Schomburghiane, N. O. Filices. 
TAB. CCCLXXXVI. 
‘Potyropium (Evupoxyp.) pisconor, 
P tosum, fronde lanceolata subcoriacea pinnatifida nes 
viridi glabra subtus pulvereo-albida laciniis oblongis obtusis 
tegerrimis, soris marginalibus uniserialibus. oe 
British Guiana; Mr Schomburgh, n. 1031. oe 
his is very different from any Polypodium with which Tam 
nted, and remarkable for the underside being - -covered 
‘white pulverulent substance, which contrasts curi 
e dark and naked upper surface, The costa or mi 
Prominent on both sides ; but the venation is alt 
al, and is quite obsolete on the surface, Sori dark 
ar, 
: 1. Portion of a frond, seen from beneath, with sori 
