3 
Gen. 2. — Oleandra. Cavanilles. Veins numerous, close, 
parallel ; root creeping. 
Gen. 3 . — Nephrodium. Schott. Lower veins arching. 
Nephrolepis, Schott is not represented in South Africa. 
Sect. 2 . — Aspidiarice. Pr. Involucre round or elliptic; 
entire. 
Gen. 1. — Polystichum . Schott. Sori round; veins simple 
or forked ; fronds coriaceous. 
Gen. 2. — Cyrtomium . Pr. Sori round; veins irregularly 
reticulate. 
Gen. 3. — Didymochlcena. Desvaux. Sori elliptic; sub- 
immersed. 
Phanerophlebia,, Pr., Cyclodium, Pr., Sagenia., Pr., Fadyenia., 
Hooker., Mesochleena., Br., Aspidium., Schott, Pleocnemia.., Pr., 
and Matonia , Br., are not represented in South Africa. 
TRIBE 3. 
Aspleniaceee. Pr. Sori globose, oblong, or linear, on 
back of veins. Involucre suborbiculate, or linear, lateral, 
persistent, skinny ; free at margin opposite point of insertion. 
Rhizome globose, seldom creeping. 
Sect. 1. Cystopteridece. Pr. Sori globose. Involucre 
suborbiculate, becoming reflex and wrinkled. 
Gen. 1. — Cystopteris . Bernh. Sori on middle ofveinlets. 
Acrophorus, Pr., Leucostegia, Pr., and Onoclea., Linn., are not 
represented in South Africa. 
Sect. 2. Blechnacece. Pr. Sori oblong, short, or linear 
long. Involucre corresponding, flat. 
Gen. 1. — Athyrium. Roth. Sori oblong, short, curved, 
on middle of veins. 
Gen. 2. — Blec/inum. L. Sori linear, contiguous or con- 
fluent, on transverse veinlets uniting veins, parallel to rachis. 
Woodwardia, Sw., Doodia, Br., and Salpichlaena, I. Sm., are 
not represented in South Africa. 
Sect. 3. Aspleniariae. Pr. Sori linear, long, in some 
species (Casnopteris, Bernh., or Darea, Auct), marginal or 
sunk in margin. Involucre corresponding, flat. 
Gen. 1 .—Asplenium. L. Sori linear, long. Involucre 
lateral on vein, 
c 
