PLANTS OF RHODE ISLAND. 123 



No. of Gen. No. of Sp. No. of Vars. 



Lemnacese 1 2 



Typhaceae 2 4 



Naidaceae 5 20 3 



Alismaceae 4 8 6 



Hydrocharidaceae 2 2 



Orchidacese 12 30 1 



Amaryllidaceae 1 1 



HaBmodoracese 2 2 



Iridaceae 2 3 



Dioscoreaceae l l 



SmilaceaB 1 3 1 



Liliaceae 14 25 1 



Juncaceae 2 16 5 



Pontederiaceae 1 l 



Xyridaceae l 2 



Eriocaulonaceae 1 1 



Cyperaceae 12 131 18 



Gramineae 48 126 7 



Equisetaceae l 4 



Filices 16 33 10 



Lycopodiaceae 3 13 



Characeae 2 8 



Musci 54 185 13 



Hepaticae 37 74 2 



Lichenes 41 151 45 



Fungi 150 582 3 



Algae 190 619 53 



TOTAL. 



Phanerogams. . .103 orders, 475 genera, 1,259 species, 101 varieties. 

 Cryptogams.... 9 " 494 " 1,669 " 129 



112 971 2,928 230 



3,158 species and varieties. 



Twenty-two orders are eacli represented by one species. 



251 genera of Phanerogams are represented by one species. 

 229 " " Cryptogams. 



Where the typical form is not found with us, but is represented 

 by a variety, I have esteemed that variety as a species in the above 

 enumeration. 



Of the 1,259 species of flowering plants, 200 species are Intro- 

 duced. 



