Jamesoniane. N. O. Filices. 
DCCCCXLVIL. 
POLYPODIUM FARINOSUM, Hook. 
Parvum submembraneceum fronde elliptico-lanceolata pinnata 
utrinque pulveraceo-farinosa albida, pinnis approximatis 
lineari-oblongis patentibus sessilibus subdecurrentibus ob- 
tusis sinuato-crenatis basi sursum obtuse auriculatis, venis 
unifureatis apice clavatis, venula superiore apice sorifera, 
soris medio intra costam et marginem uniseriatis magnis 
aureis, stipite gracili brevi nudo. 
Has. On the trunk of an old tree at the eastern ascent of 
the Cordillera of Quito, where the forests commence; rare, 
and very few specimens were gathered, Prof. W. Jameson. 
substance, which invests both sides of the half dozen specimens 
m my possession of this rare Fern, and which has the 
C d 
in the upper half at least, to form rather’a frond pinnatifid to 
the very base than a truly and entirely pinnated one. 
have seen no specimen, nor any species like the present from 
. 
any Botanist save Professor Jameson, 
Fig. 1. Three pinne, upper surface. f. 2. Fertile pinna 
seen from beneath : salad: a oe 
