N 
N Piare LI. в. 
THE COMMON ADDERS TONGUE, 
(OPHIOGLOSSUM VULGATUM). 
N OPHIOGLOSSUM, Linneus, 
0. уплати: fronds usually solitary; barren branch ovate obtuse; fertile branch 
linear 
Cormlike Crown forming a thickened fusiform descending axis (rhizome 
bud or gro 
1 by a few brown membranaceons sheaths. Д 
n a somewhat whorled manner from the crown an 
spn 
4 under-ground in a s 
perpendicular axi s 
ike manner, and produ. 
exterior to the former fronds, at the apex of the crown 
Шо, succulent, usually elongated to about two-thirds the height 
of the frond, traver bas 
4; divided above into a separate fertile and barren brane 
ight, the sterile branch enelosing the 
