Maxon: A NEW FERN FROM PANAMA - 21 
A new fern from Panama* 
WILLIAM R. MAXON 
The following new species of Dicranopteris was noted 
recently in determining a duplicate set of the ferns col- 
lected in Panama by Mr. R. S. Williams, of the New York 
Botanical Garden, in pie 
Dicranopteris Williamsii Maxon sp. nov. 
Rhizome TEDL atte closely branched, - slender, 
about 2 . in diameter, castaneous, rather freely aun 
cose, sparsely eet with Lig coriaceous lan 
he | rimary branches, above these olivaceous, 
elicately al deciduously squamulose (the seales minute, 
grained and bearing an occasional larger 
soak nite 
€ 
f 
‘ena pairs, erat con. apart, peeiinl wt 2 sma 
ron margina e B abave. convex jdm ind 
scattered rigidly oe stiff cage da stal ; 
ovate scales about 0.75 — yeni 1 gone — 
