BOTANY. 
255 
Order —Hexandria, 
Octandria, 
Decandria, 
Order —Polyandria, 
XVI. MONADELPHIa. 
Order —Triandria, 5 stamens, blue-eyed grass, juniper. 
Decandria, 10 stamens, bloody-geranium, cranesbill. 
Polyandria, many stamens, hollyhock, mallows. 
In this class the filaments are together at the bottom, but separate at 
the top. 
XVII. DIADELPHIA. 
6 stamens, colic-weed, fumitory. 
8 stamens, milkwort, flowering wintergreen. 
10 stamens, lupine, common pea. 
XVIII. POLYDELPHIA. 
common St.-John-wort. 
XIX. SYNGENESIA. 
Order —Polygamia equalis ; florets furnished with stamens and pistils ; 
dandelion. 
Polygamia superflua; florets in the centre with stamens 
and pistils, in the circumference pistils only; southern¬ 
wood, artemisia. 
Polygamia frustanea; florets in the centre, with stamens and 
pistils, those in the circumference without any ; sunflower, 
blessed thistle. 
Polygamia necessaria; florets in the centre, with stamens and 
pistils, but producing no seed — the pistils on the outside 
only having seed; marygold. 
Polygamia segregata; separate florets; globe thistle. 
This class comprehends the flowers called compound, theil anthers 
being united. 
XX. CRYPTOGAMIA. 
This class consists of those plants, in which the fructifications are ob¬ 
scure ; and, therefore, do not fall under any of the preceding classes and 
orders. They have been divided into six orders : — 
1. Miscellanea; including plants incapable of arrangement, as the 
horsetail. 
2 . Felices, or ferns; well known, as the spleenwort and polypody. 
3. Musci, or the family of mosses ; well known. 
4. Algae ; comprising plants scarcely admitting of a division into root, 
stem, and leaf, such as lichens and seaweed. 
5. Fungi; as funguses, comprising mushrooms, toadstools, &c. 
6. Hepaticae ; mosses distinguished from common mosses by a differ¬ 
ence in the fructification. 
Having given this brief view of the Linnsean division of the 
vegetable kingdom into classes and orders, the next thing to be 
