m 
ORDERS OF LINN.EUS. 
Fig. 10. 
The name of the 21st class is a compound of two Greek words, 
CRYPTO and gamia, signifying a concealed union. 
Natural Families. 
Fiof. 11. 
21. Ceypto-gamia, 
Stamens and Pistils invisible, or too 
small to be seen with the naked eye. 
Ferns. 
Mosses. 
Lichens. Mushrooms. 
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, are now, by many botanists,* rejected as unnecessary. The 
eleventh class, Dodecandria, which included plants M^hose flowers 
contain from twelve to twenty stamens, has been more recently 
omitted. The plants which were included in these three classes have 
been distributed among the other classes. 
T%e Orders of Linnceus. 
The orders of the first twelve classes are founded upon the num- 
ber of Pistils. 
The orders are named by prefixing Greek numerals to the word 
GYNiA, signifying pistil. 
ORDERS. 
Names. 
1. MONO-GYNIA, 
2. Dl-GYNIA, 
Orders found in 
the first twelve 
classes. 
No. of pistils. 
1. 
3. Tri-gynia, 
4. Tetra-gynia, 
5. Penta-gynia, 
6. Hexa-gynia, 
7. HePTA- GYNIA, 
8. octo-gynia, 
9. Ennea-gynia, 
10. Deca-gynia, 
10. 
this order seldom found, 
this still more unusual, 
very rare, 
very rare. 
13. Poly-gynia, over ten pistils. 
The classes vary as to the number of orders which they contain. 
The orders of the 13th class, Didynamia, are but two. 
1. Gymnospermia. From gymnos, signifying naked, and spermia, 
Re.,d3 usually four, lying in signifying Seed, implying that the seeds are not 
the calyx. covered by a seed vessel. 
2. Angiospermia. From angio, signifying bag or sack, added to 
Seed*, numerous in a capsule, SPERMIA, implying that the secds are covered. 
* A few writers still retain the 24 classes of Linnaeus ;— but in the works of Eaton. 
Torrey, Beck, and Niittall, only 21 are adopted. 
*~What dues Crypto^auiia sitrnify 7- riassps omitted— Orders of the first twelve 
classes, on what founded 1— How are the orders named 7— Orders of the class k>m' 
