Gardneriane. N. O. Filices. 
TAB. CXCI, 
ADIANTUM DOLABRIFORME. 
Fronde elongata pinnata, pinnis petiolatis membranaceis sub- 
ovatis margine superiore arcuatis lobulatis, inferiore basique 
superiore truncatis, supremis oblique cuneatis, lobulis fructi- 
eris. 
Has. Brazil. Mr. Gardner. 
The species that comes nearest to the present one is the Ad. 
lunulatum, Sw., of the East Indies;—but there, as the name 
implies, the pinne are curved or somewhat half-moon shaped. 
Here the lower margin formsa straight line, as does the superior 
base, while the rest of the margin describes the segment of a circle. 
This configuration, the petiole being inserted at the lower angle 
and in a nearly straight line with the lower margin, gives to the 
pinnuli, including the petiole, somewhat the appearance of a 
hatchet. 
Fig. 1, Pinna :—magnijied. 
3D 
