CHAPTER XII. 
THE LITTLE ADDERS -TONGUE. 
Ophiogl os sum lusitanicum. 
A TINY little fern, sufficiently near in its re- 
semblance to the Adders-tongue major to 
claim close relationship. A British fern it is, 
but hardly an inhabitant of England, — although 
it has been stated that specimens have been 
found in Cornwall. But in Guernsey it has 
its habitats, having been found near some 
rocks in that charming little nook, Petit Bot 
Bay. Like the Adders-tongue major, Ophio- 
glossum lusitanicum has one barren frond— 
sometimes two — and an erect spike of fructifi- 
cation. But the barren frond, instead of 
being pear-shaped, is lance-shaped, simple, 
unscalloped, much smaller, and much nar- 
rower than in Vulgatum . Like the latter, it 
