B. boreale Milde 
- B. lanceolatun (Gael.)Angst. '<) 
langustisegaentuiafPeafle &' Moore) 
- B. terfiatum v. rutaefolium (A.Br. )D. C.E. 
f, 
B. virginicajnHH(L. )Cw. y 
^, &( /m. be, frfl'Z'y &h3, 
EQUISETACEAE 
- Equi3etxin arvense L. 
*c,lt /r, 6fJ. <eu«^. 
f« t Tea #4^ A , cw (fti .)% 1 . <a,J*i f/H. 
^p.r^.stj,w ( fij,wii:t ) £/ i u<i 
- E. pardtense Ehrh. (4 **>/-,) 
■ Vt*/i , d_tc.<. . 
