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Fucus. Male, veficles interwoven with hairs. 
Females, veficles full of gelatinous mat- 
ter. There are fifty-eight fpecies, above 
forty of which are found on our coafts. 
In the Flora Scotica you will find plates 
of fix different fpecies of thefe Fuci, 
which will give you a fufficient idea of 
the habitus of this genus. 
Ufoa. Laver. Fructification in a diaphanous 
membrane. Of the fourteen fpecies of 
Ulva, ten are found on our coaft. 
Conferva. Fructifications tubular, unequal, 
difperfed, on long capillary fibres, either 
feffile or floating. Of thefe we have 
twenty-nine fpecies. 
Byjfus. Simple down or powder. Of thefe 
we have eleven fpecies. 
FUNGI. This Order includes every ve- 
getable of the Fungus or Mufliroom kind. 
jfgartcus. Linnseus's characteriftic of this 
genus is Fungus horizontal! s, fubtus la- 
mellofus. He might with as much pro- 
priety have called a tree, whofe branches 
are horizontal, plant a horizontal^. In 
fact there is nothing in this genus ho- 
i 2 rizontal, 
