
The name of the last class is a compound of two Greek 
words crypto and gamia, signifying a concealed union. 
Natural. 
21. Crypto-gamia. 
f Stamens and Pistils 
invisible , or too small 
to be seen with the 
naked eye. 
The number of classes as arranged by Linnaeus was twenty- 
four. Two of them Poly-adelphia, (many brotherhoods,) which 
was the eighteenth class, and Poly-gamia, (many unions,) the 
twenty-third class have, by late botanists, been rejected as un- 
necessary. 
The eleventh class Dodecandria, which included plants whose 
flowers contain from twelve to twenty stamens, has been more 
recently omitted. The plants which belong to these have been 
distributed among the other classes. 
A few botanists retain the whole twenty-four ; among Ame- 
rican writers who adopt but twenty-one, are Eaton, Torrey, 
and Nuttall. 
Position. — Natural class. — Classes omitted. — 
