HOFFMANN: FLORA OF BERKSHIRE COUNTY. 357 
Tabulae List of Families. 
Families Genera Species Varieties Forms 
Native Introd. Native Introd. Native Introd. Native Introd. 
PTERIDOPHYTA 
Polypodiaceae 15 33 5 7 
Osmundaceae 13 2 2 
Ophioglossaceae 2 7 2 2 
Marsileaceae 
Equisetaceae 1 
Lycopodiaceae 1 
Selaginellaceae 1 
Isoetaceae 1 
SPERMATOPHYTA 
Gtmnospermae 
Taxaceae 1 
Pinaceae 6 
Angiospermae 
monocotyledoneae 
Typhaceae 1 
Sparganiaceae 1 
Najadaceae 2 
Juncaginaceae 1 
Alismaceae 2 
Hydrocharitaceae 2 
Gramineae 34 10 94 34 6 2 1 
Cyperaceae 10 142 1 56 4 
Araceae 6 8 3 
Lemnaceae 2 
Eriocaulaceae 1 
Xyridaceae 1 
Pontederiaceae 2 
Juncaceae 2 
Liliaceac 15 
Amaiyllidaceae 1 
Iridaceae 2 
On-hidaccae 11 
DiCOTi'LEDONEAE 
Salicaceae 2 
Myricaceae 1 
Jiiglandaceae 2 
Bctulaccae 5 
Fagaceae 3 
Urticaceac 8 
Santahu'cac 1 
Loranthaceae 1 
33 
5 
3 
2 
7 
1 
2 
6 
1 
8 
3 
2 
1 
1 
10 
2 
1 
2 
6 
2 
24 
2 
1 
5 
2 
94 
34 
6 
142 
1 
56 
8 
3 
1 
1 
2 
1 
18 
6 
28 
3 
1 
1 
5 
36 
2 
16 
6 
8 
2 
1 
4 
12 
1 
12 
1 
10 
2 
1 
1 
1 
